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Title: Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment

Abstract

An aluminum nitride piezoelectric ultrasonic transducer successfully operates at temperatures of up to 1000.degree. C. and fast (>1 MeV) neutron fluencies of more than 10.sup.18 n/cm.sup.2. The transducer comprises a transparent, nitrogen rich aluminum nitride (AlN) crystal wafer that is coupled to an aluminum cylinder for pulse-echo measurements. The transducer has the capability to measure in situ gamma heating within the core of a nuclear reactor.

Inventors:
; ; ;
Issue Date:
Research Org.:
Bechtel Marine Propulsion Corporation, West Mifflin, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1248874
Patent Number(s):
9,322,720
Application Number:
14/186,244
Assignee:
U.S. Department of Energy (Washington, DC) PNRO
DOE Contract Number:  
NR0000031
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Feb 21
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 36 MATERIALS SCIENCE; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Wernsman, Bernard R., Blasi, Raymond J., Tittman, Bernhard R., and Parks, David A. Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment. United States: N. p., 2016. Web.
Wernsman, Bernard R., Blasi, Raymond J., Tittman, Bernhard R., & Parks, David A. Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment. United States.
Wernsman, Bernard R., Blasi, Raymond J., Tittman, Bernhard R., and Parks, David A. Tue . "Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment". United States. https://www.osti.gov/servlets/purl/1248874.
@article{osti_1248874,
title = {Use of aluminum nitride to obtain temperature measurements in a high temperature and high radiation environment},
author = {Wernsman, Bernard R. and Blasi, Raymond J. and Tittman, Bernhard R. and Parks, David A.},
abstractNote = {An aluminum nitride piezoelectric ultrasonic transducer successfully operates at temperatures of up to 1000.degree. C. and fast (>1 MeV) neutron fluencies of more than 10.sup.18 n/cm.sup.2. The transducer comprises a transparent, nitrogen rich aluminum nitride (AlN) crystal wafer that is coupled to an aluminum cylinder for pulse-echo measurements. The transducer has the capability to measure in situ gamma heating within the core of a nuclear reactor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}

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