Location

La Jolla, CA

Start Date

1980 12:00 AM

Description

High frequency acoustic imaging represents a powerful technique for the nondestructive evaluation of optically opaque materials. In this report the Scanning Laser Acoustic Microscope (SLAM) is used to detect and characterize flaws in ceramics. SLAM micrographs showing typical examples of cracks, laminar flaws, porosity and solid inclusions. are presented. The various flaw types are easily differentiated on the basis of their characteristic acoustic signatures. The importance of an imaging approach to the nondestructive evaluation of ceramics is demonstrated.

Book Title

Proceedings of the ARPA/AFML Review of Progress in Quantitative NDE

Chapter

15. Failure Modes, Defect Characterization, and Accept/Reject Criteria

Pages

678-682

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Differentiation of Various Flaw Types in Ceramics Using the Scanning Laser Acoustic Microscope

La Jolla, CA

High frequency acoustic imaging represents a powerful technique for the nondestructive evaluation of optically opaque materials. In this report the Scanning Laser Acoustic Microscope (SLAM) is used to detect and characterize flaws in ceramics. SLAM micrographs showing typical examples of cracks, laminar flaws, porosity and solid inclusions. are presented. The various flaw types are easily differentiated on the basis of their characteristic acoustic signatures. The importance of an imaging approach to the nondestructive evaluation of ceramics is demonstrated.