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Title: Phase composition and microstructure of materials in the Ir¨CRu¨CB system prepared by arc melting and VHP sintering
Author: Xiaolong Zhou, Zhaobo Zhou, Kunhua Zhang, and Jie Yu
Journal:  International Journal of Materials Research: 2017, Vol. 108, No. 5, pp. 378-389
doi.org/10.3139/146.111492

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lazy½õϪ: LS-EPI+1 2017-07-08 12:33:21
Phase composition and microstructure of materials in the Ir-Ru-B system prepared by arc melting and VHP sintering

×÷Õß:Zhou, XL (Zhou, Xiaolong)[ 1,2,3 ] ; Zhou, ZB (Zhou, Zhaobo)[ 1,2,3 ] ; Zhang, KH (Zhang, Kunhua)[ 4 ] ; Yu, J (Yu, Jie)[ 1,2,3 ]

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH

¾í: 108

ÆÚ: 5

Ò³: 378-389

DOI: 10.3139/146.111492

³ö°æÄê: MAY 2017

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In this paper, materials in the Ir-Ru-B system with nominal compositions of Ir-Ru-2B and 3Ir-Ru-4B were synthesized by arc melting and vacuum hot press (VHP) sintering. The phase composition and microstructure were characterized using X-ray diffraction, back scatter electron imaging, energy dispersive spectroscopy and electron back scatter diffraction. Different preparation processes for these Ir-Ru-B system materials were studied. The results show that Ir-Ru-2B prepared by arc melting and VHP sintering contains Ir(Ru)B-0.9 and Ru(Ir)B solid solutions, while 3Ir-Ru-4B contains Ir(Ru) B-0.9, Ru(Ir)B-2 and Ir(Ru) solid solutions. The error for the lattice parameters of the VHP sintered samples was larger than that of the arc melted samples. The energy spectrum analysis of the Ir-Ru-2B samples prepared using different processes indicates that the solubility of the solid solutions in the VHP sintered samples was higher than the solubility in the arc melted samples. The formation mechanisms for the (Ir, Ru)-B, (Ir(Ru) B-0.9, Ru(Ir)B-2 and Ru(Ir) B) and Ir(Ru) solid solutions are discussed in detail. There is more Ir(Ru) solid solution in the VHP sintered sample than in the arc melted sample, and the grain orientation of the former is more complex than that of the latter.
¹Ø¼ü´Ê

×÷Õ߹ؼü´Ê:Vacuum hot press sintering; Arc melting; Ir-Ru-B system; Phase constitution; Microstructure

KeyWords Plus:MECHANICAL-PROPERTIES; SUPERHARD MATERIALS; TRANSITION; DIBORIDES; NITRIDES; HARDNESS
×÷ÕßÐÅÏ¢

ͨѶ×÷ÕßµØÖ·: Zhou, XL (ͨѶ×÷Õß)
[ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ]         Kunming Univ Sci & Technol, Dept Mat Sci & Engn, Kunming 650093, Peoples R China.

µØÖ·:
[ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ]         [ 1 ] Kunming Univ Sci & Technol, Dept Mat Sci & Engn, Kunming 650093, Peoples R China
[ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ]         [ 2 ] Kunming Univ Sci & Technol, Key Lab Adv Mat Yunnan Prov, Kunming, Peoples R China
[ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ]         [ 3 ] Kunming Univ Sci & Technol, Minist Educ, Key Lab Adv Mat Nonferrous & Precious Rare Met, Kunming, Peoples R China
              [ 4 ] Kunming Inst Precious Met, State Key Lab Rare Precious Met Comprehens Utiliz, Kunming, Peoples R China

µç×ÓÓʼþµØÖ·:kmzxlong@163.com
»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹        ÊÚȨºÅ
National Natural Science Foundation of China        
51262015
State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals        
SKL-SPM-201510
²é¿´»ù½ð×ÊÖúÐÅÏ¢   
³ö°æÉÌ

CARL HANSER VERLAG, KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
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Ñо¿·½Ïò:Metallurgy & Metallurgical Engineering

Web of Science Àà±ð:Metallurgy & Metallurgical Engineering
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ÎÄÏ×ÀàÐÍ:Article

ÓïÖÖ:English

Èë²ØºÅ: WOS:000403331500005

ISSN: 1862-5282

eISSN: 2195-8556
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    Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports

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