杨植富,唐思文,张浩,刘骞,吕峥

• 1:湖南科技大学机械设备健康维护湖南省重点实验室
• 2:深海深地矿产资源开发技术与装备教育部工程研究中心
• 3:湖南科技大学高温耐磨材料及制备技术湖南省国防科技重点实验室

摘要(Abstract)：

以NbC粉末和Ni粉末为原料，采用微波烧结技术制备了NbC-10 vol%Ni金属陶瓷，研究烧结温度和保温时间对NbC-10 vol%Ni金属陶瓷组织与力学性能的影响。结果表明：采用微波加热烧结可以在较短时间内获得组织均匀细小且完全致密的NbC-10 vol%Ni金属陶瓷材料。随着烧结温度的升高和保温时间的延长，NbC-10 vol%Ni金属陶瓷的断裂韧性和弯曲强度呈现先升高后降低的趋势。在1390℃保温15 min时NbC-10 vol%Ni金属陶瓷具有较高的综合力学性能，其弯曲强度、维氏硬度与断裂韧性分别为1139 MPa、1119 HV30和12.5 MPa·m~(1/2)。

关键词(KeyWords)： NbC-Ni;金属陶瓷;微波烧结;微观组织;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52275424,52075168);; 湖南省自然科学基金(2020JJ4308);; 湖南省教育厅科学研究项目(18B230);; 湖南科技大学卓越学子计划;; 广西制造系统与先进制造技术重点实验室开放基金(22-35-4-S009)

作者(Author): 杨植富,唐思文,张浩,刘骞,吕峥

DOI: 10.13289/j.issn.1009-6264.2022-0251

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