Detonation synthesis of superhard materials
This article demonstrates how the high pressures and temperatures generated by solid explosive detonation can be directly utilized to synthesize superhard materials. The pressures and temperatures developed upon detonation, the size of the zone, and the chemical reaction time depend mainly on the power of the explosion and the density of the charge. The partial fusion of carbon or boron nitride with subsequent crystallization of diamond or the cubic boron nitride phase from the melt is considered. It is concluded that the detonation synthesis of superhard materials is distinguished by simplicity, quite high efficiency of conversion of original material into end product (up to 50%), the possibility of accomplishing synthesis in explosion chambers, and the possibility of superhard material production using automation techniques.
- Research Organization:
- Chernogolovka, USSR
- OSTI ID:
- 5941768
- Journal Information:
- Combust., Explos. Shock Waves (Engl. Transl.); (United States), Vol. 19:5; Other Information: Translated from Fizika Goreniya i Vzryva, Vol. 19, No. 5, pp. 158-160, September-October, 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BORON NITRIDES
EXPLOSIVE FORMING
SYNTHESIS
DIAMONDS
AUTOMATION
CHEMICAL REACTION KINETICS
CRYSTALLIZATION
DENSITY
DETONATIONS
EFFICIENCY
EXPLOSIVES
PRESSURE DEPENDENCE
TEMPERATURE DEPENDENCE
BORON COMPOUNDS
CARBON
ELEMENTAL MINERALS
ELEMENTS
FABRICATION
KINETICS
MATERIALS WORKING
MINERALS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PNICTIDES
REACTION KINETICS
360601* - Other Materials- Preparation & Manufacture
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication