Thermal ceramics, scientifically known as UHTCs or ultra-high temperature ceramics, are a type of refractory ceramics that provide durability at temperatures beyond 2000 degrees Celsius. There is no one specific formulation, as these thermal ceramics can be borides, carbides, nitrides or oxides of metals.
Let's have a look at three distinct kinds of thermal ceramics and their applications.
- Hf based diboride thermal ceramics
This class of thermal ceramics is being developed as the skin of hypersonic air vehicles. Because of the friction generated during flight, temperatures on the surface of the vehicle to 2500 degrees Celsius. Alongside the heat is the presence of oxidizing plasma as a byproduct of the surface temperature. These thermal ceramics have the ability to protect the surface of the vehicle from the friction and protect the inner layer from the generated plasma through a reactive plasma cover.
- Zr based diboride thermal ceramics
This class of thermal ceramics is best utilized to provide linings for nuclear laced boiling water assemblies. The thermal ceramics' ability to refract thermal energy, resist corrosion, as well as their neutron absorption capacity, makes them ideal for systems powered by nuclear energy. Not only are they used for nuclear production processes, these thermal ceramics are also used in the military as well as space faring applications.
- Titanium diboride thermal ceramics
This class of thermal ceramics is ideal for the management of molten aluminum because of its refractory quality, ability to conduct electricity as well as to provide a coating for the molten aluminum. This coating provides the bridge for when aluminum is in its liquid state.
Clearly, thermal ceramics are new age materials with high technology applications. These include sheaths for hypersonic vehicles, insulation for nuclear water systems and storage for metal resources. These are but some of the samples how thermal ceramics make the world better each day.