|About this Abstract
||Materials Science & Technology 2017
||Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
||A Study of Heavy Clay Body Properties for Hybrid Microwave Firing
||Garth Vivian Tayler, Mike Anderson, Mike Hamlyn
|On-Site Speaker (Planned)
||Garth Vivian Tayler
The paper reports on research work carried out in the ESCOM, TRI Laboratories in Johannesburg, South Africa, in collaboration with the Microwave Processing Group Laboratories, at the School of Engineering and Advanced Technology, Staffordshire University, England. Mineralogical, thermal, chemical and physical analyses were carried out on the raw materials and body compositions that were used in the research work. A suitable carbon additive was used to alter the dielectric properties of the test bodies. Dielectric property measurements on these heavy clay bodies, using the cavity perturbation technique, provided data for the selection of optimum body compositions to be used for microwave test firings. The carbon added to the bodies was in the form of carbon flyash (CFA). The resultant increase in complex permittivity improved the efficiency of microwave coupling. The outcome of this research work was the identification of the Microwave Autogenous Firing (MWAF) mechanism; a mechanism which made it possible for firing cycles to be dramatically reduced.