On the possibility of microwave applications in the powder processing and testing of selected tungsten compounds

J. Pfeifer, B. A. Kiss, P. Tekula-Buxbaum, K. Vadasdi

Research output: Contribution to journalArticle

1 Citation (Scopus)


Starting materials for tungsten production (APT, AMT, WO3·H2O, and stoichiometric and substoichiometric dehydrated deammoniated powders) have been treated with microwave power. The increase in temperature has been registered. Time-temperature plots have been recorded. The temperature slopes in the room-temperature range have been compared with room-temperature dielectric-loss data at microwave frequencies. Some perspectives of microwave powder processing and test methods based on the varying microwave-transparency (dielectric-loss factor) of the materials involved are shown. The microwave calcination of APT is demonstrated. Dehydration process can easily be followed.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalInternational Journal of Refractory Metals and Hard Materials
Issue number1
Publication statusPublished - Jan 1 1993


ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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