Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications
In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive str...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Prakash, Chander [verfasserIn] |
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E-Artikel |
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| Sprache: |
Englisch |
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2020transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners - Jacobs, Jacquelyn A. ELSEVIER, 2017, JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics, Lausanne |
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| Übergeordnetes Werk: |
volume:824 ; year:2020 ; day:25 ; month:05 ; pages:0 |
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| DOI / URN: |
10.1016/j.jallcom.2020.153774 |
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ELV049426958 |
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| 520 | |a In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. | ||
| 520 | |a In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. | ||
| 650 | 7 | |a Elastic modulus |2 Elsevier | |
| 650 | 7 | |a Porous implant |2 Elsevier | |
| 650 | 7 | |a Rapid microwave sintering |2 Elsevier | |
| 650 | 7 | |a Hydroxyapatite |2 Elsevier | |
| 650 | 7 | |a Compressive strength |2 Elsevier | |
| 650 | 7 | |a Titanium composite |2 Elsevier | |
| 700 | 1 | |a Singh, Sunpreet |4 oth | |
| 700 | 1 | |a Ramakrishna, Seeram |4 oth | |
| 700 | 1 | |a Królczyk, Grzegorz |4 oth | |
| 700 | 1 | |a Le, Chi H. |4 oth | |
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10.1016/j.jallcom.2020.153774 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000916.pica (DE-627)ELV049426958 (ELSEVIER)S0925-8388(20)30137-7 DE-627 ger DE-627 rakwb eng 630 VZ Prakash, Chander verfasserin aut Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. Elastic modulus Elsevier Porous implant Elsevier Rapid microwave sintering Elsevier Hydroxyapatite Elsevier Compressive strength Elsevier Titanium composite Elsevier Singh, Sunpreet oth Ramakrishna, Seeram oth Królczyk, Grzegorz oth Le, Chi H. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:824 year:2020 day:25 month:05 pages:0 https://doi.org/10.1016/j.jallcom.2020.153774 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 824 2020 25 0525 0 |
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10.1016/j.jallcom.2020.153774 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000916.pica (DE-627)ELV049426958 (ELSEVIER)S0925-8388(20)30137-7 DE-627 ger DE-627 rakwb eng 630 VZ Prakash, Chander verfasserin aut Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. Elastic modulus Elsevier Porous implant Elsevier Rapid microwave sintering Elsevier Hydroxyapatite Elsevier Compressive strength Elsevier Titanium composite Elsevier Singh, Sunpreet oth Ramakrishna, Seeram oth Królczyk, Grzegorz oth Le, Chi H. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:824 year:2020 day:25 month:05 pages:0 https://doi.org/10.1016/j.jallcom.2020.153774 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 824 2020 25 0525 0 |
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10.1016/j.jallcom.2020.153774 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000916.pica (DE-627)ELV049426958 (ELSEVIER)S0925-8388(20)30137-7 DE-627 ger DE-627 rakwb eng 630 VZ Prakash, Chander verfasserin aut Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. Elastic modulus Elsevier Porous implant Elsevier Rapid microwave sintering Elsevier Hydroxyapatite Elsevier Compressive strength Elsevier Titanium composite Elsevier Singh, Sunpreet oth Ramakrishna, Seeram oth Królczyk, Grzegorz oth Le, Chi H. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:824 year:2020 day:25 month:05 pages:0 https://doi.org/10.1016/j.jallcom.2020.153774 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 824 2020 25 0525 0 |
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10.1016/j.jallcom.2020.153774 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000916.pica (DE-627)ELV049426958 (ELSEVIER)S0925-8388(20)30137-7 DE-627 ger DE-627 rakwb eng 630 VZ Prakash, Chander verfasserin aut Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. Elastic modulus Elsevier Porous implant Elsevier Rapid microwave sintering Elsevier Hydroxyapatite Elsevier Compressive strength Elsevier Titanium composite Elsevier Singh, Sunpreet oth Ramakrishna, Seeram oth Królczyk, Grzegorz oth Le, Chi H. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:824 year:2020 day:25 month:05 pages:0 https://doi.org/10.1016/j.jallcom.2020.153774 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 824 2020 25 0525 0 |
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10.1016/j.jallcom.2020.153774 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000000916.pica (DE-627)ELV049426958 (ELSEVIER)S0925-8388(20)30137-7 DE-627 ger DE-627 rakwb eng 630 VZ Prakash, Chander verfasserin aut Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. Elastic modulus Elsevier Porous implant Elsevier Rapid microwave sintering Elsevier Hydroxyapatite Elsevier Compressive strength Elsevier Titanium composite Elsevier Singh, Sunpreet oth Ramakrishna, Seeram oth Królczyk, Grzegorz oth Le, Chi H. oth Enthalten in Elsevier Jacobs, Jacquelyn A. ELSEVIER Factors associated with canine resource guarding behaviour in the presence of people: A cross-sectional survey of dog owners 2017 JAL : an interdisciplinary journal of materials science and solid-state chemistry and physics Lausanne (DE-627)ELV001115774 volume:824 year:2020 day:25 month:05 pages:0 https://doi.org/10.1016/j.jallcom.2020.153774 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 824 2020 25 0525 0 |
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Microwave sintering of porous Ti–Nb-HA composite with high strength and enhanced bioactivity for implant applications |
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In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. |
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In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. |
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In the present study, high order porous Ti–Nb(50-x)-HA(x) (x = 0,10,20 wt %) composites have been fabricated for orthopedic application by using powder metallurgical route consisting temporary space alloying and rapid microwave sintering process. Structural porosity, elastic modulus, compressive strength, corrosion resistance, and in-vitro bioactivity of as-sintered Ti–Nb-HA composites were studied. Results showed that the reinforcement of the HA assists in the formation of structural porosity, which reduced the elastic modulus. Porous Ti–Nb (with HA 10–20% content) composite possessed 40–60% structural porosity with a pore size of 150–260 μm and exhibited elastic modulus in the range of 12.5–29 GPa (near to human bone 8–20 GPa), which overcome the problem of stress shielding. The as-sintered composite not only possessed low elastic modulus but also exhibit high compressive strength (205–395 MPa). The alloying of HA improved the corrosion resistance and the protective efficiency of Ti–40Nb-10HA and Ti–30Nb-20HA composites was measured 40% and 72%, respectively higher than the Ti–Nb composite. In-vitro biological evaluation tests confirmed that the developed composites are non-cytotoxic and porous structure provides a vehicle for cell adhesion and growth. Moreover, various biocompatible phases such as Ca3(PO4)2 (known as TCP), Ti5P3 and CaO were developed, which helped in cell proliferation and differentiation. High biological activities were found on the Ti–30Nb-20HA composite have when compared with the Ti–Nb and Ti–40Nb-10HA composite and could be used as a potential biomaterial for the various possible orthopedic applications. |
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