Carbon fiber is known as a new inorganic material. It has a series of excellent properties such as high specific strength, high specific modulus, high temperature resistance, corrosion resistance, fatigue resistance, radiation resistance, conductivity, heat transfer, shock absorption and noise reduction. As a typical high performance fiber, carbon fiber is widely used as a reinforcing fiber of advanced resin matrix composites. At present, its application field is mainly in aviation and aerospace. It can greatly reduce the weight of prefabricated parts and further improve the technical performance.

Photoelectrochemical hydrogen evolution technology is a new energy technology. It combines photoelectric conversion process with hydrogen evolution process. Solar energy can be converted into electric energy. It can be further used to prepare hydrogen from electrolytic water by hydrogen evolution catalyst. It has great development potential.

There are a large number of X, gamma rays and neutrons in the radiation field environment of nuclear power plants and nuclear power plants. In order to ensure absolute safety, these X, gamma rays and neutrons need high-density radiation shielding materials. At present, the commonly used materials are lead-boron polyethylene, boron-containing polypropylene, cadmium plate, boron steel, tungsten-based heavy alloy, boron carbide and aluminum-based boron carbide. The above materials are only lead-boron polyethylene. Material can shield x, gamma rays and neutrons at the same time. Other materials can only shield one of the x, gamma rays or neutrons.

Tungsten-copper composite material is a pseudo-alloy composed of tungsten (high melting point, high hardness ) and copper (high conductivity and thermal conductivity). It is an excellent material to be applied in electrical contacts and electrodes. The combination of low-expansion-coefficient tungsten and high-conductivity copper can be applied to heat sink substrates of airtight packaging such as CPU, IC, solid state microwave tube, radio communication device. It is also used in ultra high voltage electrical contact materials and nozzles. Throat liner, electron beam target and plasma-oriented divertor material.