Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders
Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders...
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| Autor*in: |
Sciti, D. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2002 |
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| Schlagwörter: |
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| Anmerkung: |
© Kluwer Academic Publishers 2002 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Kluwer Academic Publishers, 1966, 37(2002), 17 vom: Sept., Seite 3747-3758 |
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| Übergeordnetes Werk: |
volume:37 ; year:2002 ; number:17 ; month:09 ; pages:3747-3758 |
| Links: |
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| DOI / URN: |
10.1023/A:1016577728915 |
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| Katalog-ID: |
OLC2046276183 |
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| 245 | 1 | 0 | |a Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders |
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| 520 | |a Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. | ||
| 650 | 4 | |a Oxygen Enrichment | |
| 650 | 4 | |a Densification Test | |
| 650 | 4 | |a Densification Rate | |
| 650 | 4 | |a Pressureless Sinter | |
| 650 | 4 | |a Al2O3 Powder | |
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| 700 | 1 | |a Bellosi, A. |4 aut | |
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10.1023/A:1016577728915 doi (DE-627)OLC2046276183 (DE-He213)A:1016577728915-p DE-627 ger DE-627 rakwb eng 670 VZ Sciti, D. verfasserin aut Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders 2002 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2002 Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. Oxygen Enrichment Densification Test Densification Rate Pressureless Sinter Al2O3 Powder Vicens, J. aut Bellosi, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 37(2002), 17 vom: Sept., Seite 3747-3758 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:37 year:2002 number:17 month:09 pages:3747-3758 https://doi.org/10.1023/A:1016577728915 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 37 2002 17 09 3747-3758 |
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10.1023/A:1016577728915 doi (DE-627)OLC2046276183 (DE-He213)A:1016577728915-p DE-627 ger DE-627 rakwb eng 670 VZ Sciti, D. verfasserin aut Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders 2002 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2002 Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. Oxygen Enrichment Densification Test Densification Rate Pressureless Sinter Al2O3 Powder Vicens, J. aut Bellosi, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 37(2002), 17 vom: Sept., Seite 3747-3758 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:37 year:2002 number:17 month:09 pages:3747-3758 https://doi.org/10.1023/A:1016577728915 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 37 2002 17 09 3747-3758 |
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10.1023/A:1016577728915 doi (DE-627)OLC2046276183 (DE-He213)A:1016577728915-p DE-627 ger DE-627 rakwb eng 670 VZ Sciti, D. verfasserin aut Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders 2002 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2002 Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. Oxygen Enrichment Densification Test Densification Rate Pressureless Sinter Al2O3 Powder Vicens, J. aut Bellosi, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 37(2002), 17 vom: Sept., Seite 3747-3758 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:37 year:2002 number:17 month:09 pages:3747-3758 https://doi.org/10.1023/A:1016577728915 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 37 2002 17 09 3747-3758 |
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10.1023/A:1016577728915 doi (DE-627)OLC2046276183 (DE-He213)A:1016577728915-p DE-627 ger DE-627 rakwb eng 670 VZ Sciti, D. verfasserin aut Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders 2002 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2002 Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. Oxygen Enrichment Densification Test Densification Rate Pressureless Sinter Al2O3 Powder Vicens, J. aut Bellosi, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 37(2002), 17 vom: Sept., Seite 3747-3758 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:37 year:2002 number:17 month:09 pages:3747-3758 https://doi.org/10.1023/A:1016577728915 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 37 2002 17 09 3747-3758 |
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10.1023/A:1016577728915 doi (DE-627)OLC2046276183 (DE-He213)A:1016577728915-p DE-627 ger DE-627 rakwb eng 670 VZ Sciti, D. verfasserin aut Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders 2002 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Kluwer Academic Publishers 2002 Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. Oxygen Enrichment Densification Test Densification Rate Pressureless Sinter Al2O3 Powder Vicens, J. aut Bellosi, A. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 37(2002), 17 vom: Sept., Seite 3747-3758 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:37 year:2002 number:17 month:09 pages:3747-3758 https://doi.org/10.1023/A:1016577728915 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4319 GBV_ILN_4323 AR 37 2002 17 09 3747-3758 |
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Microstructure and properties of alumina-SiC nanocomposites prepared from ultrafine powders |
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Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. © Kluwer Academic Publishers 2002 |
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Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. © Kluwer Academic Publishers 2002 |
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Abstract Alumina-Silicon Carbide nanocomposites were produced and studied under different aspects: characteristics of the starting materials, processing, microstructure and mechanical properties. The raw materials were two kinds of fine SiC powders (30 and 45 nm) and two $ Al_{2} $$ O_{3} $ powders (60 and 140 nm). Different compositions (amounts of SiC in the range 0.5–5 vol%) were performed and the characteristics of the resulting materials compared. The oxygen enrichment in SiC nanopowder due to specific powder treatments was controlled, in order to optimize powder processing routes. Densification tests of $ Al_{2} $$ O_{3} $-SiC powder mixtures were performed both by pressureless sintering and hot pressing route. The addition of SiC reduced the densification rate and favoured a refinement of the matrix. Improvement of mechanical properties over monolithic alumina was obtained in composites with the 45 nm SiC. The study pointed out that the critical factor for the success of these materials is the choice of the raw SiC powders in terms of grain size and state of agglomeration. The addition of this ultrafine SiC strongly affected the microstructural evolution, even at low volumetric fractions. The results do not substantiate any remarkable effect by dispersoids in the tested nanosize range. © Kluwer Academic Publishers 2002 |
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