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Preparation of (cu,fe) by a magnetron sputtering method 3 o 4 Method of spinel coating and its application

A technology of spinel coating and magnetron sputtering, which is applied in the direction of coating, sputtering coating, metal material coating process, etc., can solve the problems of difficult control of composition and thickness, slow film preparation rate and substrate bonding force. Poor and other problems, to achieve the effect of improving oxidation resistance and electrical conductivity, compact structure, and improving adhesion

Active Publication Date: 2019-12-06
NORTHEASTERN UNIV LIAONING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a kind of magnetron sputtering method preparation (Cu, Fe) 3 o 4 Methods and applications of spinel coatings, addressing (Cu,Fe) 3 o 4 In the preparation of spinel coating, the preparation rate of the film layer is slow, there are many pores, the bonding force with the substrate is poor, and the composition and thickness are not easy to control, etc.

Method used

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  • Preparation of (cu,fe) by a magnetron sputtering method <sub>3</sub> o <sub>4</sub> Method of spinel coating and its application
  • Preparation of (cu,fe) by a magnetron sputtering method <sub>3</sub> o <sub>4</sub> Method of spinel coating and its application

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1: This embodiment is based on SUS 430 stainless steel (Cr: 16mass%)

[0027] (1) Pretreatment: Polish the surface of the SUS 430 stainless steel substrate with 240#, 400#, and 600# SiC water-grinding paper in sequence, and perform grinding and chamfering treatment; sandblasting is performed after the substrate is polished, and the pressure range of compressed air during sandblasting 0.5MPa, the sand used is silica; after the substrate is sandblasted, it is ultrasonically cleaned with acetone for 15 minutes; the cleaned sample is pre-oxidized in air at 800°C for 100 hours, and a Cr with a thickness of about 2 μm is formed on the surface of the stainless steel. 2 o 3 and (Mn,Cr) 3 o 4 oxide layer;

[0028] (2) Sputtering deposition to obtain alloy coating: take Cu-Fe alloy target (33% Cu content, 67% Fe content) as cathode, substrate as anode, sputtering current 3.0A, sputtering pressure 0.15Pa, sputtering The sputtering temperature is 200°C, the sputterin...

Embodiment 2

[0032] Example 2 This example uses crofer22APU stainless steel as the substrate (Cr: 22mass%) (1) Pretreatment: use 240#, 400#, 600# SiC water abrasive paper to polish the surface of the crofer22APU stainless steel substrate in sequence, and perform grinding and chamfering treatment ;Sandblasting is carried out after the substrate is polished, the pressure range of compressed air is 0.3MPa during sandblasting, and the sand particles used are silica; after the substrate is sandblasted, it is ultrasonically cleaned with acetone for 10min; the cleaned sample is placed in air at 650°C Pre-oxidize for 150 hours to form Cr with a thickness of about 2.5 μm on the surface of stainless steel 2 o 3 and (Mn,Cr) 3 o 4 oxide layer;

[0033] (2) Sputtering deposition to obtain an alloy coating: the Cu-Fe alloy target (30% Cu content, 70% Fe content) is used as the cathode, the substrate is used as the anode, the sputtering current is 3.0A, and the sputtering pressure is 0.10Pa. The sput...

Embodiment 3

[0035] Embodiment 3 This embodiment takes AISI 430 stainless steel as the substrate (Cr: 18mass%)

[0036] (1) Pretreatment: use 240#, 400#, 600# SiC water abrasive paper to polish the surface of AISI 430 stainless steel substrate in sequence, and perform grinding and chamfering treatment; after the substrate is polished, sandblasting is performed, and the pressure range of compressed air during sandblasting 0.4MPa, the sand used is silica; after the substrate is sandblasted, it is ultrasonically cleaned with acetone for 13 minutes; the cleaned sample is pre-oxidized in air at 750°C for 200 hours, and a Cr with a thickness of about 3 μm is formed on the surface of the stainless steel. 2 o 3 and (Mn,Cr) 3 o 4 oxide layer;

[0037] (2) Sputtering deposition to obtain alloy coating: take Cu-Fe alloy target (40% Cu content, 60% Fe content) as cathode, substrate as anode, sputtering current 3.0A, sputtering pressure 0.13Pa, sputtering The sputtering temperature was 200°C, the s...

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Abstract

The present invention relates to (Cu, Fe) 3 O 4 The field of preparation of spinel coatings, specifically involving the preparation of (Cu, Fe) by magnetron sputtering 3 O 4 The method and application of spinel coating, the specific preparation steps are as follows: (1) pretreatment and pre-oxidation treatment; (2) sputtering deposition to obtain alloy coating; (3) thermal conversion to obtain spinel coating . This method has the characteristics of simple operation process and fast deposition rate. The prepared spinel coating is dense and has good bonding force with the substrate. It has excellent long-term high temperature oxidation resistance and conductivity, and can effectively inhibit the external diffusion of Cr from the substrate. .

Description

technical field [0001] The present invention relates to (Cu,Fe) 3 o 4 The field of preparation of spinel coating, specifically relates to a kind of magnetron sputtering method preparation (Cu, Fe) 3 o 4 Methods of spinel coatings and their applications. Background technique [0002] At present, the metal connectors used in solid oxide fuel cells (SOFC) at medium temperature (600-800°C) mainly include Cr-based alloys, Ni-based alloys and Cr-containing ferritic stainless steel. Because ferritic stainless steel has the advantages of high temperature oxidation resistance, low price, high electrical conductivity, excellent thermal conductivity, and thermal expansion coefficient matching with other components, ferritic stainless steel has become the most potential connector material. However, ferritic stainless steel is severely oxidized and corroded in the working environment of SOFC, especially in the high-temperature oxidizing environment of the cathode, and there is a prob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/16C23C14/35C23C14/58C23C14/02H01M8/10
CPCC23C14/02C23C14/165C23C14/35C23C14/5853H01M8/10H01M2008/1293Y02E60/50
Inventor 耿树江潘玥
Owner NORTHEASTERN UNIV LIAONING
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