Spark plasma sintering of B4C-SiC composites

Filiz Cinar Sahin; Burcu Apak; Ipek Akin; Halide E. Kanbur; Didem H. Genckan; Ahmet Turan; Gultekin Goller; Onuralp Yucel

doi:10.1016/j.solidstatesciences.2012.05.037

Spark plasma sintering of B₄C-SiC composites

Filiz Cinar Sahin^*, Burcu Apak, Ipek Akin, Halide E. Kanbur, Didem H. Genckan, Ahmet Turan, Gultekin Goller, Onuralp Yucel

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

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

54 Citations (Scopus)

Abstract

B₄C-SiC composites were produced using spark plasma sintering (SPS) both reactively from B₄C-SiO₂-C starting powders and directly from B₄C-SiC at 1700 and 1750 °C under a pressure of 40 MPa. Densification, microstructure and mechanical properties of B ₄C-SiC composites were investigated. 98.8% relative density was obtained with the addition of Y₂O₃ in directly spark plasma sintered sample containing 10% SiC at 1750 °C for 5 min. In reactive spark plasma sintering, increasing SiC content resulted in a decrease in density because of the oxidation of SiC to SiO gas phase. The glassy phases formed with Y₂O₃ addition caused the Vickers hardness values to increase. SiC phase showed a homogenous dispersion in B₄C matrix.

Original language	English
Pages (from-to)	1660-1663
Number of pages	4
Journal	Solid State Sciences
Volume	14
Issue number	11-12
DOIs	https://doi.org/10.1016/j.solidstatesciences.2012.05.037
Publication status	Published - 2012

Keywords

BC
Microstructure final
SiC
Spark plasma sintering
X-ray methods

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10.1016/j.solidstatesciences.2012.05.037

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title = "Spark plasma sintering of B4C-SiC composites",

abstract = "B4C-SiC composites were produced using spark plasma sintering (SPS) both reactively from B4C-SiO2-C starting powders and directly from B4C-SiC at 1700 and 1750 °C under a pressure of 40 MPa. Densification, microstructure and mechanical properties of B 4C-SiC composites were investigated. 98.8% relative density was obtained with the addition of Y2O3 in directly spark plasma sintered sample containing 10% SiC at 1750 °C for 5 min. In reactive spark plasma sintering, increasing SiC content resulted in a decrease in density because of the oxidation of SiC to SiO gas phase. The glassy phases formed with Y2O3 addition caused the Vickers hardness values to increase. SiC phase showed a homogenous dispersion in B4C matrix.",

keywords = "BC, Microstructure final, SiC, Spark plasma sintering, X-ray methods",

author = "Sahin, {Filiz Cinar} and Burcu Apak and Ipek Akin and Kanbur, {Halide E.} and Genckan, {Didem H.} and Ahmet Turan and Gultekin Goller and Onuralp Yucel",

year = "2012",

doi = "10.1016/j.solidstatesciences.2012.05.037",

language = "English",

volume = "14",

pages = "1660--1663",

journal = "Solid State Sciences",

issn = "1293-2558",

publisher = "Elsevier Masson s.r.l.",

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TY - JOUR

T1 - Spark plasma sintering of B4C-SiC composites

AU - Sahin, Filiz Cinar

AU - Apak, Burcu

AU - Akin, Ipek

AU - Kanbur, Halide E.

AU - Genckan, Didem H.

AU - Turan, Ahmet

AU - Goller, Gultekin

AU - Yucel, Onuralp

PY - 2012

Y1 - 2012

N2 - B4C-SiC composites were produced using spark plasma sintering (SPS) both reactively from B4C-SiO2-C starting powders and directly from B4C-SiC at 1700 and 1750 °C under a pressure of 40 MPa. Densification, microstructure and mechanical properties of B 4C-SiC composites were investigated. 98.8% relative density was obtained with the addition of Y2O3 in directly spark plasma sintered sample containing 10% SiC at 1750 °C for 5 min. In reactive spark plasma sintering, increasing SiC content resulted in a decrease in density because of the oxidation of SiC to SiO gas phase. The glassy phases formed with Y2O3 addition caused the Vickers hardness values to increase. SiC phase showed a homogenous dispersion in B4C matrix.

AB - B4C-SiC composites were produced using spark plasma sintering (SPS) both reactively from B4C-SiO2-C starting powders and directly from B4C-SiC at 1700 and 1750 °C under a pressure of 40 MPa. Densification, microstructure and mechanical properties of B 4C-SiC composites were investigated. 98.8% relative density was obtained with the addition of Y2O3 in directly spark plasma sintered sample containing 10% SiC at 1750 °C for 5 min. In reactive spark plasma sintering, increasing SiC content resulted in a decrease in density because of the oxidation of SiC to SiO gas phase. The glassy phases formed with Y2O3 addition caused the Vickers hardness values to increase. SiC phase showed a homogenous dispersion in B4C matrix.

KW - BC

KW - Microstructure final

KW - SiC

KW - Spark plasma sintering

KW - X-ray methods

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U2 - 10.1016/j.solidstatesciences.2012.05.037

DO - 10.1016/j.solidstatesciences.2012.05.037

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SN - 1293-2558

VL - 14

SP - 1660

EP - 1663

JO - Solid State Sciences

JF - Solid State Sciences

IS - 11-12

ER -

Spark plasma sintering of B₄C-SiC composites

Abstract

Keywords

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