A novel glass-ceramic with high crystallinity for joining of SiC ceramic

Jian Fang; Jie Zhang; Chunfeng Liu; Liangbo Sun

doi:10.1016/j.matlet.2020.128318

A novel glass-ceramic with high crystallinity for joining of SiC ceramic

Jian Fang
, Jie Zhang^*
, Chunfeng Liu
, Liangbo Sun

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

17 Scopus citations

Abstract

A novel CaO-Al₂O₃-SiO₂-Li₂O (CASL) glass-ceramic filler with high crystallinity was used for joining SiC ceramic at 1260 °C for 10 min. The microstructure and interfacial structure of the joint were characterized in detail. The results showed that the anorthite and spodumene-wollastonite eutectic structure were the main products within the joint domain, and the glass-ceramic has a perfectly matched coefficient of thermal expansion with SiC. Besides, the glass-ceramic has a crystallinity of up to 95.9 wt% and remains thermal stability at 1000 °C. The characterization of the interface revealed the liquid glass can infiltrate into SiC grain boundary due to its good compatibility with SiC. The typical microstructure of joint was the SiC substrate/ CaAl₂Si₂O₈ + LiAlSi₂O₆-CaSiO₃ eutectic + glassy phase/the SiC substrate.

Original language	English
Article number	128318
Journal	Materials Letters
Volume	277
DOIs	https://doi.org/10.1016/j.matlet.2020.128318
State	Published - 15 Oct 2020

Keywords

Glass-ceramic
Microstructure
SiC ceramic
Welding

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@article{537f120cd0674e018d237f93e4e1e753,

title = "A novel glass-ceramic with high crystallinity for joining of SiC ceramic",

abstract = "A novel CaO-Al2O3-SiO2-Li2O (CASL) glass-ceramic filler with high crystallinity was used for joining SiC ceramic at 1260 °C for 10 min. The microstructure and interfacial structure of the joint were characterized in detail. The results showed that the anorthite and spodumene-wollastonite eutectic structure were the main products within the joint domain, and the glass-ceramic has a perfectly matched coefficient of thermal expansion with SiC. Besides, the glass-ceramic has a crystallinity of up to 95.9 wt\% and remains thermal stability at 1000 °C. The characterization of the interface revealed the liquid glass can infiltrate into SiC grain boundary due to its good compatibility with SiC. The typical microstructure of joint was the SiC substrate/ CaAl2Si2O8 + LiAlSi2O6-CaSiO3 eutectic + glassy phase/the SiC substrate.",

keywords = "Glass-ceramic, Microstructure, SiC ceramic, Welding",

author = "Jian Fang and Jie Zhang and Chunfeng Liu and Liangbo Sun",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = oct,

day = "15",

doi = "10.1016/j.matlet.2020.128318",

language = "英语",

volume = "277",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A novel glass-ceramic with high crystallinity for joining of SiC ceramic

AU - Fang, Jian

AU - Zhang, Jie

AU - Liu, Chunfeng

AU - Sun, Liangbo

PY - 2020/10/15

Y1 - 2020/10/15

N2 - A novel CaO-Al2O3-SiO2-Li2O (CASL) glass-ceramic filler with high crystallinity was used for joining SiC ceramic at 1260 °C for 10 min. The microstructure and interfacial structure of the joint were characterized in detail. The results showed that the anorthite and spodumene-wollastonite eutectic structure were the main products within the joint domain, and the glass-ceramic has a perfectly matched coefficient of thermal expansion with SiC. Besides, the glass-ceramic has a crystallinity of up to 95.9 wt% and remains thermal stability at 1000 °C. The characterization of the interface revealed the liquid glass can infiltrate into SiC grain boundary due to its good compatibility with SiC. The typical microstructure of joint was the SiC substrate/ CaAl2Si2O8 + LiAlSi2O6-CaSiO3 eutectic + glassy phase/the SiC substrate.

AB - A novel CaO-Al2O3-SiO2-Li2O (CASL) glass-ceramic filler with high crystallinity was used for joining SiC ceramic at 1260 °C for 10 min. The microstructure and interfacial structure of the joint were characterized in detail. The results showed that the anorthite and spodumene-wollastonite eutectic structure were the main products within the joint domain, and the glass-ceramic has a perfectly matched coefficient of thermal expansion with SiC. Besides, the glass-ceramic has a crystallinity of up to 95.9 wt% and remains thermal stability at 1000 °C. The characterization of the interface revealed the liquid glass can infiltrate into SiC grain boundary due to its good compatibility with SiC. The typical microstructure of joint was the SiC substrate/ CaAl2Si2O8 + LiAlSi2O6-CaSiO3 eutectic + glassy phase/the SiC substrate.

KW - Glass-ceramic

KW - Microstructure

KW - SiC ceramic

KW - Welding

UR - https://www.scopus.com/pages/publications/85087871028

U2 - 10.1016/j.matlet.2020.128318

DO - 10.1016/j.matlet.2020.128318

M3 - 文章

AN - SCOPUS:85087871028

SN - 0167-577X

VL - 277

JO - Materials Letters

JF - Materials Letters

M1 - 128318

ER -

A novel glass-ceramic with high crystallinity for joining of SiC ceramic

Abstract

Keywords

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