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Preparation method of ceramic composite body with high impact resistance
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A high impact resistance and composite technology, applied in the field of ceramic technology, can solve the problems of waste of resources, insufficient impact resistance, expensive mobile phone backplane, etc., and achieve the effect of reducing the possibility of brittle fracture and preventing fracture
Active Publication Date: 2022-05-31
东莞市陶陶新材料科技有限公司
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[0003] At present, most zirconia ceramic products on the market are made of a single material, that is, it has a single-layer structure, and the performance of zirconia ceramic products made of stable zirconia materials with different molar ratios is also different, based on the consideration of various factors Generally, zirconia ceramic products with relatively balanced performance in all aspects are selected, but this also leads to the lack of outstanding performance of zirconia ceramic products in all aspects. When the mobile phone is bumped or dropped, the back panel of the mobile phone is directly broken, which cannot allow consumers to use it with confidence, and the price of the mobile phone back panel is relatively expensive, resulting in a serious waste of resources
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preparation example Construction
[0062] B: The temperature in the glue removal equipment is raised to T1+80 degrees Celsius to T1+120 degrees Celsius, and the required time is 280 to 120 degrees Celsius.
[0070] Step 8: Move the green body after Step 7 into a sintering device for sintering to obtain a ceramic composite.
[0072] Generally, in the ceramic composite body made by the present invention, the X layer accounts for 2% to 95% of the total thickness of the ceramic composite body, and
[0078] In the present embodiment, the isostatic pressing in the step 6 is a cold isostatic pressing or a warm isostatic pressing.
[0079] In this embodiment, the thickness of the ceramic composite body after the eighth step is completed is 0.28 to 0.6 mm.
Embodiment 1
[0091] B: the temperature in the glue removal device is raised to 160 degrees Celsius, and the required time is 280 minutes;
[0095] F: the temperature in the glue removal equipment is raised to 490 degrees Celsius, and the required time is 280 minutes;
Embodiment 2
[0109] B: the temperature in the glue removal equipment is raised to 170 degrees Celsius, and the required time is 320 minutes;
[0110] C: the temperature in the glue removal equipment is raised to 300 degrees Celsius, and the required time is 950 minutes;
[0111] D: the temperature in the glue removal equipment is raised to 440 degrees Celsius, and the required time is 1470 minutes;
[0113] F: the temperature in the glue removal equipment is raised to 500 degrees Celsius, and the required time is 300 minutes;
[0114] G: the temperature in the debinding equipment is raised to 570 degrees Celsius, and the required time is 80 minutes;
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Abstract
The present invention relates to the technical field of ceramic technology, in particular to a method for preparing a ceramic composite with high impact resistance. The green body is formed by stacking in sequence, and then the green body is subjected to encapsulation treatment, isostatic pressing treatment, debinding treatment and sintering treatment to obtain a ceramic composite body. Make full use of the characteristics of Y1 and Y2 layers with high hardness and low toughness and X layer with low hardness and high toughness, and set Y1 and Y2 layers at the upper and lower ends of X layer respectively, so that the surface layer of the ceramic composite formed by processing has a strong Impact resistance, at the same time, the middle layer also has a certain toughness, which is used to absorb the energy of the ceramic composite body when it is impacted, reducing the possibility of brittle fracture of the ceramic composite body. It can effectively prevent the back plate of the mobile phone from breaking when it is impacted.
Description
Preparation method of ceramic composite with high impact resistance technical field The present invention relates to the technical field of ceramic technology, especially refers to the preparation of a kind of high impact-resistant ceramic composite method. Background technique Zirconia ceramics have high strength, high hardness, wear resistance, corrosion resistance, self-lubrication, high temperature resistance, high temperature conductivity, and oxygen The thermal expansion coefficient of zirconia ceramics is close to that of metals, and the volume effect of zirconia phase change is large. It is widely used in various fields, such as Tools, molds, valves, advanced refractories, oxygen sensors, solidfuel cells, high temperature electrodes, high temperature thermal ceramics, inorganic Pigments, high temperature ceramic glazes, etc. In addition to the above-mentioned characteristics, zirconia ceramics are also popular because of their noble texture and luster like ...
Claims
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