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Preparation method of unshielded microcrystalline ceramic backboard based on 5G communication signals

A technology of microcrystalline ceramics and communication signals, which is used in telephone communication, branch equipment, electrical components, etc., can solve the problem of inability to realize the net size forming of backplane materials, and achieve excellent mechanical impact resistance, low preparation cost, and preparation technology. simple effect

Active Publication Date: 2021-02-02
XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires multiple presses and cannot achieve net-size molding of the backsheet material

Method used

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  • Preparation method of unshielded microcrystalline ceramic backboard based on 5G communication signals
  • Preparation method of unshielded microcrystalline ceramic backboard based on 5G communication signals

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A method for preparing a microcrystalline ceramic backplane without shielding based on 5G communication signals, the specific steps are as follows:

[0031] (1) Weigh high-purity Y separately 2 o 3 Powder, high purity Gd 2 o 3 Powder and high purity ZrO 2 powder, and added to the nylon ball mill jar, where Y 2 o 3 Adding amount is Y 2 o 3 with Gd 2 o 3 0.9wt.% of the mixed powder mass, ZrO 2 Adding amount is Y 2 o 3 with Gd 2 o 3 1wt.% of the mass of the mixed powder;

[0032] (2) Add dispersant NP-10 and solvent to the mixed powder obtained in step (1) to carry out drum milling. The material of the ball is zirconia, the diameter of the ball is 30mm, the speed of ball milling is 200r / min, and the time of ball milling is 20h , the solid content of adjustment slurry is 52wt.%; Described dispersant add-on is 1wt.% of mixed raw material powder gross mass, and solvent is the mixed solution of methyl ethyl ketone and dehydrated alcohol (the quality of methyl et...

Embodiment 2

[0044] A method for preparing a microcrystalline ceramic backplane without shielding based on 5G communication signals, the specific steps are as follows:

[0045] (1) Weigh high-purity Y separately 2 o 3 Powder, high purity Gd 2 o 3 Powder and high purity ZrO 2 powder, and added to the nylon ball mill jar, where Y 2 o 3 Adding amount is Y 2 o 3 with Gd 2 o 3 0.1wt% of the total mass of mixed powder, ZrO 2 Adding amount is Y 2 o 3 with Gd 2 o 3 2wt.% of the total mass of mixed powder;

[0046] (2) add dispersant herring oil and solvent to the mixed powder obtained in step (1) and carry out drum milling, the ball material is zirconia, the ball diameter is 50mm, the ball milling speed is 80r / min, and the ball milling time is 36h, The solid content of adjustment slurry is 45wt.%; The addition of described dispersant is 0.4wt.% of the total mass of mixed raw material powder, and solvent is the mixed solution of methyl ethyl ketone and dehydrated alcohol (the quality...

Embodiment 3

[0054] A method for preparing a microcrystalline ceramic backplane without shielding based on 5G communication signals, the specific steps are as follows:

[0055] (1) Weigh high-purity Y separately 2 o 3 Powder, high purity Gd 2 o 3 Powder and high purity ZrO 2 powder, and added to the nylon ball mill jar, where Y 2 o 3 Adding amount is Y 2 o 3 with Gd 2 o 3 0.5wt.% of the total mass of mixed powder, ZrO 2 Adding amount is Y 2 o 3 with Gd 2 o 3 0.1wt.% of the total mass of mixed powder;

[0056] (2) adding dispersant castor oil and solvent to the mixed powder obtained in step (1) and carrying out drum milling, the ball material is zirconia, the ball diameter is 60mm, the ball milling speed is 300r / min, and the ball milling time is 15h, The solid content of adjustment slurry is 55wt.%; The 1.5wt.% of described dispersant addition is the total mass of mixed raw material powder, and solvent is the mixed solution of methyl ethyl ketone and dehydrated alcohol (the q...

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Abstract

The invention discloses a preparation method of an unshielded microcrystalline ceramic backboard based on 5G communication signals, and the method comprises the following steps of: respectively weighing high-purity Y2O3 powder, high-purity Gd2O3 powder and high-purity ZrO2 powder as raw material powder, adding a dispersing agent, a plasticizer and a binder, and carrying out ball-milling mixing; performing filtering, then directly carrying out tape casting, carrying out self-defined cutting and stacking on the obtained biscuit, carrying out temperature isostatic pressing and shaping on the obtained green body, and performing degreasing; and carrying out vacuum sintering on the degreased green body, performing natural cooling to room temperature, then adding the green body into liquid nitrogen, performing preserving for a period of time, taking out the ceramic from the liquid nitrogen, directly putting the ceramic into a vacuum sintering furnace, performing sintering again, conducting natural cooling to room temperature, and then performing annealing to obtain the microcrystalline ceramic backboard. The microcrystalline ceramic backboard prepared by the method is excellent in performance, does not shield 5G communication signals, has good jade texture and gloss after being polished, and is low in preparation cost and simple in preparation process.

Description

technical field [0001] The invention relates to the technical field of ceramic backplane preparation, in particular to a method for preparing a microcrystalline ceramic backplane based on 5G communication signals without shielding. Background technique [0002] With the great breakthroughs in science and technology, the Internet of Things industry has developed rapidly; the mobile communication network has also developed from 2G, 3G to 4G, changing people's lives step by step. Now that 5G signal base stations are becoming popular, it marks the arrival of the era of the Internet of Everything, which means that smart products based on 5G communication networks have become the mainstream of the market. At present, major electronic product manufacturers have launched their own electronic products based on 5G communication networks. [0003] However, the 5G communication network based on the millimeter wave (MMW) data transmission method has key technical problems such as unstab...

Claims

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Application Information

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IPC IPC(8): C04B35/50C04B35/622C04B35/64H04M1/02
CPCC04B35/50C04B35/622C04B35/64H04M1/026C04B2235/3225C04B2235/3244C04B2235/6581C04B2235/661C04B2235/6562C04B2235/6567C04B2235/656
Inventor 张乐邵岑康健邱凡赵超陈浩
Owner XINYI XIYI ADVANCED MATERIALS RES INST OF IND TECH CO LTD
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