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放電等離子燒結(jié)制備醫(yī)用多孔鋅鎂合金的孔隙特征和力學行為
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太原理工大學 材料科學與工程學院

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中圖分類號:

TG146.2+ 3

基金項目:

國家自然科學基金項目（面上項目No.?51305292）;山西省自然科學基金（No. 201801D221081）


Pore Characteristics and Mechanical Behavior of spark plasma sintered porous Zn-Mg alloy for Biomedical Applications
Author:
Affiliation:

College of Materials Science and Engineering, Taiyuan University of Technology

Fund Project:

National Natural Science Foundation of China (Grant No.?51305292） and Shanxi province Natural Science Foundation of China (Grant No. 201801D221081)

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    摘要:

    采用放電等離子燒結(jié)技術(shù)制備多孔Zn-Mg合金探討了Mg含量對多孔合金孔隙特征和力學性能的影響,并分析了多孔Zn-Mg合金的斷裂失效機制。結(jié)果表明,在造孔劑 (NaCl) 體積分數(shù)固定前提下當Mg含量從5 wt.%增加至15 wt.%,由于在去除造孔劑的過程中去合金化作用,孔隙率從40.3 %提升至54.3 %,表面開孔直徑從289 μm增加到384 μm。力學測試結(jié)果表明,多孔Zn-Mg合金為一種彈脆性多孔材料；三種組分中多孔Zn-10Mg合金力學性能最好,其強度與彈性模量均能滿足作為承受低載荷松質(zhì)骨的需求。

    Abstract:

    In this study, porous Zn-xMg alloy scaffolds (x=5,10 and 15 wt.%) were fabricated as bone tissue engineering scaffold by spark plasma sintering (SPS) using same volume content space holder (NaCl). The effect of content of Mg on the mechanical properties, microstructural characterizations of the porous Zn-xMg alloys scaffold were revealed. Results showed that with increasing content of Mg, the porosity increased from 40.3% to 54.3% and the mean open pore size increased from 289 μm to 384 μm due to the dealloying effect of Mg. Mechanical tests results showed that porous Zn-Mg alloy was a typical elastic-brittle metallic foam and porous Zn-10Mg was best among three scaffolds. The strength and elastic module of the scaffolds showed good biomechanical compatibility and had the promising to be used as a lower load-bearing implant material.

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崔澤琴,李偉健,馬麗莉,楊蕊鴻,宮殿清.放電等離子燒結(jié)制備醫(yī)用多孔鋅鎂合金的孔隙特征和力學行為[J].稀有金屬材料與工程,2020,49(5):1576~1582.[Cui Zeqin, Li Weijian, Ma Lili, Yang Ruihong, Gong Dianqing. Pore Characteristics and Mechanical Behavior of spark plasma sintered porous Zn-Mg alloy for Biomedical Applications[J]. Rare Metal Materials and Engineering,2020,49(5):1576~1582.]
DOI：10.12442/j. issn.1002-185X. E20190003

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  • 收稿日期:2019-01-07
  • 最后修改日期:2019-02-26
  • 錄用日期:2019-03-15
  • 在線發(fā)布日期: 2020-06-05
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