Cross-diffusion phenomena within a ZrCx – Zr – ZrCx joint

Rui Pan; Peng He; Tiesong Lin; Dusan P. Sekulic; Zhao Huang; Hongmei Wei; Zhihua Yang

doi:10.1016/j.jeurceramsoc.2017.02.051

Cross-diffusion phenomena within a ZrC_x – Zr – ZrC_x joint

Rui Pan, Peng He, Tiesong Lin, Dusan P. Sekulic, Zhao Huang, Hongmei Wei, Zhihua Yang

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

This study uncovers process conditions for the homogenization of the interface zone formed by a diffusion bonding of ZrC_x (x = 1, 0.85 and 0.7) assisted by a Zirconium interlayer. The transitional metal interlayer is positioned between the ceramics mating surfaces _. The ability of Zr to form a homogenous joint with ZrC_x was verified for all the considered cases of ZrC_x. The homogenous joint domain forms under conditions of a particular range of values of (i) the concentration of carbon vacancies in the base ZrC_x ceramics, (ii) the bonding temperature, and (iii) the holding time, for a given thickness of the interlayer. The formation of a homogenous domain improves remarkably the mechanical properties of ZrC_x joints. It is established that the four-point bending strength and the nano-indentation hardness of the homogenous ZrC_x/Zr/ZrC_x joints can be as high as that of the base ceramics.

Original language	English
Pages (from-to)	2779-2786
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	37
Issue number	8
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2017.02.051
State	Published - Jul 1 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Funding

This work is supported by the National Natural Science Foundation of China (NSFC, grant number 51305102 and 51475103) and the Funds for Distinguished Young Scientists of Heilongjiang Province (grant number JC2015011). One of the authors (DPS) acknowledges a support through the Distinguished 1000 Foreign Expert Professor Plan. The lead author (RP) expresses an appreciation of the support from Chinese Scholarship Council, University of Kentucky (UK), and Massachusetts Institute of Technology (MIT) for an opportunity to complete these studies at UK and MIT. The authors acknowledge the constructive suggestions of an anonymous reviewer.

Funders	Funder number
Distinguished Foreign Expert 1000 Plan
Funds for Distinguished Young Scientists of Heilongjiang Province	JC2015011
Massachusetts Institute of Technology
University of Kentucky
National Natural Science Foundation of China (NSFC)	51305102, 51475103
China Scholarship Council

Keywords

Carbides
Diffusion bonding
Homogenization
Mechanical properties
Microstructure

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2017.02.051

Cite this

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title = "Cross-diffusion phenomena within a ZrCx – Zr – ZrCx joint",

abstract = "This study uncovers process conditions for the homogenization of the interface zone formed by a diffusion bonding of ZrCx (x = 1, 0.85 and 0.7) assisted by a Zirconium interlayer. The transitional metal interlayer is positioned between the ceramics mating surfaces . The ability of Zr to form a homogenous joint with ZrCx was verified for all the considered cases of ZrCx. The homogenous joint domain forms under conditions of a particular range of values of (i) the concentration of carbon vacancies in the base ZrCx ceramics, (ii) the bonding temperature, and (iii) the holding time, for a given thickness of the interlayer. The formation of a homogenous domain improves remarkably the mechanical properties of ZrCx joints. It is established that the four-point bending strength and the nano-indentation hardness of the homogenous ZrCx/Zr/ZrCx joints can be as high as that of the base ceramics.",

keywords = "Carbides, Diffusion bonding, Homogenization, Mechanical properties, Microstructure",

author = "Rui Pan and Peng He and Tiesong Lin and Sekulic, {Dusan P.} and Zhao Huang and Hongmei Wei and Zhihua Yang",

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doi = "10.1016/j.jeurceramsoc.2017.02.051",

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AU - Pan, Rui

AU - He, Peng

AU - Lin, Tiesong

AU - Sekulic, Dusan P.

AU - Huang, Zhao

AU - Wei, Hongmei

AU - Yang, Zhihua

PY - 2017/7/1

Y1 - 2017/7/1

N2 - This study uncovers process conditions for the homogenization of the interface zone formed by a diffusion bonding of ZrCx (x = 1, 0.85 and 0.7) assisted by a Zirconium interlayer. The transitional metal interlayer is positioned between the ceramics mating surfaces . The ability of Zr to form a homogenous joint with ZrCx was verified for all the considered cases of ZrCx. The homogenous joint domain forms under conditions of a particular range of values of (i) the concentration of carbon vacancies in the base ZrCx ceramics, (ii) the bonding temperature, and (iii) the holding time, for a given thickness of the interlayer. The formation of a homogenous domain improves remarkably the mechanical properties of ZrCx joints. It is established that the four-point bending strength and the nano-indentation hardness of the homogenous ZrCx/Zr/ZrCx joints can be as high as that of the base ceramics.

AB - This study uncovers process conditions for the homogenization of the interface zone formed by a diffusion bonding of ZrCx (x = 1, 0.85 and 0.7) assisted by a Zirconium interlayer. The transitional metal interlayer is positioned between the ceramics mating surfaces . The ability of Zr to form a homogenous joint with ZrCx was verified for all the considered cases of ZrCx. The homogenous joint domain forms under conditions of a particular range of values of (i) the concentration of carbon vacancies in the base ZrCx ceramics, (ii) the bonding temperature, and (iii) the holding time, for a given thickness of the interlayer. The formation of a homogenous domain improves remarkably the mechanical properties of ZrCx joints. It is established that the four-point bending strength and the nano-indentation hardness of the homogenous ZrCx/Zr/ZrCx joints can be as high as that of the base ceramics.

KW - Carbides

KW - Diffusion bonding

KW - Homogenization

KW - Mechanical properties

KW - Microstructure

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