An Ultrasonic Sensor for Process Modeling and Proces Control of Ceramic Superconductors

  • Eva Drescher-Krasicka
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


This research demonstrates the feasibility of utilizing nondestructive ultrasonic sensors to monitor the effects of oxygen content, processing time and temperature on the resultant mechanical, structural, and electrical properties of high temperature ceramic superconductors. Ultrasonic velocity changes, as a function of processing time and temperature, have clearly been shown to indicate the transformation between orthorhombic and tetragonal phases in Y-Ba-Cu-O.


Tetragonal Phase Lithium Niobate Ultrasonic Velocity Ultrasonic Sensor High Temperature Experiment 
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    Wong-Ng et al., J. Mat. Res., 3. 882 (1988).Google Scholar
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    E. Drescher-Krasicka, and H. T. Yolken, Res. Nond. Eval. to be published.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Eva Drescher-Krasicka
    • 1
    • 2
  1. 1.Metallurgy DivisionNational Institute of Standards and TechnologyGaithersburgUSA
  2. 2.The Johns Hopkins UniversityBaltimoreUSA

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