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[1]段柏华a,b,张钊a,等.微波烧结工艺对6%Al2O3/Mo复合材料结构和性能的影响[J].有色金属科学与工程,2019,(04):59-65.[doi:10.13264/j.cnki.ysjskx.2019.04.010]
 DUAN Bohuaa,b,ZHANG Zhaoa,et al.Effect of microwave sintering on microstructure and properties of 6% Al2O3/Mo composite material[J].,2019,(04):59-65.[doi:10.13264/j.cnki.ysjskx.2019.04.010]
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微波烧结工艺对6%Al2O3/Mo复合材料结构和性能的影响(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2019年04期
页码:
59-65
栏目:
出版日期:
2019-07-20

文章信息/Info

Title:
Effect of microwave sintering on microstructure and properties of 6% Al2O3/Mo composite material
文章编号:
1674-9669(2019)04-0059-07
作者:
段柏华ab 张钊a 杨栋林a 王德志ab
(中南大学, a. 材料科学与工程学院; b. 有色金属材料科学与工程教育部重点实验室, 长沙 410083)
Author(s):
DUAN Bohuaab ZHANG Zhaoa YANG Donglina WANG Dezhiab
(a. School of Materials Science and Engineering; b. Key Laboratory of Nonferrous Materials Science and Engineering, Ministry of Education, Central South University, Changsha 410083, China)
关键词:
微波烧结A2O3/Mo复合材料动力学烧结激活能
分类号:
TF124.5;TB331
DOI:
10.13264/j.cnki.ysjskx.2019.04.010
文献标志码:
A
摘要:
以溶胶凝胶法制备的6% Al2O3/Mo复合粉末为原料,采用微波烧结技术制备了6% Al2O3/Mo复合材料. 研究了微波烧结温度及烧结时间对复合材料的结构及性能的影响,并探讨了复合粉末的微波烧结动力学. 结果表明:溶胶凝胶法制备的6% Al2O3/Mo复合粉末形貌呈平滑多边形和近球形;Al2O3/Mo复合材料的致密度及硬度均随着微波烧结温度及烧结时间的增加而增加;1 600 ℃下烧结30 min的6% Al2O3的复合材料致密度及硬度达到98.1%和2.969 GPa. Al2O3/Mo复合粉体微波烧结的致密化机制是体积扩散和晶界扩散共同作用结果,且随烧结温度升高,体积扩散逐渐占据主导地位,其微波烧结激活能在1 500~1 600 ℃范围内为201.93 kJ/mol. 研究结果显示微波烧结是一种快速制备高致密Al2O3/Mo复合材料的有效方法.

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相似文献/References:

[1]影响.微波烧结工艺对6%Al2O3/Mo复合材料结构和性能的影响[J].有色金属科学与工程,2019,(04):47.
 DUAN Bohuaa,b,ZHANG Zhaoa,et al.Effect of microwave sintering on microstructure and properties of 6% Al2O3/Mo composites[J].,2019,(04):47.

备注/Memo

备注/Memo:
收稿日期:2019-03-29
基金项目:国家重点研发计划资助项目(2017YFB0305601)
通信作者:段柏华(1972- ),男,博士,教授,主要从事纳米粉体制备与粉末冶金、稀有难熔金属材料加工、多孔材料、金属基复合材料及电子封装材料等方面的研究工作,E-mail: duan-bh@csu.edu.cn.
更新日期/Last Update: 2019-08-22