吴吉文,颜建辉,汪异,邱敬文

• 1:湖南科技大学机电工程学院
• 2: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
• 3:湖南科技大学材料科学与工程学院

摘要(Abstract)：

为了研究ZrO_2(Y_2O_3)含量对Mo-12Si-8.5B-ZrO_2(Y_2O_3)复合材料高温氧化性能的影响，利用机械合金化与放电等离子烧结制备了ZrO_2(Y_2O_3)含量为0～10 mass%的Mo-12Si-8.5B-ZrO_2(Y_2O_3)复合材料，研究了其在800、1000和1200℃下的高温氧化行为。结果表明：复合材料在800℃时均发生显著氧化，质量损失持续增加；随着ZrO_2(Y_2O_3)含量的增加，氧化质量损失速度降低，复合材料的抗氧化能力提升；低ZrO_2(Y_2O_3)含量(0～2.5 mass%)的复合材料在1000和1200℃下具备优异的抗氧化性；高ZrO_2(Y_2O_3)含量(5～10 mass%)的复合材料在1000℃下氧化严重，在1200℃发生灾难性氧化。

关键词(KeyWords)： Mo-12Si-8.5B-ZrO_2(Y_2O_3)复合材料;ZrSiO_4;高温氧化;硼硅玻璃相

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52175167);; 河南科技大学高端轴承摩擦学技术与应用国家地方联合工程实验室开放基金资助(202203);; 湖南省教育厅项目(22C0259)

作者(Author): 吴吉文,颜建辉,汪异,邱敬文

DOI: 10.13289/j.issn.1009-6264.2022-0637

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