{"title":"Ellipsometric study of passive films on the stainless steel SS304","authors":"S. Phadnis, M. Totlani, D. Bhattacharya","doi":"10.1080/00202967.1998.11871232","DOIUrl":null,"url":null,"abstract":"Four surface treatments were given to AISI 304 SS in the cold-worked and heat-treated condition. The surface treatments were: exposure to laboratory air, exposure to 20% HNO 3 , anodization in H 2 SO 4 with and without dissolved oxygen. Passive films thus obtained were characterised ellipsometrically and the refractive index and thickness values were measured. It was seen that the refractive index of films obtained in all cases except one was around 2.52, while in the case of the film obtained after anodization in H 2 SO 4 with dissolved oxygen, it was seen to be 2.46. The thickness of films varied from 46 to 129 A depending on the surface treatment. Heat-treatment appeared to have little effect on the type of film formed.","PeriodicalId":23268,"journal":{"name":"Transactions of The Institute of Metal Finishing","volume":"76 1","pages":"235-237"},"PeriodicalIF":1.2000,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00202967.1998.11871232","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of The Institute of Metal Finishing","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/00202967.1998.11871232","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 7
Abstract
Four surface treatments were given to AISI 304 SS in the cold-worked and heat-treated condition. The surface treatments were: exposure to laboratory air, exposure to 20% HNO 3 , anodization in H 2 SO 4 with and without dissolved oxygen. Passive films thus obtained were characterised ellipsometrically and the refractive index and thickness values were measured. It was seen that the refractive index of films obtained in all cases except one was around 2.52, while in the case of the film obtained after anodization in H 2 SO 4 with dissolved oxygen, it was seen to be 2.46. The thickness of films varied from 46 to 129 A depending on the surface treatment. Heat-treatment appeared to have little effect on the type of film formed.
期刊介绍：
Transactions of the Institute of Metal Finishing provides international peer-reviewed coverage of all aspects of surface finishing and surface engineering, from fundamental research to in-service applications. The coverage is principally concerned with the application of surface engineering and coating technologies to enhance the properties of engineering components and assemblies. These techniques include electroplating and electroless plating and their pre- and post-treatments, thus embracing all cleaning pickling and chemical conversion processes, and also complementary processes such as anodising. Increasingly, other processes are becoming important particularly regarding surface profile, texture, opacity, contact integrity, etc.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
