QUANTITATIVE-DETERMINATION OF THROUGH-COATING POROSITY IN THIN CERAMIC PHYSICALLY VAPOR-DEPOSITED COATINGS

被引：29

作者：

CELIS, JP

DREES, D

MAESEN, E

ROOS, JR

机构：

[1] Department Metaalkunde en Toegepaste Materiaalkunde, Katholieke Universiteit Leuven, B-3001 Leuwen

来源：

THIN SOLID FILMS | 1993年 / 224卷 / 01期

关键词：

Coatings - Porous materials - Titanium compounds - Vapor deposition;

D O I：

10.1016/0040-6090(93)90458-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An experimental method is proposed to determine in a quantitative way the through-coating porosity of thin ceramic coatings deposited on metallic substrates. The method is based on a coulometric measurement performed during potentiodynamic polarization of a coated sample. Since coating and substrate materials may interact electrochemically, a standard addition procedure to derive the porosity index has been worked out. The porosity of different TiN-based physically vapour-deposited coatings has been compared. The porosity values obtained are more realistic in comparison with those obtained by other methods.

引用

页码：58 / 62

页数：5

共 8 条

[1] ELECTROCHEMICAL METHOD TO EVALUATE THE CONNECTED POROSITY IN CERAMIC COATINGS [J].