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.
| Original language | English |
|---|---|
| Pages (from-to) | 6043-6061 |
| Number of pages | 19 |
| Journal | Materials |
| Volume | 8 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2015 |
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Keywords
- Microhardness (Hv)
- Power-law creep (PLC)
- Spark plasma sintering (SPS)
- Transverse rupture strength (TRS)
- Zirconium carbide (ZrC)
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Spark plasma sintering of commercial zirconium carbide powders : Densification behavior and mechanical properties. / Wei, Xialu; Back, Christina; Izhvanov, Oleg; Khasanov, Oleg L.; Haines, Christopher D.; Olevsky, Eugene A.
In: Materials, Vol. 8, No. 9, 2015, p. 6043-6061.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spark plasma sintering of commercial zirconium carbide powders
T2 - Densification behavior and mechanical properties
AU - Wei, Xialu
AU - Back, Christina
AU - Izhvanov, Oleg
AU - Khasanov, Oleg L.
AU - Haines, Christopher D.
AU - Olevsky, Eugene A.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
KW - Microhardness (Hv)
KW - Power-law creep (PLC)
KW - Spark plasma sintering (SPS)
KW - Transverse rupture strength (TRS)
KW - Zirconium carbide (ZrC)
UR - http://www.scopus.com/inward/record.url?scp=84946208737&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946208737&partnerID=8YFLogxK
U2 - 10.3390/ma8095289
DO - 10.3390/ma8095289
M3 - Article
VL - 8
SP - 6043
EP - 6061
JO - Materials
JF - Materials
SN - 1996-1944
IS - 9
ER -