Zirconia ceramics is a new type of high-tech ceramics. In addition to the high strength, hardness, high temperature resistance, acid and alkali corrosion resistance and high chemical stability of precision ceramics, it also has higher toughness than ordinary ceramics.

Why is zirconia ceramics about to become popular in electronic products? It can be seen from the three directions of entering consumer electronics, as follows:

1.Zirconia ceramics can be used in various industries, such as shaft seal bearings, cutting components, molds, auto parts, etc., and can even be used on the human body. In the consumer electronics field, zirconia ceramics have a hardness close to that of sapphire, but the total cost is less than 1/4 of sapphire. Its bending resistance is higher than that of glass and sapphire. It is non-conductive and does not shield signals, so it is subject to fingerprint recognition modules. Tablets and mobile phone back panels are welcome.

2. Judging from the current shipment situation of mobile phone appearance parts of various materials in the industry, the penetration rate of zirconia ceramics is less than 1%, which is in the incubation period before the outbreak of demand. With the hot sales of Xiaomi Mi 5 and Huawei, OPPO With the participation of key downstream manufacturers, the market for zirconia ceramic exterior parts has begun. It is expected to be promoted in the high-end mobile phone market in the next two to three years.

3. There are three subdivision directions for zirconia ceramics entering consumer electronics represented by mobile phones. The main application area is the back cover, which is mainly to upgrade and supplement plastic, glass, and metal materials. The second is the patch for fingerprint recognition or the casing of wearable devices, which mainly benefit from the increase in the installation rate of fingerprint readers and the replacement of sapphire. Finally, it is used for small structural parts such as lock screen and volume keys, which is a continuation of the ceramic button business that existed in the era of feature phones.

4. In the field of smart watches, Apple Watch adopted a ceramic back cover when it was born, which has set a model for other manufacturers. In addition, wearable devices such as smart watches have been worn on the body for a long time, which requires high skin-friendly back cover materials. Ceramics fit exactly this characteristic. Therefore, the penetration rate of the ceramic back cover of smart watches reached 50% in 2019, and the penetration rate is expected to reach more than 85% by 2020. It is estimated that by 2021, the global ceramic back cover market for smart phones and smart watches will exceed 30 billion RMB.

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