Ceramic Bearing Development, Vol 2. Development of Surface Acoustic Wave NDE for Silicon Nitride Balls.

Abstract

The Major Objective of the Development of a Surface Acoustic Wave Nondestructive Evaluation (NDE) Technique for Silicon Nitride Balls was to improve hybrid bearing reliability by the elimination of critical size flaws that cause early failures. A Surface Acoustic Wave NDE technique was developed for Norton Advanced Ceramics NBD-200 silicon nitride balls. System performance was verified on balls with both natural and artificial flaws. A production lot of NBD-200 balls was tested using this method. The production lot was sorted for fatigue testing at 2.9 MPa (420 KSI) contact stress at The Timken Co. Results suggest that the technique can readily identify certain life limiting flaws. However, fatigue testing of balls inspected with this technique showed no improvement in reliability.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1995
Accession Number
ADA317379

Entities

People

  • Butrus T. Khuri-yakub
  • Charles Burk
  • Chunk-kao P. Hseith

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Acousto-Optic Modulators
  • Ceramic Materials
  • Climate Change
  • Detectors
  • Doppler Effect
  • Elastic Waves
  • Materials
  • Measurement
  • Rayleigh Waves
  • Secondary Waves
  • Surface Acoustic Waves
  • Surface Waves
  • Technical Ceramics
  • Transducers
  • Ultrasounds

Readers

  • Reinforced Composite Materials
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).