Accession Number : ADP007776

Title :   Surface Modification of Sodium Aluminosilicate Glasses Using Microwave Energy

Corporate Author : FLORIDA UNIV GAINESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s) : Fathi, Z ; Ahmad, I ; Simmons, J H ; Clark, D E ; Loding, A R ; Crow, J E

PDF Url : ADP007776

Report Date : 27 Apr 1992

Pagination or Media Count : 8

Abstract : Microwave energy has been used in ion exchange reactions for four sodium-aluminosilicate compositions. The exchangeable cation in the glass sodium (+) was replaced at the surface by a larger atomic radii cation Potassium (+). Secondary ion mass spectroscopy (SIMS), electron microprobe analysis (EMP) and x-ray mapping were used to evaluate the effect of microwave heating on the extent and rate of ion exchange in comparison to conventional heating.

Descriptors :   *CERAMIC MATERIALS, *GLASS, *ION EXCHANGE, *MICROWAVES, ATOMIC STRUCTURE, BRITTLENESS, CATIONS, COMPARISON, DIELECTRIC PROPERTIES, ELECTRONS, ENERGY, EXCHANGE REACTIONS, FAILURE(MECHANICS), HEATING, IONS, LOSSES, MASS SPECTROSCOPY, MICROPROBES, SODIUM, SPECTROSCOPY, STRENGTH(MECHANICS), SURFACES, SYMPOSIA, X RAYS

Subject Categories : Ceramics, Refractories and Glass
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE