张巍,张杰

• 1:中国科学院金属研究所沈阳材料科学国家研究中心
• 2:沈阳工业大学材料科学与工程学院

摘要(Abstract)：

为了研究烧结助剂种类对B_4C陶瓷摩擦学性能的影响，以B_4C微粉为原料，分别添加4种不同种类的烧结助剂(炭黑、SiC、Al_2O_3和Al_2O_3-Y_2O_3),采用热压烧结工艺制备B_4C陶瓷，研究了添加不同种类烧结助剂的B_4C陶瓷与SiC对磨球在干滑动条件下的摩擦与磨损行为。结果表明，在本试验条件下，添加Al_2O_3烧结助剂的B_4C陶瓷(B_4C(Al_2O_3))和对应的SiC对磨球具有最光滑的磨损表面，B_4C(Al_2O_3)/SiC摩擦副表现出最低的摩擦系数，B_4C(Al_2O_3)陶瓷表现出最低的磨损率。添加炭黑、SiC和Al_2O_3烧结助剂的B_4C陶瓷的磨损机理主要为晶粒断裂，而添加Al_2O_3-Y_2O_3烧结助剂的B_4C陶瓷的磨损机理主要为晶粒拔出。

关键词(KeyWords)： B_4C陶瓷;烧结助剂;摩擦;磨损;晶粒

Abstract:

Keywords:

基金项目(Foundation): 辽宁省自然科学基金(2022-MS-013);; 中国科学院金属研究所自主部署项目(E255L401);; 沈阳材料科学国家研究中心青年人才项目(E21SL412)

作者(Author): 张巍,张杰

DOI: 10.13289/j.issn.1009-6264.2024-0093

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