FIELD: metallurgy.
SUBSTANCE: method includes sealing a split compression mould by slip casting a mixture of fractions 1÷15 mcm and 35÷50 mcm of silicon carbide of hexagonal structure of 6H syngony with a binder in the form of sodium liquid glass and paraffin at a temperature of 70÷75°C and pressure 0.5÷1.0 MPa, extraction of the workpiece from the compression mould, workpiece sintering at a temperature of more than 750°C, impregnation of the workpiece with an aluminium alloy melt with a silicon content of 6÷12% in a heated mould at a temperature of 890-900°C, a pressure of 80-100 MPa for 30-50 s and crystallization by creating a temperature gradient.
EFFECT: increased specific density, heat conductivity and strength of composite material.
1 tbl, 6 ex
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Authors
Dates
2017-07-13—Published
2016-06-01—Filed