TY - JOUR
T1 - Consolidation of B 4 C-TaB 2 eutectic composites by spark plasma sintering
AU - Demirskyi, Dmytro
AU - Sakka, Yoshio
AU - Vasylkiv, Oleg
N1 - Publisher Copyright:
© 2015 The Ceramic Society of Japan and the Korean Ceramic Society.
PY - 2015/12
Y1 - 2015/12
N2 - The in situ synthesis/consolidation of B 4 C-TaB 2 eutectic composites by spark plasma sintering (SPS) is reported. The microstructure-property relations were determined for composites with the B4C-TaB2 eutectic composition as functions of TaB2 content, and TaB 2 -TaB 2 interlamellar spacing. A clear maximum in fracture toughness was identified (~4.5 MPa m 1/2 ) for eutectic composites with interlamellar spacing between 0.9 and 1.1 μm. The composites with the hypereutectic composition of 40 mol.% TaB2 obtained by SPS exhibited lower Vickers hardness (25-26 GPa) but higher indentation fracture toughness (up to 4.9 MPa m 1/2 ) than eutectic composites with 30-35 mol.% of TaB 2 .
AB - The in situ synthesis/consolidation of B 4 C-TaB 2 eutectic composites by spark plasma sintering (SPS) is reported. The microstructure-property relations were determined for composites with the B4C-TaB2 eutectic composition as functions of TaB2 content, and TaB 2 -TaB 2 interlamellar spacing. A clear maximum in fracture toughness was identified (~4.5 MPa m 1/2 ) for eutectic composites with interlamellar spacing between 0.9 and 1.1 μm. The composites with the hypereutectic composition of 40 mol.% TaB2 obtained by SPS exhibited lower Vickers hardness (25-26 GPa) but higher indentation fracture toughness (up to 4.9 MPa m 1/2 ) than eutectic composites with 30-35 mol.% of TaB 2 .
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U2 - 10.1016/j.jascer.2015.08.001
DO - 10.1016/j.jascer.2015.08.001
M3 - Letter
AN - SCOPUS:84973378668
VL - 3
SP - 369
EP - 372
JO - Journal of Asian Ceramic Societies
JF - Journal of Asian Ceramic Societies
SN - 2187-0764
IS - 4
ER -