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Preparation method of zirconia ceramic capable of efficiently absorbing power frequency electromagnetic field

A technology of zirconia ceramics and electromagnetic field, applied in the field of preparation of zirconia ceramics, can solve problems such as poor effect, affecting the electromagnetic properties and thermal conductivity of ceramic bodies, and achieve enhancement of coloring ability and toughness, expansion of application value and potential, expansion of applied effect

Active Publication Date: 2022-07-22
内蒙古海特华材科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that most existing zirconia ceramics dyed with metal ions not only have poor effect, but also affect the electromagnetic properties and thermal conductivity of the ceramic body, and further provide a preparation of zirconia ceramics that can efficiently absorb power frequency electromagnetic fields method

Method used

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  • Preparation method of zirconia ceramic capable of efficiently absorbing power frequency electromagnetic field
  • Preparation method of zirconia ceramic capable of efficiently absorbing power frequency electromagnetic field
  • Preparation method of zirconia ceramic capable of efficiently absorbing power frequency electromagnetic field

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specific Embodiment approach 1

[0025] Embodiment 1: This embodiment is a preparation method of zirconia ceramics that efficiently absorbs power frequency electromagnetic fields, which is carried out according to the following steps:

[0026] 1. Weigh 95 parts to 99.6 parts of yttria-stabilized zirconia, 1 part to 20 parts of polycarbosilane solution whose mass percentage is 10% to 20%, 0.1 part to 0.5 part of sintering aid, 0.2 part to 2 parts of dispersant and 0.3 to 1.5 parts of cross-linking agent are mixed to obtain a uniformly mixed mixed slurry;

[0027] 2. Under the temperature of 100℃~140℃, drying the mixed slurry uniformly mixed to obtain the dried mixed green body;

[0028] 3. Crushing and sieving the dried mixed green body to obtain a powder with a particle size of 10 μm to 20 μm, and press molding and sintering the powder with a particle size of 10 μm to 20 μm to obtain a zirconia ceramic that efficiently absorbs power frequency electromagnetic fields .

[0029] The polycarbosilane described i...

specific Embodiment approach 2

[0037] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the polycarbosilane solution with a mass percentage of 10% to 20% described in step 1 is prepared according to the following steps: weighing polycarbosilane and dissolving it in in toluene. Others are the same as the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: in the yttria-stabilized zirconia described in step 1, Y 2 O 3 The molar percentage is 1.5% to 8%. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of zirconia ceramic capable of efficiently absorbing a power frequency electromagnetic field, and relates to a preparation method of zirconia ceramic. The invention aims to solve the problems that most existing zirconia ceramics dyed by metal ions are not only poor in effect, but also influence the electromagnetic property and heat-conducting property of a ceramic body. The preparation method comprises the following steps: 1, uniformly mixing mixed slurry; 2, drying; and 3, forming and sintering. The preparation method is used for preparing the zirconia ceramic capable of efficiently absorbing the power frequency electromagnetic field.

Description

technical field [0001] The invention relates to a preparation method of zirconia ceramics. Background technique [0002] With the advancement of technology and the improvement of people's living standards, zirconia ceramic mobile phone backplanes with good mechanical properties, skin-friendly texture and biocompatibility are more and more sought after. In addition, the zirconia mobile phone backplane also has good wave transmission performance in the (2-6GHz) frequency band, which is very suitable for applications in the 5G era. However, it is difficult to impart uniform color to zirconia ceramics by conventional methods. [0003] At present, the common practice is to soak the pre-fired non-dense ceramic body in a solution containing metal ions, and under the action of capillary, the metal ions diffuse into the matrix. Although this method is simple, fast and easy to control, these salt solutions are often toxic, and many studies have proved that long-term exposure to salt...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622
CPCC04B35/481C04B35/622C04B2235/3246C04B2235/483C04B2235/447C04B2235/3281C04B2235/443C04B2235/3218C04B2235/9607C04B2235/96C04B2235/3826
Inventor 王志江
Owner 内蒙古海特华材科技有限公司
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