FIELD: production of composites with specific physico-chemical properties in vacuum; designing and production of special-purpose heat-resistant materials for protection of recoverable spacecraft, blades of gas-turbine engines of new generation.
SUBSTANCE: proposed method includes sedimentation of layers on preheated rotating substrate in vacuum. Sedimentation of layers of material is performed by boiling-off material from crucibles at their center-to-center distance of 0.55 to 0.8 of substrate diameter. Distance between crucibles and substrate is equal to 0.55-0.8 of crucible center-to-center distance. Temperature of substrate is no less than 0.3 of melting point of the most refractory material being boiled-off. Level of substrate roughness does not exceed 0.63RA. At interface of layers, thickness ranges from 0.001 to 0.005 mcm at smooth concentrated change from material of one layer to material of another layer.
EFFECT: wide field of varying structural and physico-mechanical properties of materials; enhanced thermal stability of structure.
16 dwg, 2 tbl
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Authors
Dates
2006-03-10—Published
2004-04-27—Filed