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Surface alloying method of powder-like ceramic material

A technology for surface alloying and ceramic materials, applied in the field of surface alloying of powder ceramic materials, can solve the problems of difficulty in process parameters, difficulty in distance speed between composite target and powder, etc., achieve advanced and reasonable preparation technology, improve interface plasticity, guarantee The effect of uniformity

Inactive Publication Date: 2014-07-02
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, during the process of powder plating, it is also difficult to grasp the process parameters. Compared with bulk ceramics, the powder is constantly moving during the process of plating, and the distance between the composite target and the powder And it is difficult to control the speed of powder in the process of infiltration. How to ensure the quality of infiltration and improve the efficiency of infiltration at the same time. The above problems are all infiltration on the surface of ceramic powder by arc glow infiltration method. technical problems

Method used

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  • Surface alloying method of powder-like ceramic material
  • Surface alloying method of powder-like ceramic material
  • Surface alloying method of powder-like ceramic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 Shown is an arc-added glow ion plating device, which is composed of a closed furnace wall with a jacket. There is circulating water in the jacket of the furnace wall, and the bottom of the furnace wall is respectively equipped with a vacuum port and an argon gas port. .

[0033] The cathode seat is installed at the bottom of the furnace wall, and is inclined to rotate along the axis of the cathode seat. Fixed on the cathode holder is a Figure 4 , Figure 5 The shown cylinder is made of 304 austenitic stainless steel, and the specification of the cylinder is Φ300mm×30mm×1mm, such as Image 6 As shown, six stainless steel strips parallel to each other are obliquely arranged on the inner wall of the barrel. Ceramic powder is placed in the barrel, B in the embodiment 4 C ceramic powder.

[0034] The anode target seat is fixed on the furnace wall on the opposite side of the cathode seat, and is arranged coaxially with the cathode seat. A composite target per...

Embodiment 2

[0047] The B described in material embodiment 1 4 C ceramic powder is replaced by ZrO 2 Ceramic powder, other conditions remain the same, after the preparation is completed, the product is observed under a microscope, the microstructure of the ceramic interface after ion glow plating, the ion has been uniformly plated on the ZrO during the process of plating 2 Surface of ceramic material.

Embodiment 3

[0049] The B described in material embodiment 1 4 Replacement of C ceramic powder with Si 3 N 4 Ceramic powder, other conditions remain the same, after the preparation is completed, the product is observed under a microscope, the microstructure of the ceramic interface after ion glow plating, the ion has been uniformly plated on Si during the process of plating 3 N 4 Surface of ceramic material.

[0050] The invention relates to a method for surface alloying of powdery ceramic materials, which is aimed at the preparation of powdery ceramic composite materials, and adopts a composite target with an inlaid structure machined from aluminum rods, copper rods and titanium rods as a permeation source, ceramic powder powder As the raw material, the method of arc-glow composite ion plating is used to make aluminum-copper-titanium alloy ceramic powder materials in a vacuum state, and the container is rotated while plating to ensure the uniformity of plating. This preparation method...

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Abstract

The invention discloses a surface alloying method for powder-like ceramic material. The surface alloying method of the powder-like ceramic material is performed in an arched glow ion diffusion coating device, the arched glow ion diffusion coating device is provided with a rotatable cathode base which is slantly arranged on the bottom, a material barrel for containing the ceramic powder is fixed on the cathode base, an anode target base is arranged at the opposite side of the cathode base and coaxially arranged with the cathode base, a composite target diffusion coating source is fixed on the anode target base, an electric arc is fixed on the periphery of the composite target diffusion coating source, the titanium-copper-aluminum / ceramic powder composite material is prepared through reasonable arched glow ion diffusion coating process. The surface alloying material has the beneficial effect that the preparation process is advanced and reasonable, continuous and compact; the prepared ceramic powder composite material is uniform in ion diffusion costing, excellent in performance, and can be used by ceramic material in the high-technical field.

Description

technical field [0001] The invention relates to a method for surface alloying of powdered ceramic materials, belonging to the technical field of surface metallization of ceramic materials. Background technique [0002] Due to the advantages of high temperature resistance, corrosion resistance, wear resistance and good insulation resistance, ceramic materials occupy a very special position in the field of high temperature structures; based on some of their unique physical properties, they are widely used as sensors. functional element. [0003] Powdered ceramics can be made into ceramic composites by powder metallurgy. This method has the advantages of low temperature, relatively uniform mixing of particles and matrix, and less serious segregation or agglomeration. At the same time, powder metallurgy can also adjust the addition ratio of reinforcements arbitrarily according to the performance requirements of composite materials. The rapid solidification of gas atomization m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/88
Inventor 王文先陈洪胜张红霞张鹏李宇力
Owner TAIYUAN UNIV OF TECH
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