- Microstructure and Mechanical Properties of Nano-sized Ti-35%Nb-7%Zr-10%CPP Composite Fabricated by Pulse Current Activated Sintering
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Kee-Do Woo, Duck-Soo Kang, Sang-Hyuk Kim, Sang-Hoon Park, Ji-Young Kim, Hye-Rim Ko
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J Korean Powder Metall Inst. 2011;18(2):188-195.
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DOI: https://doi.org/10.4150/KPMI.2011.18.2.188
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- The aim of this study was to investigate microstructures and mechanical properties of nano-sized Ti-35 wt.%Nb-7 wt.%Zr-10 wt.%CPP composite fabricated by high energy mechanical milling (HEMM) and pulse current activated sintering (PCAS). Grain growth of the mechanically milled powder was prevented by performing PCAS. The principal advantages of calcium phosphate materials include: similarity in composition to the bone mineral, bioactivity, osteoconductivity and ability to form a uniquely strong interface with bone. The hardness and wear resistance property of nano-sized Ti-35 wt.%Nb-7 wt.%Zr-10 wt.%CPP composites increased with increasing milling time because of decreased grain-size of sintered composites.
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Citations
Citations to this article as recorded by  - Microstructure and Mechanical Properties of Ti-35Nb-7Zr-XCPP Biomaterials Fabricated by Rapid Sintering
기도 우, 상훈 박, 지영 김, 상미 김, 민호 이
Korean Journal of Materials Research.2012; 22(3): 150~154. CrossRef
- 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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