Manufacturing and Characterization of Zn-WC as Potential Biodegradable Material

被引：14

作者：

Guan, Zeyi ^{[1
]}

Pan, Shuaihang ^{[1
]}

Linsley, Chase ^{[2
]}

Li, Xiaochun ^{[1
,3
]}

机构：

[1] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Sch Engn, 405 Westwood Plaza, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Bioengn, Sch Engn, 405 Westwood Plaza, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Dept Mat Sci & Engn, Sch Engn, 405 Westwood Plaza, Los Angeles, CA 90095 USA

来源：

47TH SME NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE (NAMRC 47) | 2019年 / 34卷

基金：

美国国家科学基金会;

关键词：

Metal matrix nanocomposite; zinc; biodegradable metal; bioresorbable stent; stength and ductility; CORROSION BEHAVIOR; BIOCOMPATIBILITY; MAGNESIUM; ALLOYS; MG;

D O I：

10.1016/j.promfg.2019.06.146

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work presents the manufacturing and characterization of zinc-tungsten carbide (Zn-WC) nanocomposite as a potential biodegradable material. A highly homogeneous WC nanoparticle dispersion in a Zn matrix was achieved by molten salt assisted stir casting followed with hot rolling. The Vickers microhardness and ultimate tensile strength of zinc were enhanced more than 50% and 87%, respectively, with the incorporation of up to 4.4 vol. % WC nanoparticles. Additionally, Zn-WC nanocomposite retained high ductility (> 65%). However, the electrical and thermal conductivities were reduced by 12% and 21%, respectively. The significant enhancement in mechanical strength makes nanoparticle-reinforced zinc a promising candidate material for biodegradable metallic implants for a wide range of clinical applications, including orthopaedic and cardiovascular implants as well as bioresorbable electronics. (C) 2019 The Authors. Published by Elsevier B.V.

引用

页码：247 / 251

页数：5

共 24 条

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