Ceramic-based composite material system on surface of unmanned aerial vehicle and preparation method of ceramic-based composite material system

Abstract

The invention discloses a ceramic-based composite material system on the surface of an unmanned aerial vehicle and a preparation method of the ceramic-based composite material system. The ceramic-based composite material system comprises a ceramic-based composite material matrix which covers the surface of a fuselage of the unmanned aerial vehicle; a bonding layer, an oxygen barrier layer, an oxygen barrier propagation layer, a thermal expansion coefficient buffer layer and a heat insulation cooling layer are sequentially deposited on the ceramic-based composite material matrix; wherein the thickness of the bonding layer is 100-200 [mu] m, the thickness of the oxygen propagation prevention layer is 30-50 [mu] m, the thickness of the thermal expansion coefficient buffer layer is 30-50 [mu] m, and the thickness of the heat insulation cooling layer is 100-1000 [mu] m. The ceramic-based composite material system prepared by the invention has a coating with remarkable high-temperature resistance, high heat insulation, oxidation resistance and high oxygen resistance, so that the ceramic-based composite material system can be used for a long time in high-temperature fire rescue, the service temperature exceeds 1000 DEG C, and the temperature of internal parts of a fire scene rescue unmanned aerial vehicle is ensured to be below the limit working temperature; and meanwhile, the surface-layer ceramic-based composite ceramic material has extremely high oxidation resistance.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a ceramic matrix composite material system for the surface of an unmanned aerial vehicle and a preparation method thereof. Background technique [0002] With the in-depth research and application of unmanned aerial vehicles, its maximum take-off weight has reached more than 10 tons. Using unmanned low-altitude aerial vehicles at fire rescue sites to perform tasks such as fire fighting, personnel rescue, communication connections, and material delivery can effectively reduce traditional The danger of pilots performing missions, while unmanned low-altitude aircraft is small in size, easy to operate, and less restrictive to the take-off site when carrying out fire rescue in cities, which is more suitable for modern development trends. However, in order to effectively reduce the weight of the aircraft itself, increase the material it can carry. However, in the prior art, different...

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Problems solved by technology

[0004] The present invention provides a ceramic-based composite material system for the surface of an unmanned aerial vehicle and a preparation method thereof, so as to solve the problem that the surface material of the fuselage of a fire rescue unmanned aerial vehicle cannot withstand high temperature and anti-oxidation, and the ceramic-based composite material is difficult to apply at high temperature; The invention enables the working temperature of silicon carbide fiber-reinforced silicon carbide, carbon fiber-reinforced carbon, carbon fiber-reinforced silicon carbide, and silicon carbide fiber-reinforced carbon-ceramic-based composite materials to exceed 1000°C in the air, and related rescue drones can be used at fire rescue sites long service work

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