Results 1 to 10 of about 1,161 (209)
Some of the next articles are maybe not open access.
Processing and properties of polycrystalline cubic boron nitride reinforced by SiC whiskers
International Journal of Applied Ceramic Technology, 2018Abstract Dense polycrystalline cBN (Pc BN )–SiCw composites were fabricated by a two‐step method: First, SiO 2 was coated on the surface of cubic boron nitride ( cBN ) particles by the sol‐gel ...
Jian Li +5 more
openaire +1 more source
Thermal Conductivity of Polycrystalline Cubic Boron Nitride Compacts
1979Slack [1] predicts a room temperature thermal conductivity of about 13 W/cm°C for single-crystal cubic boron nitride with only diamond having a higher conductivity among the high thermal conductivity adamantine Compounds. However, no crystals of cubic BN were available that were large enough to measure the thermal conductivity, and the highest value ...
openaire +1 more source
Effect of grain boundaries on iron distribution in polycrystalline cubic boron nitride
Journal of Physics: Condensed Matter, 2002The influence of grain boundaries on local electronic states and the distribution of 57Fe ions in cubic boron nitride (c-BN) polycrystals has been investigated as a function of technological processing. The study was performed on two sets of c-BN samples: (1) prepared by catalytic synthesis and (2) synthesized by direct phase transformation.
J A Fedotova +3 more
openaire +1 more source
Inorganic Materials: Applied Research, 2016
The effect of the thermochemical modification of hexagonal BN micropowders with aluminum on the synthesis of cubic-BN-based polycrystals after attritor processing is studied. It is found that the preliminary hBNattr modification with aluminum reduces the parameters of the hBN → cBN phase transformation, namely, p and T, and results in the formation of ...
V. T. Senyut +5 more
openaire +1 more source
The effect of the thermochemical modification of hexagonal BN micropowders with aluminum on the synthesis of cubic-BN-based polycrystals after attritor processing is studied. It is found that the preliminary hBNattr modification with aluminum reduces the parameters of the hBN → cBN phase transformation, namely, p and T, and results in the formation of ...
V. T. Senyut +5 more
openaire +1 more source
Tool-wear mechanisms in hard turning with polycrystalline cubic boron nitride tools
Wear, 2001Hard turning is a turning operation performed on high strength alloy steels (45 < HRC < 65) in order to reach surface roughness close to those obtained in grinding (R ∼ 0.1 μm). Extensive research being conducted on hard turning has so far addressed several fundamental questions concerning chip formation mechanisms, tool-wear, surface integrity and ...
G. Poulachon, A. Moisan, I.S. Jawahir
openaire +1 more source
A Review of Polycrystalline Cubic Boron Nitride Cutting tool Developments and Application
1993This paper reviews published literature on the manufacture and application of polycrystalline cubic boron nitride (PCBN) cutting tools. More specifically, it details the various commercial CBN products, their composition/microstructure and physical properties, together with workpiece/material applications and associated machinability data. In addition,
A. M. Abrão +2 more
openaire +1 more source
Polycrystalline Diamond and Cubic Boron Nitride
1994Ernest Ratterman, Harold P. Bovenkerk
openaire +1 more source