Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Characteristics of Porous Titanium Fabricated by Space-holder Method using NaCl

NaCl을 Space holder로 이용한 타이타늄 다공체의 특성

  • Son, Byoung-Hwi (Special Alloys Group, Korea Institute of Materials Science) ;
  • Hong, Jae-Geun (Special Alloys Group, Korea Institute of Materials Science) ;
  • Hyun, Yong-Taek (Special Alloys Group, Korea Institute of Materials Science) ;
  • Kim, Seung-Eon (Special Alloys Group, Korea Institute of Materials Science) ;
  • Bae, Seok-Choun (Department of Advanced Materials Engineering, Keimyung University)
  • 손병휘 (재료연구소(KIMS) 특수합금연구그룹) ;
  • 홍재근 (재료연구소(KIMS) 특수합금연구그룹) ;
  • 현용택 (재료연구소(KIMS) 특수합금연구그룹) ;
  • 김승언 (재료연구소(KIMS) 특수합금연구그룹) ;
  • 배석천 (계명대학교 신소재공학과)
  • Received : 2011.07.28
  • Accepted : 2011.10.03
  • Published : 2011.12.28
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Abstract

This study was performed to fabricate the porous titanium foam by space holder method using NaCl powder, and to evaluate the effect of NaCl volume fractions (33.3~66.6 vol.%) on the porosities, compressive strength, Young's modulus and permeability. For controlling pore size, CP titanium and NaCl particles were sieved to different size range of 70~150 ${\mu}m$ and 300~425 ${\mu}m$ respectively. NaCl of green Ti compact was removed in water followed by sintered at $1200^{\circ}C$ for 2 hours. Total porosities of titanium foam were in the range of 38-70%. Pore shape was a regular hexahedron similar that of NaCl shape. Porous Ti body showed that Young's modulus and compressive strength were in the range of 0.6-6 GPa and 8-127 MPa respectively. It showed that pore size and mechanical properties of Ti foams was controllable by NaCl size and volume fractions.

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