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Title: Study of methods for automated crack inspection of electrically poled piezoelectric ceramics.

Abstract

The goal of this project was to identify a viable, non-destructive methodology for the detection of cracks in electrically poled piezoelectric ceramics used in neutron generator power supply units. The following methods were investigated: Impedance Spectroscopy, Scanning Acoustic Microscopy, Lock-in Thermography, Photo-acoustic Microscopy, and Scanned Vicinal Light. In addition to the exploration of these techniques for crack detection, special consideration was given to the feasibility of integrating these approaches to the Automatic Visual Inspection System (AVIS) that was developed for mapping defects such as chips, pits and voids in piezoelectric ceramic components. Scanned Vicinal Light was shown to be the most effective method of automatically detecting and quantifying cracks in ceramic components. This method is also very effective for crack detection in other translucent ceramics.

Authors:
; ; ;
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
919173
Report Number(s):
SAND2004-1934
TRN: US0807328
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; DEFECTS; DETECTION; NEUTRON GENERATORS; NONDESTRUCTIVE TESTING; CRACKS; Piezoelectric materials.; Ceramic materials-Testing.

Citation Formats

Yang, Pin, Hwang, Stephen C., Jokiel, Bernhard, Jr., and Burns, George Robert. Study of methods for automated crack inspection of electrically poled piezoelectric ceramics.. United States: N. p., 2004. Web. doi:10.2172/919173.
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Yang, Pin, Hwang, Stephen C., Jokiel, Bernhard, Jr., & Burns, George Robert. Study of methods for automated crack inspection of electrically poled piezoelectric ceramics.. United States. doi:10.2172/919173.
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Yang, Pin, Hwang, Stephen C., Jokiel, Bernhard, Jr., and Burns, George Robert. Tue . "Study of methods for automated crack inspection of electrically poled piezoelectric ceramics.". United States. doi:10.2172/919173. https://www.osti.gov/servlets/purl/919173.
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@article{osti_919173,
title = {Study of methods for automated crack inspection of electrically poled piezoelectric ceramics.},
author = {Yang, Pin and Hwang, Stephen C. and Jokiel, Bernhard, Jr. and Burns, George Robert},
abstractNote = {The goal of this project was to identify a viable, non-destructive methodology for the detection of cracks in electrically poled piezoelectric ceramics used in neutron generator power supply units. The following methods were investigated: Impedance Spectroscopy, Scanning Acoustic Microscopy, Lock-in Thermography, Photo-acoustic Microscopy, and Scanned Vicinal Light. In addition to the exploration of these techniques for crack detection, special consideration was given to the feasibility of integrating these approaches to the Automatic Visual Inspection System (AVIS) that was developed for mapping defects such as chips, pits and voids in piezoelectric ceramic components. Scanned Vicinal Light was shown to be the most effective method of automatically detecting and quantifying cracks in ceramic components. This method is also very effective for crack detection in other translucent ceramics.},
doi = {10.2172/919173},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2004},
month = {Tue Jun 01 00:00:00 EDT 2004}
}
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Technical Report:
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DOI:  10.2172/919173
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