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

doi:10.2497/jjspm.52.664

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 journal › Article › peer-review

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 language	English
Pages (from-to)	664-669
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	52
Issue number	9
DOIs	https://doi.org/10.2497/jjspm.52.664
Publication status	Published - Sept 2005
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.2497/jjspm.52.664

Cite this

@article{e79069618fe848f4a7086a8f08a4919d,

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

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.",

keywords = "Function-building fine particle preparation, Hafnium diboride, Metallothermic reduction, Zirconium diboride",

author = "Takahiro Ohkubo and Tetsuo Ono and Katsuhiro Nishiyama and Susumu Niwa and Hideki Sakai and Masumi Koishi and Masahiko Abe",

year = "2005",

month = sep,

doi = "10.2497/jjspm.52.664",

language = "English",

volume = "52",

pages = "664--669",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

issn = "0532-8799",

publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",

number = "9",

}

TY - JOUR

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

PY - 2005/9

Y1 - 2005/9

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.

KW - Function-building fine particle preparation

KW - Hafnium diboride

KW - Metallothermic reduction

KW - Zirconium diboride

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