The application of ceramics in automobile engines

The new ceramic is sintered from inorganic non-metals such as zirconia. Compared with the alumina ceramics used in the past, zirconia ceramics are more than three times stronger and can withstand high temperatures of more than 1,000. New materials are advancing the development of new applications for automobiles.

Therefore, in order to reduce this part of the loss, experiments have shown that by enclosing the combustion chamber with ceramic materials with good thermal insulation properties for insulation, and recovering exhaust energy with exhaust turbochargers and power turbines, the thermal efficiency can be increased to 48% . Zirconia ceramic parts and zirconia ceramic parts at the same time, through the use of new ceramics, diesel engines can be quickly started instantly. The turbocharger using the new ceramic has better heat resistance than the current superalloy, but the specific gravity is only about one third of that of the metal turbine.

Therefore, the new ceramic turbine can compensate for the low dynamic response of the metal turbine. In addition, the use of new ceramic piston pins and piston rings and other moving parts is also being studied. By reducing the weight, an improvement in engine efficiency can be expected.