Community Research and Development Information Service - CORDIS

Abstract

The effectiveness of the following CVD coatings as permeation barriers has been investigated: TiC (1 to 2 micron in thickness); a bi-layer of TiN on TiC (3 micron total thickness) and CVD Al(2)O(3) on a TiN/TiC bi-layer. The substrate materials were TZM (a Mo alloy) and 316L stainless steel in the form of discs of diameter 48 mm and thickness 0.1 or 1 mm. Permeation measurements were performed in the temperature range 515-742 K using deuterium at pressures in the range 1-50 kPa. CVD layers were shown to form reasonably effective permeation barriers. At a temperature of 673 K TiC is around 6000 times less permeable to deuterium than 316L stainless steel.

Additional information

Authors: FORCEY K S, JRC Ispra (IT);PERUJO A, JRC Ispra (IT);REITER F, JRC Ispra (IT);LOLLI-CERONI P L, JRC Ispra (IT)
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 200 (1993) pp. 417-420
Record Number: 199310928 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en