Accession Number : ADA293637
Title : Non Destructive Evaluation of Ceramic Bearings.
Descriptive Note : Rept. for 21 Dec 92-4 May 94,
Corporate Author : QUATRO CORP ALBUQUERQUE NM
Personal Author(s) : Rhodes, George W.
PDF Url : ADA293637
Report Date : 04 FEB 1994
Pagination or Media Count : 71
Abstract : Through a phase II SBIR MICOM funded Quatro to evaluate the Resonant Ultrasound Spectroscopy (RUS) techniques to ceramic bearings, specifically those made with Si3N4. The light weight, high temperature and hardness attributes of this material are well known, but a concern exists regarding their manufacturablity, quality and failure mechanisms. The determination of surface and near surface flaws is an operational problem which has hindered the acceptance of this material into widespread commercial applications. Before RUS no non-destructive inspection technique was able to rapidly and reliably find all the manufacturing flaws which could be present in this material and their location relative to the surface. jg p. 4
Descriptors : *NONDESTRUCTIVE TESTING, *CERAMIC MATERIALS, *RESONANCE, *BEARINGS, TEST AND EVALUATION, MANUFACTURING, SPECTROSCOPY, HIGH TEMPERATURE, FAILURE, SURFACES, DEFECTS(MATERIALS), ULTRASONICS, INSPECTION, SOUND, LIGHTWEIGHT, HARDNESS, SILICON NITRIDES.
Subject Categories : Machinery and Tools
Ceramics, Refractories and Glass
Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE