MgF_2镀膜对 ZrF_4-BaF_2-AlF_3-YF_3系统玻璃耐侯性的影响  

EFFECTS OF MgF_2 COATING ON THE WEATHERABILITIES OF ZrF_4-BaF_2-AIF_3-YF_3 GLASS

作　　者：向卫东[1] 梁晓娟[2] 陶瑛[2] 王承遇[2] 黄杏源[2] 

机构地区：[1]浙江大学 [2]大连轻工业学院

出　　处：《材料科学进展》1993年第2期138-142,共5页

摘　　要：本文采用红外透射光谱、红外反射光谱、扫描电子显微镜、X 射线能量色散谱仪等方法研究了表面蒸镀 MgF_2镀膜对 ZBAY 系统玻璃耐风化性能的影响,并对该玻璃试样风化侵蚀机理和水化侵蚀机理进行了比较。实验结果表明:ZBAY 系统玻璃的风化侵蚀机理和水化侵蚀机理并不完全相同。ZBAY系统玻璃在较强的风化条件下和较强的水化条件下发生严重的侵蚀。而 MgF_2镀膜能够有效地改善ZBAY 系统玻璃的耐风化和耐水侵蚀性能。The weatherabilities of ZBAY glass coated and uncoated with MgF_2 film wereinvestigated by using IRTS,IRRS,SEM and EDAX,comparing the corrosion resulting fromweathering with that resulting from water solution,Experimental results found that their cor-rosion mechanisms are different.ZBAY glasses uncoated with MgF_2 film were corroded seri-ously under the weathering conditions,which adversely affected their optical,mechanicaland chemical properties.It is very interesting that MgF_2 coating can improve theweatherabilities of ZBAY glases effectively.And their infrared transmission properties can betherefore protected.MgF_2 coating as one of the best coating materials can widely be used forfluoride glass,especially for fluoride glass fiber.

关 键 词：玻璃 镀膜 风化 

分 类 号：TQ171.734[化学工程—玻璃工业]