TY - JOUR
T1 - Synthesis of medium-entropy (Zr1/3Hf1/3Ta1/3)B2 using the spark plasma consolidation of diboride powders
AU - DEMIRSKYI, Dmytro
AU - SUZUKI, Tohru S.
AU - YOSHIMI, Kyosuke
AU - VASYLKIV, Oleg
N1 - Funding Information:
Acknowledgments D.D. was supported by World Premier International Research Center Initiative (WPI), MEXT, Japan.
Publisher Copyright:
© 2020 Ceramic Society of Japan. All rights reserved.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - In this study, we introduce a simple and effective method for producing a ternary solid-solution of diborides, a medium-entropy Zr1/3Hf1/3Ta1/3B2. Using commercially available diboride powders with equimolar ratio and performing spark plasma consolidation at 1927°C we demonstrate that single-phase medium-entropy ceramic can be consolidated using an hour-long procedure. The flexural strength and fracture toughness at room temperature were 318 ?14MPa and 2.9MPam1/2, respectively. ?020 The Ceramic Society of Japan.
AB - In this study, we introduce a simple and effective method for producing a ternary solid-solution of diborides, a medium-entropy Zr1/3Hf1/3Ta1/3B2. Using commercially available diboride powders with equimolar ratio and performing spark plasma consolidation at 1927°C we demonstrate that single-phase medium-entropy ceramic can be consolidated using an hour-long procedure. The flexural strength and fracture toughness at room temperature were 318 ?14MPa and 2.9MPam1/2, respectively. ?020 The Ceramic Society of Japan.
KW - Flexural strength
KW - Medium-entropyceramics
KW - Spark plasma sintering
KW - Ultra-high temperature ceramics
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U2 - 10.2109/jcersj2.20151
DO - 10.2109/jcersj2.20151
M3 - Article
AN - SCOPUS:85096244411
SN - 1882-0743
VL - 128
SP - 977
EP - 980
JO - Journal of the Ceramic Society of Japan
JF - Journal of the Ceramic Society of Japan
IS - 11
ER -