Abstract:
The possibility of creating single-crystalline materials in the boron-carbon-nitrogen system has been studied. The thermal conductivity of composites obtained by sintering a mixture of natural microcrystalline diamond powder with cubic boron nitride at high pressures (up to 7 GPa) and high temperatures (up to 2600$^\circ$C) has been measured. To within sensitivity of the X-ray diffraction, no new C–N and/or B–C–N compounds are formed at the interphase boundaries in the system under consideration.
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