Oxygen contamination on the surface of ZrB2 powders and its removal

被引：36

作者：

Ma, Hai-Bin ^{[1
,2
,3
]}

Zou, Ji ^{[4
]}

Lu, Ping ^{[3
]}

Zhu, Jing-Ting ^{[2
,3
]}

Fu, Zheng-Qian ^{[3
]}

Xu, Fang-Fang ^{[3
]}

Zhang, Guo-Jun ^{[1
,3
]}

机构：

[1] Donghua Univ, Res Inst Funct Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[4] Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England

来源：

SCRIPTA MATERIALIA | 2017年 / 127卷

基金：

中国国家自然科学基金;

关键词：

Borides; Surface oxygen impurities; High-resolution electron microscopy (HREM); Electron energy loss spectroscopy (EELS); X-ray photoelectron spectroscopy (XPS); ZIRCONIUM DIBORIDE; BORON-CARBIDE; MICROSTRUCTURE; DENSIFICATION; ADDITIONS; CERAMICS; NITRIDE;

D O I：

10.1016/j.scriptamat.2016.09.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Surface oxygen impurities have been well proved to accelerate the ceramic particle coarsening during sintering, therefore impede the densification of non-oxide ceramics. However, the characteristic of these impurities is still poorly understood. In this work, several state-of-the-art technologies on microscopy and microanalysis techniques were combined to investigate the bonding character, morphology and composition of oxygen contamination on ZrB2 powders. The assemblage of light elements, i.e. O, C, N, B and Si on the surface and in the lattice of the ZrB2 powders was thoroughly analyzed and compared before and after its removal upon heating. (C) 2016 Published by Elsevier Ltd on behalf of Acta Materialia Inc.

引用

页码：160 / 164

页数：5

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