生物形态木质陶瓷的摩擦学性能研究

采用甘蔗渣浸渍环氧树脂后真空烧结制备生物形态木质陶瓷.研究了木质陶瓷的孔径分布及孔隙度,采用摩擦磨损试验机评价了木质陶瓷在干摩擦状态下的摩擦学性能,分析了木质陶瓷磨损后的表面形貌,简要讨论了木质陶瓷的磨损机理.研究表明：木质陶瓷的磨损机理主要以磨粒磨损和黏着磨损共同作用.木质陶瓷能够在磨损表面形成1层碳膜,具有良好的自润滑作用.甘蔗渣含量较高时,孔隙度较大,摩擦系数较大,磨损率较高,木质陶瓷的磨损主要表现为严重磨粒磨损,磨损表面无法形成碳膜.

Tribological Properties of Biomorphic Woodceramics

Biomorphic woodceramics were prepared from bagasse powders impregnated with epoxy resin followed by sintering in vacuum. The pore size distribution and total porosity of the woodceramics were measured. The tribological properties were evaluated using the friction and wear tester under dry sliding condition. The morphology of the worn surfaces of the woodceramics was analyzed using scanning electron microscopy. The wear mechanism of the woodceramics was discussed briefly. The results show that the wear mechanisms of woodceramics were abrasive wear and adhesive wear. The carbon membrane generated on the worn surface, was self-lubricating. When the content of the bagasse increased, the porosity, friction coefficient and wear rate increased. The wear mechanism of the woodceramics was severe abrasive wear. And the carbon membrane was not formed on the worn surface.