A new design of the YIG/MTC joint brazed by bismuth-based glass

Qianqian Chen; Tiesong Lin; Panpan Lin; Peng He; Dusan P. Sekulic; Xuan Zhao; Chonglai Jiang; Jiujie Xu; Yan Liu

doi:10.1016/j.jeurceramsoc.2018.12.014

A new design of the YIG/MTC joint brazed by bismuth-based glass

Qianqian Chen
, Tiesong Lin
, Panpan Lin
, Peng He
, Dusan P. Sekulic
, Xuan Zhao
, Chonglai Jiang
, Jiujie Xu
, Yan Liu

Producción científica: Article › revisión exhaustiva

23 Citas (Scopus)

Resumen

The paper uncovers an underlined mechanism of joining Yttrium Iron Garnet (YIG) and Magnesium Titanate Ceramic (MTC) with a bismuth-based glass braze. The proposed joint design has not been investigated until present. The central hypothesis is as follows. The brazed bismuth-based glass microstructure and the resulting mechanical strength of a YIG/MTC joint design support favorably a good bonding of the interface domains. The supporting evidence includes the following: (i) the bismuth-based glass features good wettability on YIG and MTC, (ii) the sequence of the coefficients of thermal expansions (YIG, bismuth-based glass, MTC) is in a favorable succession. The study reveals that the interface reactions form: (i) a lamellar phase and YBO₃ whiskers at the YIG/Bi25 interface, (ii) both MgFe₂O₄, and Bi₄Ti₃O₁₂ whiskers in addition to Zn₂Ti₃O₈ reaction layer at the MTC/Bi25 interface, and (iii) Fe₂O₃ phase along the brazing seam. The mechanical integrity of joints has been studied as well.

Idioma original	English
Páginas (desde-hasta)	1514-1524
Número de páginas	11
Publicación	Journal of the European Ceramic Society
Volumen	39
N.º	4
DOI	https://doi.org/10.1016/j.jeurceramsoc.2018.12.014
Estado	Published - abr 2019

Nota bibliográfica

Publisher Copyright:
© 2018 Elsevier Ltd

Financiación

This research is supported by “National Natural Science Foundation of China (NSFC , Grant numbers 51805112 )”, “ China Postdoctoral Science Foundation funded Project ( 2018M630349 )”, “ Henan Science and Technology Innovation talents Project ( 174200510010 )”, and “ National Key Research Project ( 2016YFE0201300 )”. One of the authors (DPS) acknowledges the Foreign Expert Chair Professorship appointment at the Harbin Institute of Technology. This research is supported by ?National Natural Science Foundation of China (NSFC, Grant numbers 51805112)? ?China Postdoctoral Science Foundation funded Project (2018M630349)? ?Henan Science and Technology Innovation talents Project (174200510010)? and ?National Key Research Project (2016YFE0201300)?. One of the authors (DPS) acknowledges the Foreign Expert Chair Professorship appointment at the Harbin Institute of Technology.

Financiadores	Número del financiador
Henan Science and Technology Innovation talents Project
National Key Research Project	2016YFE0201300
National Natural Science Foundation of China (NSFC)	51805112
National Natural Science Foundation of China (NSFC)
China Postdoctoral Science Foundation	2018M630349
China Postdoctoral Science Foundation
Harbin Institute of Technology, Harbin, China
Henan Province Science and Technology Innovation Talent Program	174200510010
Henan Province Science and Technology Innovation Talent Program

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "A new design of the YIG/MTC joint brazed by bismuth-based glass",

abstract = "The paper uncovers an underlined mechanism of joining Yttrium Iron Garnet (YIG) and Magnesium Titanate Ceramic (MTC) with a bismuth-based glass braze. The proposed joint design has not been investigated until present. The central hypothesis is as follows. The brazed bismuth-based glass microstructure and the resulting mechanical strength of a YIG/MTC joint design support favorably a good bonding of the interface domains. The supporting evidence includes the following: (i) the bismuth-based glass features good wettability on YIG and MTC, (ii) the sequence of the coefficients of thermal expansions (YIG, bismuth-based glass, MTC) is in a favorable succession. The study reveals that the interface reactions form: (i) a lamellar phase and YBO3 whiskers at the YIG/Bi25 interface, (ii) both MgFe2O4, and Bi4Ti3O12 whiskers in addition to Zn2Ti3O8 reaction layer at the MTC/Bi25 interface, and (iii) Fe2O3 phase along the brazing seam. The mechanical integrity of joints has been studied as well.",

keywords = "Bismuth-based glass braze, Magnesium titanate ceramic, Microstructure, Whiskers, Yttrium iron garnet ferrite",

author = "Qianqian Chen and Tiesong Lin and Panpan Lin and Peng He and Sekulic, \{Dusan P.\} and Xuan Zhao and Chonglai Jiang and Jiujie Xu and Yan Liu",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

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doi = "10.1016/j.jeurceramsoc.2018.12.014",

language = "English",

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AU - Chen, Qianqian

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AU - Lin, Panpan

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AU - Zhao, Xuan

AU - Jiang, Chonglai

AU - Xu, Jiujie

AU - Liu, Yan

PY - 2019/4

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N2 - The paper uncovers an underlined mechanism of joining Yttrium Iron Garnet (YIG) and Magnesium Titanate Ceramic (MTC) with a bismuth-based glass braze. The proposed joint design has not been investigated until present. The central hypothesis is as follows. The brazed bismuth-based glass microstructure and the resulting mechanical strength of a YIG/MTC joint design support favorably a good bonding of the interface domains. The supporting evidence includes the following: (i) the bismuth-based glass features good wettability on YIG and MTC, (ii) the sequence of the coefficients of thermal expansions (YIG, bismuth-based glass, MTC) is in a favorable succession. The study reveals that the interface reactions form: (i) a lamellar phase and YBO3 whiskers at the YIG/Bi25 interface, (ii) both MgFe2O4, and Bi4Ti3O12 whiskers in addition to Zn2Ti3O8 reaction layer at the MTC/Bi25 interface, and (iii) Fe2O3 phase along the brazing seam. The mechanical integrity of joints has been studied as well.

AB - The paper uncovers an underlined mechanism of joining Yttrium Iron Garnet (YIG) and Magnesium Titanate Ceramic (MTC) with a bismuth-based glass braze. The proposed joint design has not been investigated until present. The central hypothesis is as follows. The brazed bismuth-based glass microstructure and the resulting mechanical strength of a YIG/MTC joint design support favorably a good bonding of the interface domains. The supporting evidence includes the following: (i) the bismuth-based glass features good wettability on YIG and MTC, (ii) the sequence of the coefficients of thermal expansions (YIG, bismuth-based glass, MTC) is in a favorable succession. The study reveals that the interface reactions form: (i) a lamellar phase and YBO3 whiskers at the YIG/Bi25 interface, (ii) both MgFe2O4, and Bi4Ti3O12 whiskers in addition to Zn2Ti3O8 reaction layer at the MTC/Bi25 interface, and (iii) Fe2O3 phase along the brazing seam. The mechanical integrity of joints has been studied as well.

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KW - Magnesium titanate ceramic

KW - Microstructure

KW - Whiskers

KW - Yttrium iron garnet ferrite

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A new design of the YIG/MTC joint brazed by bismuth-based glass

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