碳化钨模仁表面沉积Re-Ir抗高温黏连涂层研究  

Antistick Re-Ir Protective Coating Deposited on WC Mould Substrate

作　　者：魏俊俊[1] 朱小研 陈良贤[1] 刘金龙[1] 黑立富[1] 李成明[1] 

机构地区：[1]北京科技大学,北京100083

出　　处：《稀有金属材料与工程》2016年第1期227-231,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51272024);中央高校基本科研业务费(FRF-TP-14-094A2);教育部博士点基金(20110006110011)

摘　　要：采用射频磁控溅射技术,在WC模仁基材表面分别生长Re、Ir单层膜及Re/Ir复合多层膜3种膜系。通过扫描电子显微镜、表面轮廓仪、X射线衍射仪以及纳米压痕仪等对所制备涂层的表面形貌、结构以及涂层力学性能进行表征,同时采用高温润湿角测量仪结合常用的镜头玻璃硝材D-ZK3与模仁进行高温浸润测试。结果表明,涂覆3种膜系后模仁力学性能及抗玻璃高温黏连性能都得到了明显改善,且Re/Ir多层膜系综合性能优于Re和Ir单层膜系,在延续基材表面精度的同时,较大幅度地提高了模仁表面硬度及弹性模量,高温状态下与玻璃硝材浸润性明显减弱,接触界面未观察到元素互扩散现象,显示良好的应用前景。Re, Ir monolayer and Re/Ir multilayer were deposited on the WC substrate by RF magnetron sputtering deposition system. SEM, XRD, Nano Indenter and contour graph were used to characterize the protective coatings. The wetting angle at high temperature was adopted to evaluate the sticking situation between mould and D-ZK3 glass. The results demonstrate that the mechanical property and antistick performance of the mould after coating are both improved significantly. Re/Ir multilayer shows the best antistick capability as well as mechanical property among these three types of coating. Meanwhile, the glass with Re/Ir multilayer coating after wetting contact test still have high transparency, which demonstrate that almost no interfacial reaction between glass gob and protective coating happens. This study displays a promising application of Re/Ir multilayer protective coating in glass moulding technology.

关 键 词：铼 铱 硬质合金 玻璃模造 高温润湿 

分 类 号：TG174.4[金属学及工艺—金属表面处理]