TY - JOUR
T1 - Spark plasma sintering of TiC-ZrC composites
AU - Li, Ying
AU - Katsui, Hirokazu
AU - Goto, Takashi
N1 - Funding Information:
This research was partially supported by the China Scholarship Council (CSC), China, the educational project “Excellent Graduate Schools for Materials Integration Center”, Tohoku University and the Tohoku University President Fellowship .
Publisher Copyright:
© 2015 Elsevier Ltd and Techna Group S.r.l.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - TiC-ZrC composites were consolidated from TiC and ZrC powders by spark plasma sintering (SPS) at 1500-2200 °C. For sintering temperatures above 1800 °C, the sintered bodies with TiC compositions of 60-90 mol% were densified to relative densities above 95%. For sintering temperatures below 1900 °C, the sintered bodies were composed of Ti- and Zr-rich solid solutions, (Ti, Zr)C; at high temperatures above 2000 °C, they formed a single-phase (Ti, Zr)C. Above 2000 °C, the single-phase (Ti, Zr)C had a uniform morphology. The single-phase (Ti, Zr)C and the composites of Ti- and Zr-rich (Ti, Zr)C for TiC compositions greater than 80 mol% exhibited values of Vickers hardness above 26 GPa.
AB - TiC-ZrC composites were consolidated from TiC and ZrC powders by spark plasma sintering (SPS) at 1500-2200 °C. For sintering temperatures above 1800 °C, the sintered bodies with TiC compositions of 60-90 mol% were densified to relative densities above 95%. For sintering temperatures below 1900 °C, the sintered bodies were composed of Ti- and Zr-rich solid solutions, (Ti, Zr)C; at high temperatures above 2000 °C, they formed a single-phase (Ti, Zr)C. Above 2000 °C, the single-phase (Ti, Zr)C had a uniform morphology. The single-phase (Ti, Zr)C and the composites of Ti- and Zr-rich (Ti, Zr)C for TiC compositions greater than 80 mol% exhibited values of Vickers hardness above 26 GPa.
KW - C. Hardness
KW - Solid solution
KW - Spark plasma sintering
KW - Titanium carbide
KW - Zirconium carbide
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U2 - 10.1016/j.ceramint.2015.02.019
DO - 10.1016/j.ceramint.2015.02.019
M3 - Article
AN - SCOPUS:84925140767
VL - 41
SP - 7103
EP - 7108
JO - Ceramics International
JF - Ceramics International
SN - 0272-8842
IS - 5
ER -