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With the development of smartphones, more and more demands have been placed on mobile phone materials. The back cover of zirconium oxide ceramics is popular because of its excellent performance, but it is difficult to popularize because of its high cost and low production capacity. The following are some reasons why zirconia cell phone covers are difficult to be popularized at this stage.

Zirconia ceramics have the highest cost in terms of cost, followed by metal, and glass is the cheapest. A piece of zirconium oxide back cover is expected to cost about $30, and a piece of 2.5-d glass costs about $4. In terms of production capacity, zirconia ceramics are currently subject to the production capacity restrictions of powders, resulting in the limited capacity of the back cover, which cannot meet the demand of hundreds of millions of mobile phones.

The back cover of zirconia ceramics adopts precision ceramic processing technology, and its material production and processing technology are complicated, which usually consists of dozens of processes control and material control, mainly including upstream powder materials, mid-stream molding/sintering, and post-processing, and there are countless options at each stage. After sintering, the finishing grinding treatment can only improve the surface performance. In order to ensure the size and precision of finished products, the shrinkage and consistency of materials, raw porcelain and sintering should be considered, and repeated experiments and improvements should be made, the technical know-how presented in which constitutes a huge threshold for the manufacture of zirconia ceramic cover.

Material process

Doped and modified with rare earth elements on the basis of advanced nano-zirconium oxide powders, chemical adhesives and other materials are added to form a viscous solution with the organic solvent as a carrier.

Sintering process

The control of the temperature curve and the atmosphere is the key to product quality. In the post-sintering process, the finished porcelain is grinded and modified according to the different products to ensure the consistency of its performance and physical structure.

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