赵美玲,罗来马,李浩,伍枝正,张延召,吴玉程

• 1:合肥工业大学材料科学与工程学院
• 2:安徽省有色金属材料与加工工程实验室

摘要(Abstract)：

采用化学活化预处理对Ti C粉体进行镀前预处理,预处理后通过化学镀制备Ni-W包覆Ti C复合粉体,再将2%Ni-W包覆Ti C复合粉体与W粉混合,采用不同压力压制后烧结获得了W-Ni/Ti C复合材料。通过扫描电子显微镜(SEM)和能谱分析仪(EDS)观察和分析了Ti C陶瓷粉体预处理前后形貌、包覆后复合粉体的形貌和成分、以及不同压力压制W-Ni/Ti C烧结体形貌和成分,探讨了Ni-W包覆Ti C复合粉体和W-Ni/Ti C复合材料形成过程,压制压力对烧结体的影响规律。结果表明,化学镀方法能够制备Ni-W包覆Ti C复合粉体,粉体包覆均匀性良好,所获得的W-Ni/Ti C复合材料与相同工艺下烧结的纯钨相比具有较好的致密性,且随着压制压力的增大,致密性更高。

关键词(KeyWords)： Ni-W包覆Ti C复合粉体;W-Ni/Ti C复合材料;化学镀;粉末冶金法

Abstract:

Keywords:

基金项目(Foundation): 国家大学生创新项目(201210359013);; 国际热核聚变实验堆(ITER)计划专项(2014GB121001);; 中央高校基本科研业务费专项资金(2012HGQC0032);

作者(Author): 赵美玲,罗来马,李浩,伍枝正,张延召,吴玉程

DOI: 10.13289/j.issn.1009-6264.2015.s1.002

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