Flow line type multicolor ceramic as well as preparation method and application thereof

Abstract

The invention discloses flow line type multicolor ceramic as well as a preparation method and an application thereof. The method comprises steps as follows: (1) physical properties of at least two kinds of single-color zirconium oxide powder are characterized to obtain characterization data; (2) on the basis of the characterization data, the zirconium oxide powder with consistent physical properties is screened out; (3) the at least two kinds of single-color zirconium oxide powder which are screened out in the step (2) and have the consistent physical properties are mixed and subjected to pressing formation to obtain a multicolor powder block; (4) the multicolor powder block is subjected to isostatic cool pressing to obtain an uniform and dense multicolor powder block; (5) the uniform anddense multicolor powder block is sintered to obtain the flow line type multicolor ceramic. By means of the method, the multicolor ceramic is prepared, and the obtained flow line type multicolor ceramic has strong appearance expression force, has diversified colors and can well meet demands of all products.

Description

technical field [0001] The invention belongs to the field of ceramic preparation, in particular, the invention relates to flow pattern multi-color ceramics and its preparation method and application. Background technique [0002] Zirconia ceramics have the characteristics of high strength, high hardness, high wear resistance, scratch resistance and corrosion resistance, and its phase change toughening mechanism and thermal expansion coefficient are close to those of metals, so they are widely used in various fields. Such as cutting tools, molds, valves, refractory materials, oxygen sensors, solid fuel cells, etc. In addition to the above characteristics, zirconia ceramics have become a popular appearance shell material because of their noble texture and jade-like color. [0003] At present, the production process of monochromatic zirconia ceramic materials on the market is relatively mature, especially white and black. However, as an exterior part, not only does it have ex...

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Problems solved by technology

Among them, the optical film layer mainly forms a specific absorption effect by controlling the thickness and number of layers of the film layer. At present, Huawei’s P20 glass back shell has been processed in this way to achieve an overall gradient effect. However, the application of this process in ceramics There is no relevant report yet; color glaze is to finish glaze color or in-glaze color or under-glaze color on the surface of ceramics to obtain gorgeous patterns or bright and beautiful colors. This process has been widely used in traditional ceramics and is very mature, but The high wear resistance and scratch resistance of colored glaze ceramic parts are poor

The two-color (or multi-color) injection molding process is very mature in engineering plastics, but for ceramics, because the fluidity of the injection molding feed in the molten state is worse than that of plastics, it is easier for thin and small structural parts, but for large However, for thin products, whether it is molding or sintering, there are still huge difficulties in technical realization.

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