UTAH UNIV SALT LAKE CITY DEPT OF ELECTRICAL ENGINEERING
Computational techniques and numerical modeling are expected to play a significant role in developing the area of microwave sintering of ceramics. There is no doubt that before the full commercial utilization of this technology, detailed understanding of the basic nature of the microwave interactions with materials as a function of frequency, geometry, and temperature must be developed. Tradeoffs between the use of single- and multi-mode cavities should be clearly understood and the shapes and sizes of ceramic samples suitable for this technology must be identified. To this end, numerical techniques may help in a wide variety of ways including modeling realistic sintering experiments, the development of a basic understanding of the physical and geometrical aspects of microwave interactions with materials, and in the development of an expert system that integrates simulation and analysis software with the developing human expertise and material data base. This paper describes roles that may be played by computational techniques and software tools in the area of sintering of ceramics. In particular, a simulation software package based on the Finite-Difference Time-Domain FDTD method will be discussed. The CAEME Computer Applications in Electromagnetics Education software for EM educationtraining will be described and the advantages of developing an expert software system that emulates humans by logically performing tasks, accessing simulation software, and by interfacing with dielectric and thermal materials data bases will be described. Example results of simulated sintering experiments in single-mode cavities are also presented.
This article is from 'Ceramic Transactions. Volume 21. Proceedings of the Symposium on Microwave Theory and Application in Materials Processing Annual Meeting of the American Ceramic Society (23rd) Held in Cincinnati, Ohio on April 29 - May 3, 1991,' AD-A253 631, p141-158.