Electrical property of joints made of polymer-derived SiAlCN ceramic via adhesive joining

Yigao Chen; Yejie Cao; Yiguang Wang

doi:10.1016/j.ceramint.2020.09.216

Electrical property of joints made of polymer-derived SiAlCN ceramic via adhesive joining

Yigao Chen, Yejie Cao^*, Yiguang Wang^*

^*Corresponding author for this work

Institute of Advanced Structure Technology

Northwestern Polytechnical University Xian

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

15 Citations (Scopus)

Abstract

Electrical property of joints made with polymer-derived silicoaluminum carbonitride (SiAlCN) ceramics was investigated. SiAlCN ceramics were successfully joined using polycarbosilane precursor as joining medium at 1123 K and 250 kPa. The maximum tensile strength of obtained joints reached ~3 MPa, meeting strength requirement of sensor fabrication. DC and AC conductivity of joints were measured in temperature range of 373–823 K, and were shown to follow band tail hopping mechanism. Conductive behavior of joints was evaluated via comparison with free SiAlCN ceramics. Unique amorphous structures of SiAlCN substrate and joining layer played important role in overall electrical properties. Therefore, the prepared joints presented practical application in high-temperature sensors based on polymer-derived ceramics.

Original language	English
Pages (from-to)	3649-3656
Number of pages	8
Journal	Ceramics International
Volume	47
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2020.09.216
Publication status	Published - 1 Feb 2021

Keywords

Electrical property
Joining
Polymer-derived ceramics
Sensor
Silicoaluminum carbonitride

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10.1016/j.ceramint.2020.09.216

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Chen, Y., Cao, Y., & Wang, Y. (2021). Electrical property of joints made of polymer-derived SiAlCN ceramic via adhesive joining. Ceramics International, 47(3), 3649-3656. https://doi.org/10.1016/j.ceramint.2020.09.216

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abstract = "Electrical property of joints made with polymer-derived silicoaluminum carbonitride (SiAlCN) ceramics was investigated. SiAlCN ceramics were successfully joined using polycarbosilane precursor as joining medium at 1123 K and 250 kPa. The maximum tensile strength of obtained joints reached ~3 MPa, meeting strength requirement of sensor fabrication. DC and AC conductivity of joints were measured in temperature range of 373–823 K, and were shown to follow band tail hopping mechanism. Conductive behavior of joints was evaluated via comparison with free SiAlCN ceramics. Unique amorphous structures of SiAlCN substrate and joining layer played important role in overall electrical properties. Therefore, the prepared joints presented practical application in high-temperature sensors based on polymer-derived ceramics.",

keywords = "Electrical property, Joining, Polymer-derived ceramics, Sensor, Silicoaluminum carbonitride",

author = "Yigao Chen and Yejie Cao and Yiguang Wang",

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

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AU - Cao, Yejie

AU - Wang, Yiguang

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N2 - Electrical property of joints made with polymer-derived silicoaluminum carbonitride (SiAlCN) ceramics was investigated. SiAlCN ceramics were successfully joined using polycarbosilane precursor as joining medium at 1123 K and 250 kPa. The maximum tensile strength of obtained joints reached ~3 MPa, meeting strength requirement of sensor fabrication. DC and AC conductivity of joints were measured in temperature range of 373–823 K, and were shown to follow band tail hopping mechanism. Conductive behavior of joints was evaluated via comparison with free SiAlCN ceramics. Unique amorphous structures of SiAlCN substrate and joining layer played important role in overall electrical properties. Therefore, the prepared joints presented practical application in high-temperature sensors based on polymer-derived ceramics.

AB - Electrical property of joints made with polymer-derived silicoaluminum carbonitride (SiAlCN) ceramics was investigated. SiAlCN ceramics were successfully joined using polycarbosilane precursor as joining medium at 1123 K and 250 kPa. The maximum tensile strength of obtained joints reached ~3 MPa, meeting strength requirement of sensor fabrication. DC and AC conductivity of joints were measured in temperature range of 373–823 K, and were shown to follow band tail hopping mechanism. Conductive behavior of joints was evaluated via comparison with free SiAlCN ceramics. Unique amorphous structures of SiAlCN substrate and joining layer played important role in overall electrical properties. Therefore, the prepared joints presented practical application in high-temperature sensors based on polymer-derived ceramics.

KW - Electrical property

KW - Joining

KW - Polymer-derived ceramics

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KW - Silicoaluminum carbonitride

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Electrical property of joints made of polymer-derived SiAlCN ceramic via adhesive joining

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Keywords

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