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a kind of ceo 2 Doped cu/mn composite film/microcrystalline interface layer and metal matrix composite connector and preparation method thereof

A metal-based composite and interface layer technology, which is applied in coatings, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as poor commercialization prospects and poor electrical conductivity, and achieve shortened reaction stability time and high electrical conductivity. , enhance the effect of antioxidant performance

Active Publication Date: 2022-03-04
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cr-containing spinel film MgCr 2 o 4 , Mn 1.2 Cr 1.8 o 4 、NiCr 2 o 4 、CuCr 2 o 4 、ZnCr 2 o 4 、CoCr 2 o 4 and other poor electrical conductivity (except CoCr 2 o 4 Outside the film layer, other conductivity is 0.01~0.4S·cm -1 around), the thermal expansion coefficient is 7×10 -6 K -1 (The TEC of the stainless steel plate is at 11×10 -6 K -1 around), and there are serious problems such as Cr volatilization, and the commercialization prospect is not good. Therefore, the Cr-free film material is the research focus

Method used

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  • a kind of ceo <sub>2</sub> Doped cu/mn composite film/microcrystalline interface layer and metal matrix composite connector and preparation method thereof
  • a kind of ceo <sub>2</sub> Doped cu/mn composite film/microcrystalline interface layer and metal matrix composite connector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step (1) The 430SS base material is polished with 400#~2000# water-grinding paper, then cleaned with distilled water and acetone, air-dried or blow-dried, and sealed for storage.

[0022] Step (2) Deposit a layer of smooth 430SS fine grain transition layer on the surface of the substrate through high-temperature micro-arc alloying technology with an electrode rod with a diameter of 2mm, adjust the voltage to 180V, and prepare 430SS fine grain transition layer on the surface of the substrate. Grain layer, and then the prepared refined grain layer is repaired and flattened.

[0023] Step (3) First configure 400ml of electrolyte solution in a beaker for impact Ni plating, first pour 200ml of distilled water into the beaker, and then add 1M NiCl 2 , stirred until no precipitate was added, and then 128 mL of HCl was added and distilled water was gradually added to 400 mL. Configure 400ml electrolyte solution to electrodeposit Cu, first pour 300ml distilled water into the be...

Embodiment 2

[0027] Step (1) The 430SS base material is polished with 400#~2000# water-grinding paper, then cleaned with distilled water and acetone, air-dried or blow-dried, and sealed for storage.

[0028] Step (2) Deposit a layer of flat 430SS fine grain transition layer on the surface of the substrate by high-temperature micro-arc alloying technology with an electrode rod with a diameter of 2mm, adjust the voltage to 190V, and prepare 430SS fine grain transition layer on the surface of the substrate. Grain layer, and the prepared refined grain layer is repaired and flattened.

[0029] Step (3) First configure 400ml of electrolyte solution in a beaker for impact Ni plating, first pour 200ml of distilled water into the beaker, and then add 1M NiCl 2 , stirred until no precipitate was added, and then 128 mL of HCl was added and distilled water was gradually added to 400 mL. Prepare 400ml of electrolytic deposition Cu electrolyte solution, first pour 300ml of distilled water into the beak...

Embodiment 3

[0033] Step (1) The 430SS base material is polished with 400#~2000# water-grinding paper, then cleaned with distilled water and acetone, air-dried or blow-dried, and sealed for storage.

[0034] Step (2) Deposit a layer of smooth 430SS fine grain transition layer on the surface of the substrate through high-temperature micro-arc alloying technology with an electrode rod with a diameter of 2.5mm, adjust the voltage to 200V, and prepare 430SS fine grain transition layer on the surface of the substrate. refine the grain layer, and repair and smooth the prepared grain refinement layer.

[0035] Step (3) First configure 400ml of electrolyte solution in a beaker for impact Ni plating, first pour 200ml of distilled water into the beaker, and then add 1M NiCl 2 , stirred until no precipitate was added, and then 128 mL of HCl was added and distilled water was gradually added to 400 mL. Prepare 400ml of electrolyte solution for electrodeposition Cu, first pour 300ml of distilled water ...

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Abstract

The invention discloses a CeO2-doped Cu / Mn composite film / microcrystalline interface layer and a metal-based composite connector and a preparation method thereof, and relates to the field of metal connector composite materials for solid oxide fuel cells. Firstly, it is deposited by high-energy micro-arc alloy technology The microcrystalline transition layer of the matrix material; and then use the electrochemical deposition method to composite metal-plated Cu combined with nano-scale CeO 2 Composite film of particles; then electrochemically deposited metal Mn as the outer layer of the whole composite. Among them, a certain amount of nano-scale CeO added during electrodeposition of Cu coating 2 To refine the coating grains, improve the high-temperature diffusion of elements and the high-temperature oxidation resistance of the composite layer. The beneficial effects are: the prepared microcrystalline interface layer and the metal-based composite connector have strong electrical conductivity and excellent high-temperature oxidation resistance, and can effectively prevent the out-diffusion of Cr elements in the metal substrate to improve the performance of solid oxide fuel cells. The life and working efficiency of metal connectors.

Description

technical field [0001] The present invention relates to a solid oxide fuel cell metal connector composite material, in particular to a method for preparing a CeO2-doped Cu / Mn composite film / microcrystalline interface layer and a metal-based composite connector, which is applied to a solid oxide fuel batteries or other high temperature batteries. Background technique [0002] Solid Oxide Fuel Cell (SOFC) has the advantages of wide fuel adaptability, high energy conversion efficiency, all solid state, modular assembly, zero pollution, etc., and can directly use hydrogen, carbon monoxide, natural gas, liquefied petroleum gas, and coal gas and biomass gas and other hydrocarbon fuels. Solid oxide fuel cells have a wide range of applications, covering almost all traditional power markets, including residential, commercial, industrial, and public utility power plants, and even portable power sources, mobile power sources, and remote areas. High-quality power supply, etc., can als...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25D15/00C25D5/36C25D5/50H01M8/0297
CPCC25D3/12C25D15/00C25D5/36C25D5/505H01M8/0297Y02E60/50Y02P70/50
Inventor 郭平义丁江涛邵勇黄铭瑞毛胜勇王宇鑫何震郭云霞王冬朋欧文祥
Owner JIANGSU UNIV OF SCI & TECH
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