지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수
초록· 키워드
오류제보하기
Purpose: This study was performed to investigate mechanical properties of the porous Ti implants according to porosity. Porous Ti implant will be had properties similar to human bone such as microstructure and mechanical properties. Methods: Porous Ti implant samples were fabricated by sintering of spherical Ti powders(below $25{\mu}m$, $25{\sim}32{\mu}m$, $32{\sim}38{\mu}m$, and $38{\sim}45{\mu}m$) in a high vacuum furnace. Specimen's diameter and height were 4mm and 40 mm. Surface and sectional images of porous Ti implants were evaluated by scanning electron microscope(SEM). Porosity and average pore size were evaluated by mercury porosimeter. Young's modulus and tensile strength were evaluated by universal testing machine(UTM). Results: Porosity of Implant was increased according to larger particle size of the powder. Boundary portions of particles are sintered fully and others portions were formed pore. Young's modulus was decreased by formed porous structure. Tensile strength was decreased according to larger the particle size of the powder, but higher than human bone. Conclusion: If prepared by adjust the porosity of the porous Ti implant will be able to resolve the stress shielding phenomenon.
목차
등록된 정보가 없습니다.
참고문헌 (10)
참고문헌 신청
Lee J / 2010 / Evaluation of implants coated with rhBMP-2 using two different coating strategies: a critical-size supraalveolar peri-implant defect study in dogs / J Clin Periodontol 37:582~590
Long M / 1998 / Titanium alloy in total joint replacement-a materials science perspective / Biomaterials 19:1621~1639
Nishiguchi S / 2001 / Titanium metals form direct bonding to bone after alkali and heat treatments / Biomaterials 22:2525~2533
Jo YJ / 2007 / Mechanical properties of fully porous and porous-surfaced Ti-6Al-4V implants fabricated by electro-discharge-sintering / Journal of Materials Processing Technology 194:121~125
Oh IH / 2002 / Microstructures and Mechanical Properties of Porous Titanium Compacts Prepared by Powder Sintering / Materials Transactions 43(3):443~446
Long M / 1998 / Titanium alloy in total joint replacement-a materials science perspective / Biomaterials 19:1621~1639
Nishiguchi S / 2001 / Titanium metals form direct bonding to bone after alkali and heat treatments / Biomaterials 22:2525~2533
Jo YJ / 2007 / Mechanical properties of fully porous and porous-surfaced Ti-6Al-4V implants fabricated by electro-discharge-sintering / Journal of Materials Processing Technology 194:121~125
Oh IH / 2002 / Microstructures and Mechanical Properties of Porous Titanium Compacts Prepared by Powder Sintering / Materials Transactions 43(3):443~446
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