Mechanical properties of CNT reinforced hybrid functionally graded materials for bioimplants

被引：23

作者：

Hussain, M. Asif ^{[1
]}

Maqbool, Adnan ^{[1
,2
]}

Khalid, F. Ahmad ^{[1
]}

Bakhsh, Nabi ^{[1
]}

Hussain, Ali ^{[2
]}

Rahman, Jamil Ur ^{[2
]}

Park, Jong Kyu ^{[2
]}

Park, Tae Gone ^{[2
]}

Hyun, Lee Jae ^{[2
]}

Kim, Myong Ho ^{[2
]}

机构：

[1] GIK Inst Engn Sci & Technol, Fac Mat Sci & Engn, Topi, Kpk, Pakistan

[2] Changwon Natl Univ, Engn Res Ctr Integrated Mechatron Mat & Component, Gyeongnam 641773, South Korea

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2014年 / 24卷

基金：

新加坡国家研究基金会;

关键词：

functionally graded materials; hydroxyapatite; nanocomposites; biomaterial; implant; STAINLESS-STEEL; IN-VITRO; HYDROXYAPATITE; CORROSION; BIOMATERIALS; TEMPERATURE; FABRICATION; COMPOSITES; COATINGS; BEHAVIOR;

D O I：

10.1016/S1003-6326(14)63293-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The hybrid functionally graded materials (FGM) of hydroxyapatite (HA), stainless steel 316L (SS316L) and carbon nanotubes (CNT) were synthesized for biomedical implants. Three different types of FGM were produced by the combination of SS316L and CNT to reinforce HA in discrete layers of FGM. In the first type of FGM, concentration of SS316L was varied from 10% to 40% (mass fraction) with an increment of 10% to reinforce micro HA. In the second type of FGM, 0.5% (mass fraction) functionalized CNT was added by maintaining the rest of composition as that of the first type of FGM. In the third type of FGM, mixture of micro and nano HA (mass ratio1:1) was used, keeping rest of composition similar to the second type of FGM. All types of FGM were subjected to uniaxial compaction and sintered by pressureless sintering technique at similar compaction and sintering parameters. The results show that the densification is enhanced with the addition of CNT and nanocrystalline HA in the FGM. Hardness and fracture toughness increase in both FGM reinforced with CNT, but the increase of the hardness and fracture toughness are more pronounced in FGM with micro and nanocrystalline HA.

引用

页码：S90 / S98

页数：9

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