Failure and acoustic-emission response of plasma-sprayed ZrO2-8 wt% Y2O3 coatings

Journal Article · Wed Sep 01 04:00:00 EDT 1982 · Ceram. Eng. Sci. Proc.; (United States)

DOI:https://doi.org/10.1002/9780470318782.ch30· OSTI ID:5945836

Shankar, N R; Berndt, C C; Herman, H

An acoustic emission (AE) examination was conducted for the failure of ZrO2-8 wt% Y2O3 plasma-sprayed coatings incorporated in a tensile-adhesion test arrangement. The AE generated during failure is related to the cracking process, and both are in turn related to fracture morphology. The production of AE count rate distribution changes by heat treatment of the coating may be interpreted in terms of the morphological features of the coating. Insight into the adhesion mechanism of plasma-sprayed coatings is gained through the study of the relationship of the bond strength test results to AE and fracture behavior.

• Research Organization: State Univ. of New York, Stony Brook
• OSTI ID: 5945836
• Journal Information: Ceram. Eng. Sci. Proc.; (United States), Journal Name: Ceram. Eng. Sci. Proc.; (United States) Vol. 3; ISSN CESPD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ACOUSTIC TESTING
ADHESION
CHALCOGENIDES
COATINGS
CRACK PROPAGATION
FRACTURE PROPERTIES
HEAT TREATMENTS
MATERIALS TESTING
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
SPRAYED COATINGS
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES