TiO_(2)含量对Al_(2)O_(3)基绝缘涂层综合性能的影响  

Influence of TiO_(2) Content on Comprehensive Properties of Al_(2)O_(3)-Based Insulation Coatings

作　　者：杨明奇[1,2,3] 孟思远 奚强 李凯[4] 安宁 YANG Mingqi;MENG Siyuan;XI Qiang;LI Kai;AN Ning(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang 471039,China;China International Science and Technology Cooperation Base for Digitization Design of High Performance Bearings,Luoyang 471039,China;Henan Key Laboratory of High Performance Bearing Technology,Luoyang 471039,China;Zhejiang Wanxiang Precision Industry Co.,Ltd.,Hangzhou 311202,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]高性能轴承数字化设计国家国际科技合作基地,河南洛阳471039 [3]河南省高性能轴承技术重点实验室,河南洛阳471039 [4]浙江万向精工有限公司,杭州311202

出　　处：《轴承》2024年第6期59-62,共4页Bearing

摘　　要：在GCr15轴承钢的基体材料上制备了不同TiO_(2)含量的Al_(2)O_(3)基绝缘涂层,研究了TiO_(2)含量对Al_(2)O_(3)基绝缘涂层性能的影响,结果表明:孔隙率基本随着TiO_(2)含量的增加而增大;结合力随着TiO_(2)含量的增加先增大后基本不变,TiO_(2)含量为1.5%左右达到峰值;TiO_(2)含量越高,耐冲击性能越好;随着TiO_(2)含量的增加,高温、常湿和常温、高湿环境下涂层绝缘电阻均呈先升高后降低的趋势,TiO_(2)含量为1.5%左右达到峰值。对绝缘涂层进行封孔处理,试验结果表明,封孔处理可以显著提高涂层的结合力、环境适应性、抗冲击性能。TiO_(2)含量为1.5%~3.0%时的涂层在未封孔和封孔后均具备较好的综合性能。Al_(2)O_(3)-based insulation coatings with different TiO_(2) content are prepared on substrate of GCr15 bearing steel,and the influence of TiO_(2) content on properties of the coatings is studied.The results show that the porosity basically increases with the increase of TiO_(2 )content;with the increase of TiO_(2) content,the adhesion increases first and then remains basically unchanged,reaching a peak value when the TiO_(2) content is about 1.5%;the higher the TiO_(2) content,the better the impact resistance;with the increase of TiO_(2) content,the insulation resistance of the coatings increases first and then decreases under high temperature,normal humidity,normal temperature and high humidity environment,reaching a peak value when the TiO_(2) content is about 1.5%.The sealing treatment is applied to the coatings;the test results show that the adhesion,environmental adaptability and impact resistance of the coatings are improved significantly after sealing.The coatings with TiO_(2) content of 1.5%~3.0%have better comprehensive properties before and after sealing.

关 键 词：滚动轴承 氧化物陶瓷 陶瓷涂层 孔隙率 结合力 绝缘电阻 封孔 

分 类 号：TH133.33[机械工程—机械制造及自动化] TQ174.12[化学工程—陶瓷工业]