Pulse electric current sintering of cubic boron nitride/tungsten carbide–cobalt (cBN/WC–Co) composites: Effect of cBN particle size and volume fraction on their microstructure and properties

2014 ◽  
Vol 607 ◽  
pp. 490-497 ◽  
Author(s):  
Bo Wang ◽  
Yi Qin ◽  
Feng Jin ◽  
Jian-Feng Yang ◽  
Kozo Ishizaki
Keyword(s):  
Particle Size ◽  
Boron Nitride ◽  
Tungsten Carbide ◽  
Electric Current ◽  
Volume Fraction ◽  
Cubic Boron Nitride ◽  
Microstructure And Properties ◽  
Pulse Electric Current ◽  
Pulse Electric

Effects of heating rate and particle size on pulse electric current sintering of alumina

2003 ◽  
Vol 48 (12) ◽  
pp. 1631-1636 ◽  
Author(s):  
You Zhou ◽  
Kiyoshi Hirao ◽  
Yukihiko Yamauchi ◽  
Shuzo Kanzaki
Keyword(s):  
Particle Size ◽  
Electric Current ◽  
Heating Rate ◽  
Pulse Electric Current ◽  
Pulse Electric

Heterogeneous of Non-Conductive Materials Sintering by Pulse Electric Current

2002 ◽  
Vol 224-226 ◽  
pp. 729-734 ◽  
Author(s):  
Dong Ming Zhang ◽  
Zheng Yi Fu ◽  
Yung Cheng Wang ◽  
Qing Jie Zhang ◽  
Jing Kun Guo
Keyword(s):  
Electric Current ◽  
Conductive Materials ◽  
Pulse Electric Current ◽  
Pulse Electric

Dynamic consolidation of cubic boron nitride and its admixtures

1988 ◽  
Vol 3 (5) ◽  
pp. 1010-1020 ◽  
Author(s):  
Hua Tan ◽  
Thomas J. Ahrens
Keyword(s):  
Particle Size ◽  
Boron Nitride ◽  
Cubic Boron Nitride ◽  
Sem Analysis ◽  
Model Calculations ◽  
Boron Nitride Powder ◽  
Dynamic Consolidation ◽  
Consolidation Model ◽  
Heating Model ◽  
Hardness Values

Cubic boron nitride (C–BN)' powders admixed with graphite-structured boron nitride powder (g-DN), silicon carbide whisker (SCW), or silicon nitride whisker (SNW) were shock compacted to pressures up to 22 GPa. Unlike previous work with diamond and graphite [D. K. Potter and T. J. Ahrens, J. Appl. Phys. 63, 910 (1987) it was found that the addition of g-BN inhibited dynamic consolidation. Good consolidation was achieved with a 4–8 μm particle size C–BN powder admixed with 15 wt.% SNW or 20 wt.% SCW whereas a 37–44 μm particle size C–BN mixture was only poorly consolidated. Scanning electron microscopy (SEM) analysis demonstrates that SCW and SNW in the mixtures were highly deformed and indicated melt textures. A skin heating model was used to describe the physics of consolidation. Model calculations are consistent with SEM analysis images that indicate plastic deformation of SCW and SNW. Micro-Vickers hardness values as high as 50 GPa were obtained for consolidated C–BN and SNW mixtures. This compares to 21 GPa for single-crystal Al2O3 and 120 GPa for diamond.

scholarly journals Fabrication of submicron alumina ceramics by pulse electric current sintering using M2+ (M=Mg, Ca, Ni)-doped alumina nanopowders

2009 ◽  
Vol 35 (5) ◽  
pp. 1845-1850 ◽  
Author(s):  
Atsushi Odaka ◽  
Tomohiro Yamaguchi ◽  
Masahiro Hida ◽  
Seiichi Taruta ◽  
Kunio Kitajima
Keyword(s):  
Electric Current ◽  
Alumina Ceramics ◽  
Pulse Electric Current ◽  
Pulse Electric
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