Chinese scientists have developed a unique heat-resistant material for hypersonic aircraft that can withstand temperatures of over 3000 °With for a long time.
The new composite, created by researchers at Central South University, outperforms other existing high melting point materials. The material allows a hypersonic vehicle to fly 5-20 times faster than the speed of sound for several hours.
In such conditions, from friction with the atmosphere, the skin temperature rises to 2000-3000 °C, and common metals begin to melt when they reach 1500 °FROM.
Stability at more 3000 °C was achieved due to the unique composition of the composite. Like other analogs, it also contains refractory metals, but the Chinese technology uses ceramics instead of carbon materials. This combination increases the efficiency of the material.. Additionally, the material has a low density and high ductility..
The inventors themselves compare it to concrete, saying that ceramics can be thought of as rubble or reinforcement, and refractory metals play the role of cement. At high temperatures, ceramics act as reinforcement that holds metals so they do not soften or deform».
Recently, the Chinese news agency Xinhua reported that the university is also working on a project to increase the speed of civil aircraft fivefold, so that all domestic flights last no more than two hours..
It is not yet known whether the new material was used in testing new technology..
The Future of Hypersonic Planes
Previously scientists from nine research institutes have jointly created a very lightweight and durable ceramic material that can withstand high heat, huge temperature fluctuations and is highly flexible.
text: Ilya Bauer, photo: tomatoz