한국재료학회지 (Korean Journal of Materials Research)

  • 제23권7호
  • /
  • Pages.353-358
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  • 2013
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  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
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Microstructure and Biocompatibility of Ti-Nb-Si-HA Composites Fabricated by Rapid Sintering Using HEMM Powders

  • Woo, Kee-Do (Division of Advanced Materials Engineering, Research Center of Advanced Materials Development(RCAMD), Chonbuk National University) ;
  • Kim, Sang-Hyuk (Chonbuk National University) ;
  • Kang, Dong-Soo (Chonbuk National University) ;
  • Kim, Dong-Gun (Chonbuk National University)
  • 투고 : 2013.05.10
  • 심사 : 2013.06.27
  • 발행 : 2013.07.27
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초록

To improve coating ability and the life of the coating, Ti based composite materials with hydroxyapatite(HA) should be developed. The raw materials of Ti-26wt%, Nb-1wt%, and Si with 10wt% HA were mixed for 24 h by a mixing machine and milled for 1 h to 6 h by planetary mechanical ball milling. Ti-26%Nb-1%Si-(10%HA) composites, composed of nontoxic elements, were fabricated successfully by spark plasma sintering(SPS) at $1000^{\circ}C$ under 70MPa. The relative density of the sintered Ti-Nb-Si-HA composites using the 24 h mixed powder, and the 6 h milled powder, was 91% and 97 %, respectively. The effects of HA contents and milling time on microstructure and mechanical properties were investigated by SEM and hardness tester, respectively. The Vickers hardness of the composites increased with increasing milling time and higher HA content. The Young's modulus of the sintered Ti-26%Nb-1%Si-10%HA composite using the 6 h-milled powder was 55.6 GPa, as obtained by compression test. Corrosion resistance of the Ti-26wt%Nb-1wt%Si composite was increased by milling and by the addition of 10wt%HA. Wear resistance was improved with increasing milling time. Biocompatibility of the Ti-Nb-Si alloys was improved by the addition of HA.

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피인용 문헌

  1. Microstructure and Mechanical Properties of Nano-Carbon Reinforced Titanium Matrix/Hydroxyapatite Biocomposites Prepared by Spark Plasma Sintering vol.8, pp.9, 2018, https://doi.org/10.3390/nano8090729
  2. Research Progress Regarding Interfacial Characteristics and the Strengthening Mechanisms of Titanium Alloy/Hydroxyapatite Composites vol.11, pp.8, 2018, https://doi.org/10.3390/ma11081391