The uses and characteristics of zirconia ceramics in the automotive field

Release time：2024-09-11click：0

Auto parts are made of various materials, including plastic, steel or ceramics. Zirconium oxide ceramic The advantages of the material are fully realized in automobiles, because many parts of automobiles are made of this material, such as engines, sensors, brakes, shock absorbers, etc. All are involved in the installation. Let’s take a look at the ceramic parts of new energy vehicles.

First, let’s briefly introduce the characteristics of zirconia ceramics. Zirconia ceramics are sintered from inorganic non-metals such as zirconia and yttrium oxide. Therefore, compared with the alumina ceramics used in the past, the strength and high temperature resistance have been significantly improved, further improving its application in the automotive field. application effect.

Engine
Automobile engines made of traditional materials have serious heat loss problems. In order to reduce this loss, it is necessary to use zirconia ceramic materials with good thermal insulation properties to surround the combustion chamber for heat insulation, and then use exhaust gas turbochargers and power turbines to recycle the heat. Exhaust energy, thereby effectively improving the efficiency of the car engine.

Sensor
The basic requirements for automotive sensors are that they must be able to be used in the harsh environment unique to automobiles for a long time, and they must also be small and lightweight, have good reusability, and have a wide output range. Sensors made of zirconia ceramics just meet the above requirements, because ceramics are heat-resistant, corrosion-resistant, wear-resistant and have potentially excellent electromagnetic and optical properties.

Brake
Zirconia ceramic brakes are also made on the basis of carbon fiber brakes. They have gone through multiple processes such as pressing, heating, carbonization, heating, and cooling. Because the hardness of the carbon silicon compound surface of this type of brake is close to diamond, it is impact resistant. , The corrosion resistance is very outstanding.

Car spraying
In recent years, zirconia ceramic materials have also been widely used in automobile spraying technology. Engines treated in this way can reduce heat dissipation loss, reduce the weight of the engine itself, reduce engine size, and reduce fuel consumption. In addition, smart ceramic materials, as a type of zirconia ceramics, have also become the focus of attention. The combination of functional materials, drive systems and feedback systems in automobilesSmart material systems or structures are made using this material.

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