Ceramic and preparation method thereof as well as ceramic composite material and preparation method thereof

A technology for ceramics and ceramic substrates, applied in the field of ceramic metallization, can solve the problems of difficult laser activation, poor bonding force of chemical plating, etc., and achieve the effect of improving light absorption and firm bonding

Active Publication Date: 2013-04-03
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems that existing ceramic materials are difficult to be activated by laser and have poor bonding force with chemical plating, the present invent

Method used

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Examples

Experimental program
Comparison scheme
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preparation example Construction

[0013] The invention provides a method for preparing ceramics, which comprises mixing a ceramic matrix with elemental carbon to form a mixture, forming, debinding, and sintering; based on the total weight of the mixture, the content of the elemental carbon is 0.001-1wt% .

[0014] The ceramic material provided by the present invention contains carbon elements, which can improve the light absorption of general ceramic materials to low-power laser energy beams, so that they can be directly activated by patterned etching with low-power lasers, and then put into the chemical plating solution. plated, and the plated metal is firmly combined with the ceramic material.

[0015] Preferably, the content of the elemental carbon is 0.4-0.6wt%. Carbon content in this range has a better coloring effect, and the electrical properties of ceramics after sintering will not be affected by too much carbon content.

[0016] Preferably, based on the total weight of the mixture, the content of th...

Embodiment 1

[0031] (1) Preparation of ceramics

[0032] Ceramic powder: high-purity Al with particle size less than 3 μm 2 o 3 Powder 9.45 grams, sintering aid 0.5 grams (MgO\SiO 2 \ \CaO-based glass powder); elemental carbon: 0.05 g of graphite is fully mixed evenly, then 1 g of PVA solution with a concentration of 6wt% is added, ground and granulated; then the granulated powder is pressed into a blank with a diameter of 15 mm by a manual molding machine body, the pressure is 10MPa, the green body will be put into a closed box furnace, debinding in flowing nitrogen, the heating rate is 5℃ / min, the debinding temperature is 600℃ (keep 2h), after cooling, put The sintering was carried out in an atmosphere box furnace (under a nitrogen atmosphere), the heating rate was 5°C / min, and the sintering temperature was 1600°C (holding time 2h). Ceramics are obtained by cooling in the furnace.

[0033] (2) Preparation of ceramic composite materials

[0034] The ceramics are placed on a YAG laser...

Embodiment 2

[0036] Sample A2 was prepared according to the method of Example 1. The difference is: the ceramic powder is ZrO 2 9.4 grams, 0.5 grams of sintering aid (Y 2 o 3 ); elemental carbon: carbon black powder 0.1 g.

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Abstract

The invention discloses a preparation method of a ceramic. The preparation method of the ceramic comprises the following steps: mixing a ceramic substrate, a sintering aid and a monomer carbon to obtain a mixture; shaping, deguming and sintering, wherein based on the total weight of the mixture, the monomer carbon accounts for 0.001-1wt%. Furthermore, the invention provides the ceramic prepared by the method, a method for surface selective metalization of the ceramic and a prepared ceramic composite material. The carbon element in the ceramic material provided by the invention can improve the light absorption of the general white ceramic material on the energy beam of a low-power laser device, so that the ceramic material can be directly graphically etched and activated by the low-power laser, then the material is coated in a chemical plating solution, and the coating layer metal is firmly combined with the ceramic material; and the method is simple and easy to control.

Description

technical field [0001] The invention belongs to the field of ceramic metallization, and relates to a ceramic and a preparation method thereof, a ceramic composite material and a preparation method thereof. Background technique [0002] When ceramics are used in circuits, they must first be metallized, that is, a layer of metal that is firmly bonded to the ceramics and not easily melted is applied on the surface of the ceramics, and then etched to form a graphic circuit. The ceramic surface can form a three-dimensional circuit carrier integrating electromechanical functions. At the same time, ceramic devices with three-dimensional circuits on the surface have high thermal conductivity and mechanical strength, long service life, strong aging resistance, etc., so they will be widely used in the electronic field. [0003] For example, CN1566021A discloses a method for manufacturing black zirconia ceramics, which mainly includes zirconia ceramic powder, and is characterized in t...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/48C04B35/583C04B35/505C04B35/01C04B35/50C04B35/44C04B35/16C04B35/622C04B41/88
Inventor 徐强林信平任永鹏张保祥王书敏
Owner BYD CO LTD
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