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intelligent ceramic materials in automobile

As the classification of special ceramic products, intelligent ceramic materials, including those used in automobile manufacturing, which are sensitive to the environment and sensitive to environmental changes, have become the research focus in the field of material science and engineering.


Intelligent ceramic products are used in automobiles, including functional materials, the combination of driving system and feedback system, intelligent material system or structure.


Because of its comprehensive functions, the automobile products can sense and respond to the changes of the external environment when driving, and the automobile products have many performances such as self inspection, self-test, self diagnosis, self repair and self-adaptive. At present, some functional ceramic products have intelligent functions, such as barium titanate positive temperature coefficient thermal resistance and zinc oxide varistor. They have the function of self diagnosis, backup protection and self repair for temperature and voltage. They can make the materials have the ability to resist sudden changes in the environment and can be used repeatedly. Intelligent ceramic system, the most important category of piezoelectric ceramics. Now it has been widely used and is planning to develop piezoelectric intelligent ceramic products and material systems as follows:

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Automobile shock absorber: the intelligent shock absorber is developed by using the positive piezoelectric effect and reverse piezoelectric effect of intelligent ceramic products. It has the function of identifying the road surface and self-adjusting. It can reduce the vibration caused by rough road surface to the minimum. The whole process of perception and adjustment only takes 20 seconds. In addition, the damping device made of intelligent ceramic material can also be used in fields other than automobile products, such as precision machining and stable working platform.


Automotive intelligent wiper: the intelligent ceramic wiper is made of barium titanate ceramic piezoresistive effect, which can automatically sense the rainfall and automatically adjust the wiper to the optimal speed.


Automotive active noise reduction ceramic material: it is composed of piezoelectric ceramic pick-up, resonator, analog acoustic coil digital signal processing integrated circuit, which can reduce the vehicle vibration frequency to less than 500 Hz.


In addition, intelligent ceramic materials can also be used to develop intelligent safety systems and intelligent transmission systems, such as airbags, which also use intelligent ceramic components. The development, research and market of modern intelligent ceramic materials are in the ascendant. At the same time, its application is not only limited to automobile industry, but also has an important impact on shipbuilding, construction, machinery, household appliances, aerospace, national defense and other industrial fields, which will greatly improve the intelligent and automation level of various mechanical and electronic products.


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