Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting

A ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal rods dispersed in a ZrB2 single-crystal matrix...

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Main Authors: Eric Jianfeng Cheng, Hirokazu Katsui, Takashi Goto
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Journal of Asian Ceramic Societies
Subjects:
Online Access:http://dx.doi.org/10.1080/21870764.2018.1446467
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author Eric Jianfeng Cheng
Hirokazu Katsui
Takashi Goto
author_facet Eric Jianfeng Cheng
Hirokazu Katsui
Takashi Goto
author_sort Eric Jianfeng Cheng
collection DOAJ
description A ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal rods dispersed in a ZrB2 single-crystal matrix. The crystal orientation relationship between the ZrB2 matrix and the ZrN rod was ZrB2 $$\left\{ {11\bar 20} \right\}$$//ZrN{101} and ZrB2 <0001>//ZrN <111>. The rod-like eutectic composite had a Vickers hardness of 16.2 GPa.
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spelling doaj.art-b3fc76b008ec4594ad6320b976ce31712022-12-21T22:43:10ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642018-01-016110210710.1080/21870764.2018.14464671446467Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-meltingEric Jianfeng Cheng0Hirokazu Katsui1Takashi Goto2Tohoku UniversityTohoku UniversityTohoku UniversityA ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal rods dispersed in a ZrB2 single-crystal matrix. The crystal orientation relationship between the ZrB2 matrix and the ZrN rod was ZrB2 $$\left\{ {11\bar 20} \right\}$$//ZrN{101} and ZrB2 <0001>//ZrN <111>. The rod-like eutectic composite had a Vickers hardness of 16.2 GPa.http://dx.doi.org/10.1080/21870764.2018.1446467zirconium diboridezirconium nitrideeutecticunidirectional solidificationmicrostructure
spellingShingle Eric Jianfeng Cheng
Hirokazu Katsui
Takashi Goto
Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
Journal of Asian Ceramic Societies
zirconium diboride
zirconium nitride
eutectic
unidirectional solidification
microstructure
title Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
title_full Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
title_fullStr Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
title_full_unstemmed Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
title_short Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
title_sort microstructure of zrb2 zrn directionally solidified eutectic composite by arc melting
topic zirconium diboride
zirconium nitride
eutectic
unidirectional solidification
microstructure
url http://dx.doi.org/10.1080/21870764.2018.1446467
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AT hirokazukatsui microstructureofzrb2zrndirectionallysolidifiedeutecticcompositebyarcmelting
AT takashigoto microstructureofzrb2zrndirectionallysolidifiedeutecticcompositebyarcmelting