Brazing YSZ ceramics by a novel SiO2 nanoparticles modified Ag filler

Zhiquan Wang; Chun Li; Xiaoqing Si; Bo Yang; Yongxian Huang; Junlei Qi; Jicai Feng; Jian Cao

doi:10.1016/j.ceramint.2020.03.214

Brazing YSZ ceramics by a novel SiO₂ nanoparticles modified Ag filler

Zhiquan Wang
, Chun Li
, Xiaoqing Si
, Bo Yang
, Yongxian Huang
, Junlei Qi
, Jicai Feng
, Jian Cao^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

38 Scopus citations

Abstract

Yttria-stabilized zirconia (YSZ) ceramics are soundly brazed in air using a novel amorphous SiO₂ nanoparticles (NPs) modified Ag filler. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction are employed to characterize the interfacial microstructure of YSZ joints. A uniform amorphous SiO₂ layer is observed on the YSZ substrate surface. Micro-sized SiO₂ clusters are dispersed in the Ag braze matrix, which forms the brazing seam. The content of SiO₂ NPs and the brazing temperature exert significant effects on the formation of YSZ joints. The maximum shear strength of YSZ joints reaches 47 MPa under the optimized brazing conditions (Ag–2SiO₂, 1050 °C/30 min, 2 MPa load pressure).

Original language	English
Pages (from-to)	16493-16501
Number of pages	9
Journal	Ceramics International
Volume	46
Issue number	10
DOIs	https://doi.org/10.1016/j.ceramint.2020.03.214
State	Published - Jul 2020

Keywords

Ag–SiO braze
Interfacial microstructure
Mechanical properties
Solid oxide fuel/Electrolysis cells
YSZ ceramics

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10.1016/j.ceramint.2020.03.214

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@article{318559f6fd824d82a930ba7bc7fade8c,

title = "Brazing YSZ ceramics by a novel SiO2 nanoparticles modified Ag filler",

abstract = "Yttria-stabilized zirconia (YSZ) ceramics are soundly brazed in air using a novel amorphous SiO2 nanoparticles (NPs) modified Ag filler. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction are employed to characterize the interfacial microstructure of YSZ joints. A uniform amorphous SiO2 layer is observed on the YSZ substrate surface. Micro-sized SiO2 clusters are dispersed in the Ag braze matrix, which forms the brazing seam. The content of SiO2 NPs and the brazing temperature exert significant effects on the formation of YSZ joints. The maximum shear strength of YSZ joints reaches 47 MPa under the optimized brazing conditions (Ag–2SiO2, 1050 °C/30 min, 2 MPa load pressure).",

keywords = "Ag–SiO braze, Interfacial microstructure, Mechanical properties, Solid oxide fuel/Electrolysis cells, YSZ ceramics",

author = "Zhiquan Wang and Chun Li and Xiaoqing Si and Bo Yang and Yongxian Huang and Junlei Qi and Jicai Feng and Jian Cao",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd and Techna Group S.r.l.",

year = "2020",

month = jul,

doi = "10.1016/j.ceramint.2020.03.214",

language = "英语",

volume = "46",

pages = "16493--16501",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "10",

}

TY - JOUR

T1 - Brazing YSZ ceramics by a novel SiO2 nanoparticles modified Ag filler

AU - Wang, Zhiquan

AU - Li, Chun

AU - Si, Xiaoqing

AU - Yang, Bo

AU - Huang, Yongxian

AU - Qi, Junlei

AU - Feng, Jicai

AU - Cao, Jian

PY - 2020/7

Y1 - 2020/7

N2 - Yttria-stabilized zirconia (YSZ) ceramics are soundly brazed in air using a novel amorphous SiO2 nanoparticles (NPs) modified Ag filler. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction are employed to characterize the interfacial microstructure of YSZ joints. A uniform amorphous SiO2 layer is observed on the YSZ substrate surface. Micro-sized SiO2 clusters are dispersed in the Ag braze matrix, which forms the brazing seam. The content of SiO2 NPs and the brazing temperature exert significant effects on the formation of YSZ joints. The maximum shear strength of YSZ joints reaches 47 MPa under the optimized brazing conditions (Ag–2SiO2, 1050 °C/30 min, 2 MPa load pressure).

AB - Yttria-stabilized zirconia (YSZ) ceramics are soundly brazed in air using a novel amorphous SiO2 nanoparticles (NPs) modified Ag filler. Scanning electron microscopy, transmission electron microscopy and X-ray diffraction are employed to characterize the interfacial microstructure of YSZ joints. A uniform amorphous SiO2 layer is observed on the YSZ substrate surface. Micro-sized SiO2 clusters are dispersed in the Ag braze matrix, which forms the brazing seam. The content of SiO2 NPs and the brazing temperature exert significant effects on the formation of YSZ joints. The maximum shear strength of YSZ joints reaches 47 MPa under the optimized brazing conditions (Ag–2SiO2, 1050 °C/30 min, 2 MPa load pressure).

KW - Ag–SiO braze

KW - Interfacial microstructure

KW - Mechanical properties

KW - Solid oxide fuel/Electrolysis cells

KW - YSZ ceramics

UR - https://www.scopus.com/pages/publications/85082407365

U2 - 10.1016/j.ceramint.2020.03.214

DO - 10.1016/j.ceramint.2020.03.214

M3 - 文章

AN - SCOPUS:85082407365

SN - 0272-8842

VL - 46

SP - 16493

EP - 16501

JO - Ceramics International

JF - Ceramics International

IS - 10

ER -

Brazing YSZ ceramics by a novel SiO₂ nanoparticles modified Ag filler

Abstract

Keywords

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