Synthesis of nanosized zirconium diboride powder via oxide-borohydride solid-state reaction

被引：22

作者：

Zoli, Luca ^{[1
]}

Costa, Anna Luisa ^{[1
]}

Sciti, Diletta ^{[1
]}

机构：

[1] CNR, Inst Sci & Technol Ceram ISTEC, I-48018 Faenza, Italy

来源：

SCRIPTA MATERIALIA | 2015年 / 109卷

关键词：

ZrO2; ZrB2; NaBH4; Nanoparticle; Solid-state reaction; ZRB2; POWDERS; BOROTHERMAL REDUCTION; THIN-FILMS; BORIDE; HAFNIUM; PRECURSORS; TITANIUM; ROUTE;

D O I：

10.1016/j.scriptamat.2015.07.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel solid-state reaction was investigated to achieve nanosized ZrB2 particles using ZrO2 and NaBH4 as starting materials, which were dry mixed and thermally treated at increasing temperatures and B:Zr molar ratio to get a complete oxide to boride conversion. X-ray diffraction analysis showed that the reaction was completed after 30 min at 900 degrees C. Field-emission scanning microscopy revealed ZrB2 particles with dimensions around 100 nm. In this paper for the first time we propose the oxide-borohydride system as an alternative to synthesize metal borides to chemical and borothermic reactions. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：100 / 103

页数：4

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