摘要
利用原子力显微镜和纳米力学性能测试仪研究了室温及不同湿度环境下,氧化硼表面上硼酸的形成规律,分析了表面形貌、表面力学性能及微观磨损特性.研究表明,氧化硼表面生成硼酸时,体积发生膨胀,硼酸的形成受环境湿度的影响,而氧化硼的微观磨损率与硼酸的生长速度呈对应关系,硼酸的生长使氧化硼表面软化,强度降低.
Nanoscale tribological and mechanical properties of boric
acid were studied by Atomic Force Microscopy (AFM) and Nanomechanical Testing System. The
surface morphology, mechanical properties, and wear properties of boric acid on bulk boron
oxide substrates in air at room temperature and various relative humidity ( RH ) were
examined. It is shown that the growth of boric acid film is dependent on RH , and the growth
rate of H 3BO 3 correlates with the micro wear rate of B 2O 3. The surface of B 2O 3 became
soft with the growth of boric acid film.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
1999年第2期97-101,共5页
Tribology
基金
中国留学基金会资助