Ceramic components are widely used in 3C electronic fields such as mobile phones because of their advantages of no signal shielding, anti-drop, wear resistance, anti-folding, warm and smooth appearance, good feel, etc. Mainly used as a mobile phone backplane and other mobile phone structural components.

Smart terminal ceramics generally refers to a variety of precision ceramic materials and appearance structural parts used in the field of consumer electronics smart terminal products, smart terminal products mainly include smart phones, smart watches, smart bracelets, smart glasses and other wearable devices. The application of smart terminal ceramics in smart wear includes the ceramic case on the smart watch, the ceramic watch chain, the ceramic back cover, and the appearance ceramic parts on the smart bracelet, Bluetooth headset and necklace. Therefore, it can be said that intelligent terminal ceramics integrate the functional, aesthetic and artistic characteristics of ceramic materials.

The most widely used materials for intelligent terminal ceramics are nano-zirconia ceramics with high strength and high toughness, which is a class of phase-change toughened ceramics by introducing stabilizers such as Y2O3 in the ZrO2 lattice. It is found that the mechanical properties of zirconia ceramics doped with Y2O3 as stabilizer are more excellent. At the same time, zirconia ceramics have excellent wear resistance, scratch resistance, corrosion resistance, no allergy to the skin, good skin affinity, comfortable to wear and so on. By introducing one or more other colored ions to it, dozens of beautiful colors such as black, blue, dark green can be obtained, and it has the advantages of warm appearance and good feel. Therefore, intelligent terminal ceramics represented by nano-zirconia are widely used in smart wearable devices.

The ceramic materials used to make the back of the mobile phone are zirconia, alumina, silicon carbide and so on. In all ceramic materials, zirconia ceramics in addition to high strength, high hardness, acid and alkali corrosion resistance and high chemical stability and other advantages, while with scratch resistance, no signal shielding, excellent heat dissipation performance, good appearance and other characteristics, it has become the most popular mobile phone body material, more importantly, zirconia toughness, drop resistance.