Accession Number : ADA136729

Title :   Stress Corrosion of Ceramic Materials.

Descriptive Note : Annual rept. 1 Oct 82-30 Sep 83,

Corporate Author : NATIONAL BUREAU OF STANDARDS WASHINGTON D C INORGANIC MATERIALS DIV*

Personal Author(s) : Freiman,S W ; Lawn,B R ; White,G S ; Gonzalez,A C ; Cook,R F

PDF Url : ADA136729

Report Date : 01 Nov 1983

Pagination or Media Count : 150

Abstract : The molecular model for crack growth in Si02 has been extended to other materials. An electrostatic model for crack growth has been developed to explain high velocity behavior in silicate glasses. Effects of internal stresses in ferroelectric barium titanate have been demonstrated. Indentation fracture studies have been initiated on multilayer capacitors in order to correlate crack-like defects with electrical failures.

Descriptors :   *Ceramic materials, *Stress corrosion, Fracture(Mechanics), Crack propagation, Mechanical properties, Fused silica, Ferroelectric materials, Glass, Electrostatics, Barium titanates, Failure(Electronics)

Subject Categories : Ceramics, Refractories and Glass
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE