The current jet gas turbine engine is capable of accelerating a multi-ton vehicle in the air to high speeds in a matter of minutes, or even seconds. The aircraft power unit operates in extreme conditions, at high temperatures. The hotter the gas used in the turbine, the stronger and more reliable the engine operates, the more economical it is. The “recommended” temperature is from 1000°C. It is clear that the materials from which the engine is made must be designed for such “extreme”.
In Russia they are seriously doing this. One of the specialized organizations is the Institute of Aviation Materials (VIAM). This is where all the turbine parts are calculated. One of its main elements is the shoulder blades: they take the brunt of the heat shock. Today they can withstand up to 1200°C at the inlet. Surprisingly, but true: the melting point of the material from which they are made is approximately 400°C lower. Why do the shoulder blades remain intact? This phenomenon is the result of many years of work by scientists.
The challenge facing aircraft designers around the world today is to increase the temperature inside the turbine. This means that you will need blades made of a special material. And VIAM has been taking concrete steps in this direction for a long time. Which? What are blades made of today? You will learn about this by watching the video, kindly provided by the Anatomy of Monsters channel.
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