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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(4) [August 2005] >
| Title: | Sintering of cubic boron nitride under high pressures and temperatures in the presence of boron carbide as the binding material |
| Authors: | Singhal, S K
Singh, B P |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| IPC Code: | C01B35/08, C01B31/36 |
| Abstract: | Sintering of cubic boron nitride (cBN) was carried out by subjecting fine
powders of cBN to high pressures and temperatures (P = 50-60 kb, T =
1200-1500°C ) in the presence of boron carbide as the main binding material
together with a small amount of aluminium nitride. The composites were
characterized by X-ray diffraction, scanning electron microscopy, FTIR, Raman
Spectroscopy and microhardness measurements. Best composites with a maximum
microhardness of about 3700 kg/mm2 were obtained at around 50 kb,
1450°C using 75 wt% of cBN in the mixture. No peaks due to hexagonal boron
nitride were observed in the XRD patterns. |
| Page(s): | 325-330 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(4) [August 2005]
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