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Title: Reaction-bond composite synthesis of SiC-TiB2 by spark plasma sintering/field-assisted sintering technology (SPS/FAST)

Abstract

High-density SiC-TiB2 composites were fabricated using the displacement reaction spark plasma sintering/field-assisted sintering technology (SPS/FAST) and SiC, B4C, TiC, and Si powders. The reaction process was performed in a narrow time frame compared hot pressing. The SiC-TiB2 composites were sintered with precursor SiC at various pressures to determine the effects of processing with SPS/FAST. The composites completed synthesis during SPS/FAST processing, which occurs more quickly than hot pressing. SEM, STEM, and Raman spectroscopy are used to show the conversion and microstructure. Finally, the composite of 53.6 wt.% SiC and 46.4 wt.% TiB2 has 99 % theoretical density, hardness of 26.4 GPa, and fracture toughness of 5.12 MPa m1/2.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1607226
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the European Ceramic Society
Additional Journal Information:
Journal Volume: 40; Journal Issue: 4; Journal ID: ISSN 0955-2219
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ceramic composites; reaction bonding; spark plasma sintering

Citation Formats

Cramer, Corson, Mcmurray, Jake W., Lance, Michael J., and Lowden, Richard Andrew. Reaction-bond composite synthesis of SiC-TiB2 by spark plasma sintering/field-assisted sintering technology (SPS/FAST). United States: N. p., 2019. Web. https://doi.org/10.1016/j.jeurceramsoc.2019.11.061.
Cramer, Corson, Mcmurray, Jake W., Lance, Michael J., & Lowden, Richard Andrew. Reaction-bond composite synthesis of SiC-TiB2 by spark plasma sintering/field-assisted sintering technology (SPS/FAST). United States. https://doi.org/10.1016/j.jeurceramsoc.2019.11.061
Cramer, Corson, Mcmurray, Jake W., Lance, Michael J., and Lowden, Richard Andrew. Wed . "Reaction-bond composite synthesis of SiC-TiB2 by spark plasma sintering/field-assisted sintering technology (SPS/FAST)". United States. https://doi.org/10.1016/j.jeurceramsoc.2019.11.061. https://www.osti.gov/servlets/purl/1607226.
@article{osti_1607226,
title = {Reaction-bond composite synthesis of SiC-TiB2 by spark plasma sintering/field-assisted sintering technology (SPS/FAST)},
author = {Cramer, Corson and Mcmurray, Jake W. and Lance, Michael J. and Lowden, Richard Andrew},
abstractNote = {High-density SiC-TiB2 composites were fabricated using the displacement reaction spark plasma sintering/field-assisted sintering technology (SPS/FAST) and SiC, B4C, TiC, and Si powders. The reaction process was performed in a narrow time frame compared hot pressing. The SiC-TiB2 composites were sintered with precursor SiC at various pressures to determine the effects of processing with SPS/FAST. The composites completed synthesis during SPS/FAST processing, which occurs more quickly than hot pressing. SEM, STEM, and Raman spectroscopy are used to show the conversion and microstructure. Finally, the composite of 53.6 wt.% SiC and 46.4 wt.% TiB2 has 99 % theoretical density, hardness of 26.4 GPa, and fracture toughness of 5.12 MPa m1/2.},
doi = {10.1016/j.jeurceramsoc.2019.11.061},
journal = {Journal of the European Ceramic Society},
number = 4,
volume = 40,
place = {United States},
year = {2019},
month = {11}
}

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