Processing and characterization of fine-grained monolithic SiC ceramic synthesized by spark plasma sintering

Zhao Hui Zhang; Fu Chi Wang; Jie Luo; Shu Kui Lee; Lu Wang

doi:10.1016/j.msea.2009.12.027

Processing and characterization of fine-grained monolithic SiC ceramic synthesized by spark plasma sintering

Zhao Hui Zhang^*, Fu Chi Wang, Jie Luo, Shu Kui Lee, Lu Wang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

46 Citations (Scopus)

Abstract

Monolithic silicon carbide (SiC) ceramic with good mechanical properties was synthesized by spark plasma sintering (SPS) technique, using granulated SiC powders. The microstructures and the mechanical properties of the ceramics sintered at different temperature were investigated. The results reveal that the SiC ceramic sintered at 1860 °C has relative density of 98.5%, micro-Vickers hardness of 28.5 GPa, bending strength of 395 MPa, and fracture toughness of 4.5 MPa m^1/2. By comparison, due to the present SiC ceramic exhibits fine-grained microstructures and the granulated SiC powders was used during the sintering process, the mechanical properties of the SiC ceramic synthesized by SPS are much better than that prepared by common sintering methods.

Original language	English
Pages (from-to)	2099-2103
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	527
Issue number	7-8
DOIs	https://doi.org/10.1016/j.msea.2009.12.027
Publication status	Published - 25 Mar 2010

Keywords

Mechanical properties
Microstructure
SiC
Spark plasma sintering

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10.1016/j.msea.2009.12.027

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title = "Processing and characterization of fine-grained monolithic SiC ceramic synthesized by spark plasma sintering",

abstract = "Monolithic silicon carbide (SiC) ceramic with good mechanical properties was synthesized by spark plasma sintering (SPS) technique, using granulated SiC powders. The microstructures and the mechanical properties of the ceramics sintered at different temperature were investigated. The results reveal that the SiC ceramic sintered at 1860 °C has relative density of 98.5%, micro-Vickers hardness of 28.5 GPa, bending strength of 395 MPa, and fracture toughness of 4.5 MPa m1/2. By comparison, due to the present SiC ceramic exhibits fine-grained microstructures and the granulated SiC powders was used during the sintering process, the mechanical properties of the SiC ceramic synthesized by SPS are much better than that prepared by common sintering methods.",

keywords = "Mechanical properties, Microstructure, SiC, Spark plasma sintering",

author = "Zhang, {Zhao Hui} and Wang, {Fu Chi} and Jie Luo and Lee, {Shu Kui} and Lu Wang",

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T1 - Processing and characterization of fine-grained monolithic SiC ceramic synthesized by spark plasma sintering

AU - Zhang, Zhao Hui

AU - Wang, Fu Chi

AU - Luo, Jie

AU - Lee, Shu Kui

AU - Wang, Lu

PY - 2010/3/25

Y1 - 2010/3/25

N2 - Monolithic silicon carbide (SiC) ceramic with good mechanical properties was synthesized by spark plasma sintering (SPS) technique, using granulated SiC powders. The microstructures and the mechanical properties of the ceramics sintered at different temperature were investigated. The results reveal that the SiC ceramic sintered at 1860 °C has relative density of 98.5%, micro-Vickers hardness of 28.5 GPa, bending strength of 395 MPa, and fracture toughness of 4.5 MPa m1/2. By comparison, due to the present SiC ceramic exhibits fine-grained microstructures and the granulated SiC powders was used during the sintering process, the mechanical properties of the SiC ceramic synthesized by SPS are much better than that prepared by common sintering methods.

AB - Monolithic silicon carbide (SiC) ceramic with good mechanical properties was synthesized by spark plasma sintering (SPS) technique, using granulated SiC powders. The microstructures and the mechanical properties of the ceramics sintered at different temperature were investigated. The results reveal that the SiC ceramic sintered at 1860 °C has relative density of 98.5%, micro-Vickers hardness of 28.5 GPa, bending strength of 395 MPa, and fracture toughness of 4.5 MPa m1/2. By comparison, due to the present SiC ceramic exhibits fine-grained microstructures and the granulated SiC powders was used during the sintering process, the mechanical properties of the SiC ceramic synthesized by SPS are much better than that prepared by common sintering methods.

KW - Mechanical properties

KW - Microstructure

KW - SiC

KW - Spark plasma sintering

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Processing and characterization of fine-grained monolithic SiC ceramic synthesized by spark plasma sintering

Abstract

Keywords

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