Mechanochemical synthesis and spark plasma sintering of hafnium carbonitride ceramics

被引：15

作者：

Buinevich, V. S. ^{[1
]}

Nepapushev, A. A. ^{[1
]}

Moskovskikh, D. O. ^{[1
]}

Trusov, G. V. ^{[1
]}

Kuskov, K. V. ^{[1
]}

Mukasyan, A. S. ^{[2
]}

机构：

[1] Natl Univ Sci & Technol MISiS, Ctr Funct Nanoceram, Moscow 119049, Russia

[2] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA

来源：

ADVANCED POWDER TECHNOLOGY | 2021年 / 32卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

Hafnium carbonitrides; Mechanochemical synthesis; Spark plasma sintering; Bulk ceramics;

D O I：

10.1016/j.apt.2020.12.018

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Submicron powder of non-stoichiometric hafnium carbonitrides (HC0.5N0.2) was fabricated by the mechanochemical synthesis method. It was shown that during the first milling stages, primarily reaction between hafnium and carbon took place. The nitridation occurred later when fresh metal surfaces started to form through defragmentation of the brittle layer of a carbon-solid solution. The synthesized powder was consolidated by spark plasma sintering approach to producing dense bulk hafnium carbonitride ceramics. Hardness and fracture toughness measured on consolidated samples were 20.8 +/- 1 GPa b 3.5 +/- 0.2 MPa.m(1/2), respectively. The obtained results were compared with previously reported data. (c) 2020 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

引用

页码：385 / 389

页数：5

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