Cladding Cubic Boron Nitride Powder with Titanium Compounds

2021 ◽  
Author(s):  
L. P. Rudenok ◽  
S. A. Suvorov ◽  
V. I. Rumyantsev
Keyword(s):  
Boron Nitride ◽  
Cubic Boron Nitride ◽  
Nitride Powder ◽  
Boron Nitride Powder ◽  
Titanium Compounds

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.

Boron nitride powder coating of ampoule for Bridgman-grown CuInSe2

1993 ◽  
Vol 129 (1-2) ◽  
pp. 107-110 ◽  
Author(s):  
Z.A. Shukri ◽  
C.H. Champness ◽  
I. Shih
Keyword(s):  
Boron Nitride ◽  
Powder Coating ◽  
Nitride Powder ◽  
Boron Nitride Powder

A Search for Positronium Production at a Monolayer Surface on Boron Nitride Powder

1992 ◽  
Vol 105-110 ◽  
pp. 1351-1354
Author(s):  
I.Y. Al-Qaradawi ◽  
F.A. El Khangi ◽  
P.C. Rice-Evans
Keyword(s):  
Boron Nitride ◽  
Nitride Powder ◽  
Boron Nitride Powder
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