Accession Number : AD0775001

Title :   Glass Fracture Chemistry.

Descriptive Note : Final rept. Apr 70-Dec 73,

Corporate Author : MARTIN MARIETTA LABS BALTIMORE MD

Personal Author(s) : Westwood,Albert R. C. ; Mularie,William M. ; MacMillan,Norman H.

Report Date : DEC 1973

Pagination or Media Count : 87

Abstract : The report summarizes results of research carried out under the Contract. Topics discussed include (1) the provision of evidence for a direct correlation between environment-sensitive surface potential and the mobility of near-surface dislocations in MgO, (2) chemomechanical control of sliding friction behavior in MgO and soda lime glass, (3) the role of environment-dependent surface potential in determining the propagation behavior of sub-critical cracks in soda lime glass. Technical reports and publications resulting from this contract also are listed. (Modified author abstract)

Descriptors :   *Magnesium oxides, *Glass, *Fracture(Mechanics), Alkali glass, Hardness, Friction, Crack propagation, Surface properties, Diffusion, Activation energy

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE