Accession Number : AD0700392

Title :   EVALUATION OF THE FUSION CASTING PROCESS FOR CERAMIC MATERIALS.

Descriptive Note : Final rept.,

Corporate Author : RUTGERS - THE STATE UNIV NEW BRUNSWICK N J SCHOOL OF CERAMICS

Personal Author(s) : Bauer,William H. ; LaBar,Richard G. ; Matolka,Robert W. ; Palko,Joseph E.

Report Date : 01 SEP 1969

Pagination or Media Count : 143

Abstract : Using Al2O3 as the study material, an evaluation of the fusion casting process for structural ceramic materials was conducted. The investigation into the improvement of structural soundness in castings of high alumina compositions included a study of furnace and mold design, melt conditions, chemical additions, vibrational casting, and heat extraction. Evaluation was made by microscopic observations, mechanical damping capacity measurements and strength testing. Structurally sound fused-cast alumina resulted from utilization of the most suitable system of process controls and furnace design in conjunction with optimum grain refinement and intergranular bonding, development of metastable solid solutions and strengthening by precipitation of solute rich phases. (Author)

Descriptors :   (*CASTING, *CERAMIC MATERIALS), (*ALUMINA, CASTING), STRUCTURAL PROPERTIES, MICROSTRUCTURE, COOLING, SOLID SOLUTIONS, DISPERSION HARDENING

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE