|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
||Investigation of Single- mode Microwave Coupling in SiC-TiB2 Materials
||Michael Kornecki, Selva Vennila Raju, Victoria Blair, Nicholas Ku, Raymond Brennan
|On-Site Speaker (Planned)
The electromagnetic nature of microwaves can be exploited by designing a resonant cavity to produce a standing wave in the sample chamber. This “single-mode” is characterized by spatial zones in which the magnetic and electric field components of the microwave decouple, leading to regions where the field ratios vary from a minimum to a maximum. This decoupling enables an investigation into the interaction between wave components and the materials of interest. In this study, mixtures of TiB2 and SiC, nominally an electrical conductor and insulator, were prepared in varying proportions and exposed to regions of different magnetic/electric field ratios in a 2.45 GHz single-mode microwave system. Possible energy loss mechanisms will be examined by analyzing AC susceptibility measurements performed on a Physical Property Measurement System before and after sintering. The corresponding data and phase analysis will be correlated to processing parameters and physical properties of the samples studied.