Accession Number : AD0816014

Title :   A CRITICAL SURVEY OF CHARACTERIZATION OF PARTICULATE CERAMIC RAW MATERIALS.

Descriptive Note : Final technical rept. Jun 65-May 67,

Corporate Author : CALIFORNIA UNIV BERKELEY OFFICE OF RESEARCH SERVICES

Personal Author(s) : Stover, Edward R.

Report Date : MAY 1967

Pagination or Media Count : 99

Abstract : Needs and opportunities for improved characterization of powders and suspensions in ceramic processing were evaluated by review of the literature, written survey, and by group discussion and private communications with over 500 ceramists and scientists concerned with powders. It quickly became apparent that the present status of characterization as it is relevant to ceramic processing is extremely low. At present, for virtually all ceramic processing operations, there are no established relationships linking raw material characteristics to process variables. Furthermore, in many cases the important characteristics have not even been defined. Specific areas where such information is needed are discussed in the report. A simple method for a general fundamental description of composition and structure in complex materials is suggested and applied by example to particulate ceramic materials. The current capabilities for evaluating the significant characteristics have been reviewed. It is concluded that general relationships between particle characteristics and process mechanisms must be sought, since even complete description of all characteristics of the material cannot otherwise be expected to lead to significantly improved process and product control. (Author)

Descriptors :   (*CERAMIC MATERIALS, PROCESSING), POWDERS, RELIABILITY, IMPURITIES, SURFACE PROPERTIES, HEAT TREATMENT, CHEMICAL ANALYSIS.

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE