Thermal Plasma Spraying as a New Approach for Preparation of Zinc Biodegradable Scaffolds: A Complex Material Characterization

被引：15

作者：

Capek, Jaroslav ^{[1
]}

Pinc, Jan ^{[1
,2
]}

Msallamova, Sarka ^{[2
]}

Jablonska, Eva ^{[3
]}

Vertat, Petr ^{[1
]}

Kubasek, Jiri ^{[2
]}

Vojtech, Dalibor ^{[2
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Vvi, Na Slovance 1999-2, Prague 18221 8, Czech Republic

[2] Univ Chem & Technol Prague, Dept Met & Corros Engn, Tech 5, Prague 16628 6, Czech Republic

[3] Univ Chem & Technol Prague, Dept Biochem & Microbiol, Tech 5, Prague 16628 6, Czech Republic

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2019年 / 28卷 / 04期

关键词：

biodegradable zinc; corrosion; mechanical properties; microstructure; thermal plasma spraying; IN-VITRO BIODEGRADATION; POROUS MAGNESIUM; MECHANICAL-PROPERTIES; CORROSION; CYTOTOXICITY; BIOMATERIALS; ALLOYS; DEGRADATION; STENT; TI;

D O I：

10.1007/s11666-019-00849-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Zinc based materials have been studied as candidates for the fabrication of biodegradable implants. For applications in orthopedics, porous materials with reduced modulus of elasticity are desirable. Fabrication of porous zinc is challenging due to several processing difficulties, such as low melting point, easy evaporation and high reactivity with many porogen agents. In this work, we prepared a porous zinc sheet by thermal plasma spraying with a porosity of 16.8%. Mechanical, corrosion and biological characteristics of the prepared material were studied in detail. The porous zinc possessed reduced moduli of elasticity (2-6GPa) and relatively high values of strengths (12-55MPadepending on the loading mode). The corrosion rate of the porous zinc was approximately 0.1mm/a, and the extracts showed excellent murine L929 cell viability. The results suggest that thermal plasma spraying is usable for preparation of biodegradable porous zinc scaffolds.

引用

页码：826 / 841

页数：16

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