- Fabrication of Ultra Fine β-phase Ti-Nb-Sn-HA Composite by Pulse Current Activated Sintering
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Kee-Do Woo, Xiaopeng Wang, Duck-Soo Kang, Sang-Hyuk Kim, Jeong-Nam Woo, Sang-Hoon Park, Zhiguang Liuc
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J Korean Powder Metall Inst. 2010;17(6):443-448.
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DOI: https://doi.org/10.4150/KPMI.2010.17.6.443
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- The beta phase Ti-Nb-Sn-HA bio materials were successfully fabricated by high energy mechanical milling and pulse current activated sintering (PCAS). Ti-6Al-4V ELI alloy has been widely used as biomaterial. But the Al has been inducing Alzheimer disease and V is classified as toxic element. In this study, ultra fine sized Ti-Nb-Sn-HA powder was produced by high energy mechanical milling machine. The beta phase Ti-Nb-Sn-HA powders were obtained after 12hr milling from alpha phase. And ultra fine grain sized Ti-Nb-Sn-HA composites could be fabricated using PCAS without grain growth. After sintering, the microstructures and phase-transformation of Ti-Nb-Sn-HA biomaterials were analyzed by scanning electron microscope (SEM) and X-ray diffraction (XRD). The relative density was obtained by Archimedes principle and the hardness was measured by Vickers hardness tester. The beta-Ti phase was obtained after 12h milling. As result of hardness and relative density, 12h milled Ti-Nb-Sn-HA composite has the highest values.
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Citations
Citations to this article as recorded by  - Microstructure and Biocompatibility of Ti-Nb-Si-HA Composites Fabricated by Rapid Sintering Using HEMM Powders
ee-Do Woo K, 상혁 김, 동수 강, ong-Gun Kim D
Korean Journal of Materials Research.2013; 23(7): 353~358. CrossRef
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