Synthesis of Monodispersed Fine Hafnium Diboride Powders Using Carbo/Borothermal Reduction of Hafnium Dioxide

De Wei Ni, Guo-Jun Zhang, Yan-Mei Kan, Pei-Ling Wang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Fine hafnium diboride (HfB2) powders have been prepared by modified carbothermal/borothermal reduction of hafnium dioxide (HfO2) at relatively low temperatures (1500°-1600°C) for 1-2 h. The XRD patterns could be indexed as hexagonal HfB2 and no evidence of HfC, HfO2, or other impurities was observed. Glow discharge mass spectrometer analysis indicates that the synthesized HfB2 powders had high purity. The synthesized HfB2 powders had small average crystallite size (around 1 μm) and low oxygen content (
Original languageEnglish
JournalJournal of the American Ceramic Society
Volume91
Issue number8
Pages (from-to)2709-2712
ISSN0002-7820
DOIs
Publication statusPublished - 2008
Externally publishedYes

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