Title: | Diamond - tungsten carbide nanocomposite |
Type of product: | Release of new product: material |
Description: | A method of producing nanocomposite diamond-tungsten carbide by the HPHT sintering of statically synthesized diamond nanopowder ASM5 0.1/0 with the addition of nanoparticles obtained by the electrospark dispersion of tungsten in ethanol has been developed. During the sintering diamond reacts with tungsten. Tungsten carbide nanoparticles chemically bonded to the diamond are formed in the interstices between the diamond nanoparticles. High hardness (HV5 = 24 GPa), fracture toughness (KIC = 7.0 MPa·m^1/2) and thermal stability (at 1100 ° Kts = 0.86) are combined in the composite. The studies of cutting properties and damping characteristics showed the suitability of the nanocomposite diamond - tungsten carbide working element to discontinuous turning. During the finishing turning of aluminum alloys with composite cutter at depth of cut < 0. 25 mm/rev and cutting speed < 4. 5 m/s the surface roughness Ra = 0.4 µm and the waviness Raw = 0.7 µm are achieved. |
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The impact on the environment. Environment: | |
The stage of completion: | Report on R & D (OCD) |
Implementation: | not implemented |
Intellectual Property Rights: | By treaty |
Forms and conditions of transfer of products: | Collaborative research (ROC) |