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Title: Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties

Abstract

Commercial zirconium carbide (ZrC) powder is consolidated by Spark Plasma Sintering (SPS). Processing temperatures range from 1650 to 2100 °C. Specimens with various density levels are obtained when performing single-die SPS at different temperatures. Besides the single-die tooling setup, a double-die tooling setup is employed to largely increase the actual applied pressure to achieve higher densification in a shorter processing time. In order to describe the densification mechanism of ZrC powder under SPS conditions, a power-law creep constitutive equation is utilized, whose coefficients are determined by the inverse regression of the obtained experimental data. The densification of the selected ZrC powder is shown to be likely associated with grain boundary sliding and dislocation glide controlled creep. Transverse rupture strength and microhardness of sintered specimens are measured to be up to 380 MPa and 24 GPa, respectively. Mechanical properties are correlated with specimens’ average grain size and relative density to elucidate the co-factor dependencies.

Authors:
 [1];  [2];  [2];  [3];  [4];  [5]
  1. San Diego State Univ., CA (United States). Dept. of Mechanical Engineering
  2. General Atomics, San Diego, CA (United States)
  3. National Research Tomsk Polytechnic Univ., Tomsk (Russian Federation)
  4. United States Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ (United States)
  5. San Diego State Univ., CA (United States). Dept. of Mechanical Engineering; National Research Tomsk Polytechnic Univ., Tomsk (Russian Federation)
Publication Date:
Research Org.:
San Diego State Univ., CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1455149
Grant/Contract Number:  
SC0008581
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 9; Journal ID: ISSN 1996-1944
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; zirconium carbide (ZrC); spark plasma sintering (SPS); power-law creep (PLC); transverse rupture strength (TRS); microhardness (Hv)

Citation Formats

Wei, Xialu, Back, Christina, Izhvanov, Oleg, Khasanov, Oleg, Haines, Christopher, and Olevsky, Eugene. Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties. United States: N. p., 2015. Web. doi:10.3390/ma8095289.
Wei, Xialu, Back, Christina, Izhvanov, Oleg, Khasanov, Oleg, Haines, Christopher, & Olevsky, Eugene. Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties. United States. doi:10.3390/ma8095289.
Wei, Xialu, Back, Christina, Izhvanov, Oleg, Khasanov, Oleg, Haines, Christopher, and Olevsky, Eugene. Thu . "Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties". United States. doi:10.3390/ma8095289. https://www.osti.gov/servlets/purl/1455149.
@article{osti_1455149,
title = {Spark Plasma Sintering of Commercial Zirconium Carbide Powders: Densification Behavior and Mechanical Properties},
author = {Wei, Xialu and Back, Christina and Izhvanov, Oleg and Khasanov, Oleg and Haines, Christopher and Olevsky, Eugene},
abstractNote = {Commercial zirconium carbide (ZrC) powder is consolidated by Spark Plasma Sintering (SPS). Processing temperatures range from 1650 to 2100 °C. Specimens with various density levels are obtained when performing single-die SPS at different temperatures. Besides the single-die tooling setup, a double-die tooling setup is employed to largely increase the actual applied pressure to achieve higher densification in a shorter processing time. In order to describe the densification mechanism of ZrC powder under SPS conditions, a power-law creep constitutive equation is utilized, whose coefficients are determined by the inverse regression of the obtained experimental data. The densification of the selected ZrC powder is shown to be likely associated with grain boundary sliding and dislocation glide controlled creep. Transverse rupture strength and microhardness of sintered specimens are measured to be up to 380 MPa and 24 GPa, respectively. Mechanical properties are correlated with specimens’ average grain size and relative density to elucidate the co-factor dependencies.},
doi = {10.3390/ma8095289},
journal = {Materials},
number = 9,
volume = 8,
place = {United States},
year = {Thu Sep 10 00:00:00 EDT 2015},
month = {Thu Sep 10 00:00:00 EDT 2015}
}

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Cited by: 18 works
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Works referenced in this record:

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