%0 Journal Article
%T Effect of Nanometer Lanthanum Fluoride as Filler on the Tribological Behavior and Corrosion Resistance of Polyimide Boned Solid Lubricating Coating<br>纳米LaF3微粒对聚酰亚胺粘结固体润滑涂层摩擦学性能及抗腐蚀性能的影响
%A ZHOU Hui-di
%A YUE Mei-e
%A CHEN Jian-min
%A YE Yin-ping of Chemical Physics
%A Chinese Academy of sciences
%A Lanzhou
%A China
%A <br>周惠娣
%A 岳美娥
%A 陈建敏
%A 冶银平
%J 摩擦学学报
%D 2004
%I 
%X The tribological behavior of polyimide (PI) boned solid lubricating coatings filled with nanometer lanthanum fluoride (LaF_3) sliding against SAE2100 steel was examined on an MHK-500 friction and wear tester, using the PI-based coating without nano-LaF_3 as a control. The corrosion resistance of the coatings was evaluated according to GB 10125-88. Thus the effect of nano-LaF_3 as the filler on the antiwear ability and corrosion resistance of the coatings was highlighted. It was found that the coating with l%~2% nano-LaF_3 showed the best antiwear ability, but it recorded a friction coefficient almost the same as that of the coating without the nano-LaF_3 filler. Moreover, the incorporation of 2% nano-LaF_3 filler led to a significant increase in the corrosion resistance of the coating, and the corrosion resistance of the PI-based bonded solid lubricating coatings were related to the water contact angles. Namely, the PI-based coating containing 4% nano-LaF_3 had a smaller water contact angle, which corresponded to the poorer corrosion resistance of the coating. The improvement in the wear resistance and corrosion resistance of the PI-based bonded solid lubricating coatings by the incorporation of the nano-LaF_3 filler was attributed to the strengthened interfacial bonding among the nano filler and the polymeric matrix and various other fillers. However, the PI-based coating of a too high mass fraction of the nano filler had increased surface and interface defects, which led to the worsening of the wear resistance and corrosion resistance of the coating.
%K polyimide
%K nano-LaF_3
%K bonded solid lubricating coating
%K tribological behavior
%K corrosion resistance<br>聚酰亚胺
%K 纳米三氟化镧
%K 粘结固体润滑涂层
%K 摩擦学性能
%K 抗腐蚀性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=2F467A5C6371C830162AAA01D7DAD07A&aid=18289456E3E3FB69&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=38B194292C032A66&sid=4966445AEEBA9556&eid=F8035C8B7D8A4264&journal_id=1004-0595&journal_name=摩擦学学报&referenced_num=10&reference_num=7