High-temperature synthesis and characterization of boron suboxide (B6O) and boron containing hard materials

被引：1

作者：

Maletaskic, Jelena ^{[1
,2
]}

Lukovic, Jelena ^{[1
]}

Yoshida, Katsumi ^{[2
]}

Yano, Toyohiko ^{[2
]}

Maki, Ryosuke S. S. ^{[2
]}

Gubarevich, Anna ^{[2
]}

Matovic, Branko ^{[1
]}

机构：

[1] Univ Belgrade, Inst Nucl Sci Vinca, Ctr Excellence CextremeLab Vinca, Mike Petrov Alasa 12-14, Belgrade 11000, Serbia

[2] Tokyo Inst Technol, Inst Innovat Res, Lab Adv Nucl Energy, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan

来源：

MATERIALS TODAY-PROCEEDINGS | 2019年 / 16卷

关键词：

Boron suboxide; Synthesis; Morphology; Sintering; POWDER;

D O I：

10.1016/j.matpr.2019.05.281

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Boron-rich phases like boron carbide and boron suboxide (nominally B6O), with high hardness, low density and chemical inertness, are used as an excellent thermal conducting material, as abrasives and for other high-wear applications. In addition, their application as a nuclear material is especially significant. This study presents a synthetic method for preparation of B6O at temperatures between 1200 degrees and 1800 degrees C. The synthesis was done in an argon atmosphere by using amorphous boron and boric acid in appropriate molar ratio. The evolution of the phase composition during thermal treatment was investigated by X-ray diffraction. A sample obtained at 1800 degrees C consisted of B6O and B4C phases, revealing the intense reaction of B6O with carbon substrate in a vacuum. Sintering behaviour of the synthesized boron suboxide was followed with a scanning electron microscope. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：95 / 101

页数：7

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