Helium blistering of ceramic coatings on Hastelloy X and Nb--1% Zr

Journal Article · Tue Jun 01 04:00:00 EDT 1976 · Nucl. Technol.; (United States)

OSTI ID:7349492

Kaminsky, M; Das, S K; Ekern, R

The surface damage of insulating ceramic coatings on Hastelloy X and Nb--1 percent Zr held at room temperature and at 300/sup 0/C has been studied for both 100- and 250-keV helium ion irradiation for a dose range from 3.7 x 10/sup 18/ to 1 x 10/sup 19/ ions cm/sup -2/. Blisters were observed after room temperature irradiation with both 100- and 250-keV helium ions. However, for irradiation at 300/sup 0/C no blisters could be observed. The sharp rise in the helium permeation with temperature, observed by others for some glasses and ceramics, is thought to be responsible for this behavior. These results suggest that for the energy range studied, helium blistering has a negligible surface erosion effect on such coatings if they are operated at temperatures above 300/sup 0/C.

• Research Organization: Argonne National Lab., IL
• OSTI ID: 7349492
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 29:3; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals & Alloys-- Radiation Effects
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BEAMS
CERAMICS
CHROMIUM ALLOYS
COATINGS
COBALT ALLOYS
ENERGY RANGE
HASTELLOY X
HASTELLOYS
HEAT RESISTING ALLOYS
HELIUM IONS
HIGH TEMPERATURE
ION BEAMS
IRON ALLOYS
KEV RANGE
KEV RANGE 100-1000
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SWELLING
THERMONUCLEAR REACTOR MATERIALS
TUNGSTEN ALLOYS
ZIRCONIUM ALLOYS