Fabrication and Mechanical Properties of Porous Ti/HA Composites for Bone Fixation Devices

被引：22

作者：

Nomura, Naoyuki ^{[1
]}

Sakamoto, Kozue ^{[2
]}

Takahashi, Katsuya ^{[2
]}

Kato, Seiji ^{[2
]}

Abe, Yasunori ^{[3
]}

Doi, Hisashi ^{[1
]}

Tsutsumi, Yusuke ^{[1
]}

Kobayashi, Masahiro ^{[2
]}

Kobayashi, Equo ^{[4
]}

Kim, Woo-Jong ^{[5
]}

Kim, Kyo-Han ^{[5
]}

Hanawa, Takao ^{[1
,6
]}

机构：

[1] Tokyo Med & Dent Univ, Inst Biomat & Bioengn, Tokyo 1010062, Japan

[2] Chiba Inst Technol, Fac Engn, Dept Life & Environm Sci, Tsudanuma 2750016, Japan

[3] Tokyo Med & Dent Univ, Fac Dent, Tokyo 1138510, Japan

[4] Tokyo Med & Dent Univ, Grad Sch Engn, Dept Met & Ceram Sci, Tokyo 1528552, Japan

[5] Kyungpook Natl Univ, Sch Dent, Dept Dent Biomat, Taegu, South Korea

[6] Univ Tokyo, Grad Sch Engn, Tokyo 1138650, Japan

来源：

MATERIALS TRANSACTIONS | 2010年 / 51卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

porous titanium compacts; hydroxylapatite (HA); composites; Young's modulus; DENTAL IMPLANTS; TITANIUM; HYDROXYAPATITE; ALLOYS;

D O I：

10.2320/matertrans.M2010092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Porous Ti (pTi)/hydroxylapatite (HA) composites were fabricated by an infiltration method in a vacuum and sintering. The Young's modulus of the composites was evaluated before and after the immersion in Hanks' solution. The strength of the composites was also evaluated by four-point bending test. The Young's modulus of the compacts was governed by the porosity and was comparable to the human bone in the porosity range from 24 to 34%. The Young's modulus of sintered pTi/HA composites was larger than that of pTi. The Young's modulus of the sintered pTi/HA composites decreased after immersion in Hanks' solution. The proof and bending strengths of the sintered pTi/HA composites were larger than those of pTi. Solid solution hardening of Ti by oxygen contributed the increase of the proof strength. [doi:10.2320/matertrans.M2010092]

引用

页码：1449 / 1454

页数：6

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