|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 TiB<SUB>2</SUB> 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.