Microstructure and flexural strength of hafnium diboride via flash and conventional spark plasma sintering

D. Demirskyi, T. S. Suzuki, S. Grasso, O. Vasylkiv

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Microstructure evolution in bulk hafnium diboride ceramics prepared by spark plasma sintering in flash regime was compared with conventional spark plasma sintering. The conventional and flash spark plasma sintering resulted in ceramics with a high relative density exceeding 96% of their theoretical density. A remarkably fine grain size distribution was noticed for the specimen prepared in the flash regime. This atypical microstructure evolution provides a possible insight into the mechanism of flash sintering for conductive bulks. The room temperature flexural strength of the hafnium diboride processed by flash SPS was 650 MPa which is 140 MPa higher than the sample produced by conventional SPS.

本文言語English
ページ(範囲)898-906
ページ数9
ジャーナルJournal of the European Ceramic Society
39
4
DOI
出版ステータスPublished - 2019 4
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学

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