Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites
Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fib...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Chlup, Zdeněk [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2018transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome - Barisic, N ELSEVIER, 2013, an international journal, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:147 ; year:2018 ; day:15 ; month:08 ; pages:122-127 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.compositesb.2018.04.021 |
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ELV043442412 |
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| 245 | 1 | 0 | |a Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites |
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| 520 | |a Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. | ||
| 520 | |a Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. | ||
| 650 | 7 | |a Heat treatment |2 Elsevier | |
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| 650 | 7 | |a Mechanical properties |2 Elsevier | |
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| 700 | 1 | |a Černý, Martin |4 oth | |
| 700 | 1 | |a Strachota, Adam |4 oth | |
| 700 | 1 | |a Hadraba, Hynek |4 oth | |
| 700 | 1 | |a Kácha, Petr |4 oth | |
| 700 | 1 | |a Halasová, Martina |4 oth | |
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10.1016/j.compositesb.2018.04.021 doi GBV00000000000507.pica (DE-627)ELV043442412 (ELSEVIER)S1359-8368(18)30167-7 DE-627 ger DE-627 rakwb eng 610 VZ 580 540 VZ BIODIV DE-30 fid 42.00 bkl Chlup, Zdeněk verfasserin aut Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Heat treatment Elsevier Fibres Elsevier Mechanical properties Elsevier Thermosetting resin Elsevier Černý, Martin oth Strachota, Adam oth Hadraba, Hynek oth Kácha, Petr oth Halasová, Martina oth Enthalten in Elsevier Barisic, N ELSEVIER O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome 2013 an international journal Amsterdam [u.a.] (DE-627)ELV011782439 volume:147 year:2018 day:15 month:08 pages:122-127 extent:6 https://doi.org/10.1016/j.compositesb.2018.04.021 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.00 Biologie: Allgemeines VZ AR 147 2018 15 0815 122-127 6 |
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10.1016/j.compositesb.2018.04.021 doi GBV00000000000507.pica (DE-627)ELV043442412 (ELSEVIER)S1359-8368(18)30167-7 DE-627 ger DE-627 rakwb eng 610 VZ 580 540 VZ BIODIV DE-30 fid 42.00 bkl Chlup, Zdeněk verfasserin aut Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Heat treatment Elsevier Fibres Elsevier Mechanical properties Elsevier Thermosetting resin Elsevier Černý, Martin oth Strachota, Adam oth Hadraba, Hynek oth Kácha, Petr oth Halasová, Martina oth Enthalten in Elsevier Barisic, N ELSEVIER O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome 2013 an international journal Amsterdam [u.a.] (DE-627)ELV011782439 volume:147 year:2018 day:15 month:08 pages:122-127 extent:6 https://doi.org/10.1016/j.compositesb.2018.04.021 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.00 Biologie: Allgemeines VZ AR 147 2018 15 0815 122-127 6 |
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10.1016/j.compositesb.2018.04.021 doi GBV00000000000507.pica (DE-627)ELV043442412 (ELSEVIER)S1359-8368(18)30167-7 DE-627 ger DE-627 rakwb eng 610 VZ 580 540 VZ BIODIV DE-30 fid 42.00 bkl Chlup, Zdeněk verfasserin aut Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Heat treatment Elsevier Fibres Elsevier Mechanical properties Elsevier Thermosetting resin Elsevier Černý, Martin oth Strachota, Adam oth Hadraba, Hynek oth Kácha, Petr oth Halasová, Martina oth Enthalten in Elsevier Barisic, N ELSEVIER O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome 2013 an international journal Amsterdam [u.a.] (DE-627)ELV011782439 volume:147 year:2018 day:15 month:08 pages:122-127 extent:6 https://doi.org/10.1016/j.compositesb.2018.04.021 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.00 Biologie: Allgemeines VZ AR 147 2018 15 0815 122-127 6 |
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10.1016/j.compositesb.2018.04.021 doi GBV00000000000507.pica (DE-627)ELV043442412 (ELSEVIER)S1359-8368(18)30167-7 DE-627 ger DE-627 rakwb eng 610 VZ 580 540 VZ BIODIV DE-30 fid 42.00 bkl Chlup, Zdeněk verfasserin aut Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Heat treatment Elsevier Fibres Elsevier Mechanical properties Elsevier Thermosetting resin Elsevier Černý, Martin oth Strachota, Adam oth Hadraba, Hynek oth Kácha, Petr oth Halasová, Martina oth Enthalten in Elsevier Barisic, N ELSEVIER O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome 2013 an international journal Amsterdam [u.a.] (DE-627)ELV011782439 volume:147 year:2018 day:15 month:08 pages:122-127 extent:6 https://doi.org/10.1016/j.compositesb.2018.04.021 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.00 Biologie: Allgemeines VZ AR 147 2018 15 0815 122-127 6 |
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10.1016/j.compositesb.2018.04.021 doi GBV00000000000507.pica (DE-627)ELV043442412 (ELSEVIER)S1359-8368(18)30167-7 DE-627 ger DE-627 rakwb eng 610 VZ 580 540 VZ BIODIV DE-30 fid 42.00 bkl Chlup, Zdeněk verfasserin aut Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites 2018transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. Heat treatment Elsevier Fibres Elsevier Mechanical properties Elsevier Thermosetting resin Elsevier Černý, Martin oth Strachota, Adam oth Hadraba, Hynek oth Kácha, Petr oth Halasová, Martina oth Enthalten in Elsevier Barisic, N ELSEVIER O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome 2013 an international journal Amsterdam [u.a.] (DE-627)ELV011782439 volume:147 year:2018 day:15 month:08 pages:122-127 extent:6 https://doi.org/10.1016/j.compositesb.2018.04.021 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.00 Biologie: Allgemeines VZ AR 147 2018 15 0815 122-127 6 |
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effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites |
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Effect of the exposition temperature on the behaviour of partially pyrolysed hybrid basalt fibre composites |
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Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. |
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Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. |
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Composites utilising long fibres as reinforcement are the most effective from the point of view of the toughening effect. A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement. |
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A brittle matrix reinforced by brittle fibres was investigated in this work. Polysiloxane resin was used as matrix precursor in the studied composite, while continuous basalt fibres served as reinforcement. An optimised pyrolysis process conducted at 650 °C under nitrogen atmosphere turned the polymeric precursor into the so-called hybrid matrix consisting of nano-domains of pyrolytic SiOC glass and of non-transformed polysiloxane polymer. The pyrolysis temperature of 650 °C was found to be optimal, resulting in the fracture toughness attacking the level of 20 MPa m1/2 and the strength reaching the value of 1 GPa. The main aim of this paper is to investigate microstructural changes occurring during long-term (1000 h = 41.7 days) exposition to an oxidative air atmosphere at temperatures from 250 °C to 600 °C and to describe the effect on the mechanical properties of the studied hybrid-matrix composite. The increasing exposition temperature leads to a significant embrittlement of the composite, while the elastic properties (modulus) remain unchanged. Chemical or microstructural changes in the basalt fibres were not detected after the long-term exposition to the tested high temperatures. Nevertheless, fibre embrittlement can be estimated from the tests. Both matrix and fibre-matrix interface were found to suffer from the applied exposition. Distinct changes in chemical composition as well as in microstructure were observed for the matrix. Hence, the observed embrittlement of the composite can be ascribed partly to the changes in the hybrid matrix and the fibre-matrix interface, and partially to fibre embrittlement.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Heat treatment</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Fibres</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Mechanical properties</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Thermosetting resin</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Černý, Martin</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Strachota, Adam</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hadraba, Hynek</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kácha, Petr</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Halasová, Martina</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Barisic, N ELSEVIER</subfield><subfield code="t">O46 – 1548 Long term follow-up of clinical and neurographical abnormalities in eight Croatian patients with triple A syndrome</subfield><subfield code="d">2013</subfield><subfield code="d">an international journal</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV011782439</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:147</subfield><subfield code="g">year:2018</subfield><subfield code="g">day:15</subfield><subfield code="g">month:08</subfield><subfield code="g">pages:122-127</subfield><subfield code="g">extent:6</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.compositesb.2018.04.021</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">FID-BIODIV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">42.00</subfield><subfield code="j">Biologie: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">147</subfield><subfield code="j">2018</subfield><subfield code="b">15</subfield><subfield code="c">0815</subfield><subfield code="h">122-127</subfield><subfield code="g">6</subfield></datafield></record></collection>
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