Microwave and conventional sintering of premixed and prealloyed tungsten heavy alloys

A. Mondal, A. Upadhyaya, D. Agrawal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

Microwave sintering is fundamentally different from conventional sintering. In the microwave sintering process, the material is heated internally and volumetrically unlike in a conventional process where heat originates from an external heating source. Sintering cycle time for microwave sintering is much shorter as compared with the conventional sintering cycle. The rapid heating rate of microwave sintering greatly restricts tungsten grain coarsening, which resulted in fine tungsten grains distributed in Ni-Cu matrix. The aim of the present investigation is to study the sintering behavior of premixed and prealloyed 90W-7Ni-3Cu powders in both microwave and conventional furnaces. A comparative analysis has been made based on the sintered density, densification parameter, hardness and microstructures of the samples. The present investigation also includes the variation of matrix composition as a function of temperature by EPMA analysis.

Original languageEnglish (US)
Title of host publicationMaterials Science and Technology Conference and Exhibition MS and T'08
Pages2502-2515
Number of pages14
StatePublished - Dec 1 2008
EventMaterials Science and Technology Conference and Exhibition, MS and T'08 - Pittsburgh, PA, United States
Duration: Oct 5 2008Oct 9 2008

Publication series

NameMaterials Science and Technology Conference and Exhibition, MS and T'08
Volume4

Other

OtherMaterials Science and Technology Conference and Exhibition, MS and T'08
CountryUnited States
CityPittsburgh, PA
Period10/5/0810/9/08

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials

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    Mondal, A., Upadhyaya, A., & Agrawal, D. (2008). Microwave and conventional sintering of premixed and prealloyed tungsten heavy alloys. In Materials Science and Technology Conference and Exhibition MS and T'08 (pp. 2502-2515). (Materials Science and Technology Conference and Exhibition, MS and T'08; Vol. 4).