Preparation of ZrB 2 and HfB 2 by metallothermic reduction of ZrO 2, ZrSiO 4, and HfO 2

Takahiro Ohkubo, Tetsuo Ono, Katsuhiro Nishiyama, Susumu Niwa, Hideki Sakai, Masumi Koishi, Masahiko Abe

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

ZrB 2 and HfB 2 were prepared by metallothermic reduction (MTR) of ZrO 2, ZrSiO 4, and HfO 2 with Mg or Mg and MgO mixtures. We understood that the theory of function-building fine particle preparation was able to be applied to synthesize nano-atomized fine particles of ZrB 2. ZrB 2 can also be obtained directly from mixture of ZrSiO 4, B 2O 3, and Mg by MTR method. This sample has no borides such as silicon boride except for ZrB 2. Therefore, this result shows the possibility to obtain ZrB 2 easily from natural source. In addition, HfB 2 can also be synthesized by MTR method using HfO 2 which was calcined over 750°C.

Original languageEnglish
Pages (from-to)664-669
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume52
Issue number9
DOIs
Publication statusPublished - Sep 2005
Externally publishedYes

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Boron Compounds
Borides
Silicon

Keywords

  • Function-building fine particle preparation
  • Hafnium diboride
  • Metallothermic reduction
  • Zirconium diboride

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Preparation of ZrB 2 and HfB 2 by metallothermic reduction of ZrO 2, ZrSiO 4, and HfO 2 . / Ohkubo, Takahiro; Ono, Tetsuo; Nishiyama, Katsuhiro; Niwa, Susumu; Sakai, Hideki; Koishi, Masumi; Abe, Masahiko.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 52, No. 9, 09.2005, p. 664-669.

Research output: Contribution to journalArticle

Ohkubo, Takahiro ; Ono, Tetsuo ; Nishiyama, Katsuhiro ; Niwa, Susumu ; Sakai, Hideki ; Koishi, Masumi ; Abe, Masahiko. / Preparation of ZrB 2 and HfB 2 by metallothermic reduction of ZrO 2, ZrSiO 4, and HfO 2 . In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy. 2005 ; Vol. 52, No. 9. pp. 664-669.
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abstract = "ZrB 2 and HfB 2 were prepared by metallothermic reduction (MTR) of ZrO 2, ZrSiO 4, and HfO 2 with Mg or Mg and MgO mixtures. We understood that the theory of function-building fine particle preparation was able to be applied to synthesize nano-atomized fine particles of ZrB 2. ZrB 2 can also be obtained directly from mixture of ZrSiO 4, B 2O 3, and Mg by MTR method. This sample has no borides such as silicon boride except for ZrB 2. Therefore, this result shows the possibility to obtain ZrB 2 easily from natural source. In addition, HfB 2 can also be synthesized by MTR method using HfO 2 which was calcined over 750°C.",
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T1 - Preparation of ZrB 2 and HfB 2 by metallothermic reduction of ZrO 2, ZrSiO 4, and HfO 2

AU - Ohkubo, Takahiro

AU - Ono, Tetsuo

AU - Nishiyama, Katsuhiro

AU - Niwa, Susumu

AU - Sakai, Hideki

AU - Koishi, Masumi

AU - Abe, Masahiko

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N2 - ZrB 2 and HfB 2 were prepared by metallothermic reduction (MTR) of ZrO 2, ZrSiO 4, and HfO 2 with Mg or Mg and MgO mixtures. We understood that the theory of function-building fine particle preparation was able to be applied to synthesize nano-atomized fine particles of ZrB 2. ZrB 2 can also be obtained directly from mixture of ZrSiO 4, B 2O 3, and Mg by MTR method. This sample has no borides such as silicon boride except for ZrB 2. Therefore, this result shows the possibility to obtain ZrB 2 easily from natural source. In addition, HfB 2 can also be synthesized by MTR method using HfO 2 which was calcined over 750°C.

AB - ZrB 2 and HfB 2 were prepared by metallothermic reduction (MTR) of ZrO 2, ZrSiO 4, and HfO 2 with Mg or Mg and MgO mixtures. We understood that the theory of function-building fine particle preparation was able to be applied to synthesize nano-atomized fine particles of ZrB 2. ZrB 2 can also be obtained directly from mixture of ZrSiO 4, B 2O 3, and Mg by MTR method. This sample has no borides such as silicon boride except for ZrB 2. Therefore, this result shows the possibility to obtain ZrB 2 easily from natural source. In addition, HfB 2 can also be synthesized by MTR method using HfO 2 which was calcined over 750°C.

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KW - Hafnium diboride

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KW - Zirconium diboride

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