Microstructure and mechanical properties of sintered porous magnesium using polymethyl methacrylate as the space holder

被引：38

作者：

Bi, Yanze ^{[1
,2
]}

Zheng, Yang ^{[1
,2
]}

Li, Yan ^{[1
,2
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Minist Educ, Key Lab Aerosp Adv Mat & Performance, Beijing 100191, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 161卷

基金：

中国国家自然科学基金;

关键词：

Magnesium; Porous materials; Powder metallurgy; PMMA; Microstructure; Mechanical properties; PMMA BONE-CEMENT; POWDER-METALLURGY; POLY(METHYL METHACRYLATE); COMPRESSIVE DEFORMATION; BEHAVIOR; ALLOYS; DEGRADATION; SCAFFOLDS; TENSILE; METALS;

D O I：

10.1016/j.matlet.2015.09.039

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Porous Mg has been prepared by powder metallurgy using spherical polymethyl methacrylate (PMMA) as the space holder. The PMMA is thoroughly decomposed and removed from the porous Mg after being sintered at 400 degrees C and then 550 degrees C. Small amount of MgO forms by the effects of decomposition products. The sintered density of porous Mg decreases from 1.72 to 1.05 g cm(-3) with increasing content of PMMA from 0% to 30%. The porosity of the porous Mg increases up to 40% with increasing content of PMMA. The ultimate compressive strength ranges between 25 and 170 MPa and decreases with increasing porosity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：583 / 586

页数：4

共 25 条

[1]

Porous magnesium/PLGA composite scaffolds for enhanced bone regeneration following tooth extraction [J].