Preparation of Ti/HA Gradient Composites by Centrifugation-Gelcasting Technology AITranslate
Abstract AITranslate
Ti/HA gradient composites were prepared by centrifugation-gelcasting technology.The effects of solid contents and Ti contents on viscosity of Ti/HA slurries were studied.The effects of initiator and catalyst contents on initial solidification time of the slurries were analyzed.The density was measured of different segments of green Ti/HA composites prepared with different centrifugal rotation speed and time and slurry solid contents,in order to study the mass separation phenomenon of Ti and HA particles during centrifugal forming.The microstructure of different segments of sintered compacts was observed by SEM,and their bending strength and fracture toughness were measured.Ti/HA slurry with 50% solid and 7% Ti has viscosity of 232.1 mPa·s.With 1.2% initiator and 0.9% catalyst,the initial solidification time of Ti/HA slurry is 10 min.When the above slurry is centrifuged at 1000 r/min for 10 min,the green compact has good density gradient.When the above green compact is sintered at 1000℃ for 2h,the obtained Ti/HA composite has good gradient distribution of Ti particles,and its bending strength and fracture toughness are 82.2 MPa and 1.71 MPa·m^1/2,increased by 153% and 116% over pure HA material.
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Basic Information:
DOI：
Chinese Library Classification Number:TB333[一般工业技术—材料科学与工程]
Citation Information:
Ti/HA gradient composites were prepared by centrifugation-gelcasting technology.The effects of solid contents and Ti contents on viscosity of Ti/HA slurries were studied.The effects of initiator and catalyst contents on initial solidification time of the slurries were analyzed.The density was measured of different segments of green Ti/HA composites prepared with different centrifugal rotation speed and time and slurry solid contents,in order to study the mass separation phenomenon of Ti and HA particles during centrifugal forming.The microstructure of different segments of sintered compacts was observed by SEM,and their bending strength and fracture toughness were measured.Ti/HA slurry with 50% solid and 7% Ti has viscosity of 232.1 mPa·s.With 1.2% initiator and 0.9% catalyst,the initial solidification time of Ti/HA slurry is 10 min.When the above slurry is centrifuged at 1000 r/min for 10 min,the green compact has good density gradient.When the above green compact is sintered at 1000℃ for 2h,the obtained Ti/HA composite has good gradient distribution of Ti particles,and its bending strength and fracture toughness are 82.2 MPa and 1.71 MPa·m^1/2,increased by 153% and 116% over pure HA material.
quote
| GB/T 7714-2015 | [1] GUO Yu-jia, YU Jing-yuan, ZHAO Te, et al. Preparation of Ti/HA Gradient Composites by Centrifugation-Gelcasting Technology[J]. Rare Metals and Cemented Carbides, 2019(6): 42-47. |
| MLA | [1] GUO Yu-jia, et al., "Preparation of Ti/HA Gradient Composites by Centrifugation-Gelcasting Technology." Rare Metals and Cemented Carbides, no. 6, 2019, pp. 42-47. |
| APA | [1] GUO Yu-jia, YU Jing-yuan, ZHAO Te, CHEN Ming-hua, LI Qiang, & SUN Xu-dong. (2019). Preparation of Ti/HA Gradient Composites by Centrifugation-Gelcasting Technology. Rare Metals and Cemented Carbides(6), 42-47. |
| IEEE | [1] GUO Yu-jia, YU Jing-yuan, ZHAO Te, CHEN Ming-hua, LI Qiang, and SUN Xu-dong, "Preparation of Ti/HA Gradient Composites by Centrifugation-Gelcasting Technology," Rare Metals and Cemented Carbides, no. 6, pp. 42-47, 2019. keywords: {gradient composite;Ti/HA;centrifugation-gelcasting;slurry characteristic;mechanical property} |