Mechanical and electrical properties of MoSi2-based ceramics with various ZrB2-20 vol% SiC as additives for ultra high temperature heating element

Rujie He; Zongwei Tong; Keqiang Zhang; Daining Fang

doi:10.1016/j.ceramint.2017.10.043

Mechanical and electrical properties of MoSi₂-based ceramics with various ZrB₂-20 vol% SiC as additives for ultra high temperature heating element

Rujie He^*, Zongwei Tong, Keqiang Zhang, Daining Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Beijing Institute of Technology

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

31 Citations (Scopus)

Abstract

MoSi₂-(ZrB₂-20 vol% SiC) ceramics were produced by pressureless sintering at 1700–1900 °C for 1 h. The amounts of ZrB₂-20 vol% SiC were in the range of 0–80 vol%. Synergetic effects of ZrB₂ and SiC additives on flexure strength of MoSi₂ based ceramics were investigated in detail. A maximum strength of 279 ± 20 MPa was examined for the ceramic with 20 vol% (ZrB₂-20 vol% SiC). The electrical resistivity of the ceramics decreased with the volume fraction of (ZrB₂-20 vol% SiC) increasing. Microstructure analysis and topological transformation calculations were carried out, which further proved the flexure strength and electrical resistivity measurement results.

Original language	English
Pages (from-to)	1041-1045
Number of pages	5
Journal	Ceramics International
Volume	44
Issue number	1
DOIs	https://doi.org/10.1016/j.ceramint.2017.10.043
Publication status	Published - Jan 2018

Keywords

Electrical property
Mechanical property
Microstructure
Molybdenum disilicide
Topological transformation

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10.1016/j.ceramint.2017.10.043

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title = "Mechanical and electrical properties of MoSi2-based ceramics with various ZrB2-20 vol% SiC as additives for ultra high temperature heating element",

abstract = "MoSi2-(ZrB2-20 vol% SiC) ceramics were produced by pressureless sintering at 1700–1900 °C for 1 h. The amounts of ZrB2-20 vol% SiC were in the range of 0–80 vol%. Synergetic effects of ZrB2 and SiC additives on flexure strength of MoSi2 based ceramics were investigated in detail. A maximum strength of 279 ± 20 MPa was examined for the ceramic with 20 vol% (ZrB2-20 vol% SiC). The electrical resistivity of the ceramics decreased with the volume fraction of (ZrB2-20 vol% SiC) increasing. Microstructure analysis and topological transformation calculations were carried out, which further proved the flexure strength and electrical resistivity measurement results.",

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author = "Rujie He and Zongwei Tong and Keqiang Zhang and Daining Fang",

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AU - Fang, Daining

PY - 2018/1

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AB - MoSi2-(ZrB2-20 vol% SiC) ceramics were produced by pressureless sintering at 1700–1900 °C for 1 h. The amounts of ZrB2-20 vol% SiC were in the range of 0–80 vol%. Synergetic effects of ZrB2 and SiC additives on flexure strength of MoSi2 based ceramics were investigated in detail. A maximum strength of 279 ± 20 MPa was examined for the ceramic with 20 vol% (ZrB2-20 vol% SiC). The electrical resistivity of the ceramics decreased with the volume fraction of (ZrB2-20 vol% SiC) increasing. Microstructure analysis and topological transformation calculations were carried out, which further proved the flexure strength and electrical resistivity measurement results.

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KW - Molybdenum disilicide

KW - Topological transformation

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Mechanical and electrical properties of MoSi₂-based ceramics with various ZrB₂-20 vol% SiC as additives for ultra high temperature heating element

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Keywords

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