用仿金刚石碳精粉涂层提高喷射织机钢筘的耐磨性

喷射织机钢筘的磨损问题，直接影响到织机效率、织物品质、生产成本一直是纺器和织造业关注的热点，本文介绍日本用仿金刚石石炭精粉涂层，使筘齿的硬度量值超过２０００以上，用加速试验机作磨损试验，证明其耐磨性比没有涂层的上同筘齿原料，提高了１００倍以上。所以，这种涂层技术的应用交圾益于纺器和织造业。     

Preparation and Properties of Sintering Additives Coated Si3N4 from Heterogeneous Nucleation Processing

The sintering additives such as Al2O3 and /or Y2O3 were coated on the surfaces of Si3N4 particles via heterogeneous nucleation processing using a buffered pH solution as the precipitation reagent .They nucleated and grew only on the surfaces of Si3N4 and did not form sol particles in solution by TEM observation .The isoelectric point(IEP) of coated Si3N4 was different from that of as-received Si3N4.The IEP of Al(OH)3-coated Si3N4 occurred at pH8.4, which is close to that of alumina .When Al(OH)3-coated Si3N4 particles were coated with Y(OH)3,the IEP of coated Si3N4 powder shifted from pH8.4 to pH9.2 ,similar to that of yttria.In addition ,the rheological data showed that Al2O3 and /or Y2O3 coated Si3N4 suspension is nearly Newtonian and that added Si3N4 suspension shows a shear rate thinning behavior.     

高温润滑涂层设计的系统考虑

航天、航空、核能等尖端技术迫切要求使用耐高温润滑涂层，以保护金属构件的表面，增加发动机、推进器的工作效率和输出功率，８０年代国际摩擦学界根据工业和国防的需要将高温润滑涂层和耐磨材料定为摩擦学学科发展的重要研究方向之一。本文对高温润滑涂层设计中遇到的典型环境、涉及到的关键问题、未来发展的途径等问题作了阐述。     

氰化钛基新涂层

近年来,研制出了一种以氰化钛基,即氮碳化钛(TiCN)基的新涂层,例如氰化钛锆(Ti,Zr)CN、氰化钛铝(Ti,Al)CN和氰化钛硅(Ti,Si)CN等涂层材料,它们可使刀具耐用度有明显的增加。     

聚氨酯涂层膜的微结构和性能——添加剂的效能

本文进行了在聚氨酯涂层剂中加入不同添加剂时对聚氨酯膜的微结构和拉伸、顶破、吸湿、透湿各项性能的影响研究，并同时给出在聚氨酯涂层剂中混入几种添加剂时聚氨酯膜的性能随混入量的不同而改变的情况。     

粉末涂层抗冲击缺陷分析

讨论了粉末静电涂装中出现的涂层抗冲击试验缺陷，通过设计实验寻找造成该缺陷的原因，揭示了产生涂层起皱和脱离基材的原因是钢板与磷化液之间的匹配性差。通过提高磷化液的游离酸酸度解决了该问题。从理论上推出了游离酸与附着力之间可能的关系：游离酸影响磷化膜与基材的结合力，或影响形成的磷化膜的形态。