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Method for electrodepositing iron-nickel alloy plating on surface of carbon-based material

An iron-nickel alloy and carbon-based material technology, applied in the field of surface treatment, can solve the problems of inability to realize the in-depth filling of the metal layer, limit the application and promotion, etc., and achieve the effects of large micro-interface bonding force, avoiding interface detachment, and simple equipment.

Inactive Publication Date: 2018-01-05
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, spraying method, PVD, CVD and other methods need special equipment and harsh conditions, and the obtained metal layer has stress, pores and cracks, etc., thus limiting their application and promotion; metal powder or slurry is used for carbon-based materials. The method of surface coating and then sintering at high temperature to achieve surface metallization has also been reported
However, the existing conventional methods for metallizing the surface of carbon-based materials cannot achieve deep filling of the metal layer and form a tight interface bond for the inherent micron-scale pores of carbon-based materials.

Method used

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  • Method for electrodepositing iron-nickel alloy plating on surface of carbon-based material
  • Method for electrodepositing iron-nickel alloy plating on surface of carbon-based material
  • Method for electrodepositing iron-nickel alloy plating on surface of carbon-based material

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Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: a kind of method for electrodepositing iron-nickel alloy coating on the surface of carbon / carbon composite material, concrete steps are:

[0023] (1) The carbon / carbon composite material is subjected to heat treatment after being sanded and cleaned, and ultrasonically cleaned in deionized water until no black particles are precipitated to obtain a pretreated carbon-based material. The heat treatment atmosphere is air atmosphere, and the heat treatment temperature is 200°C. The heat treatment time is 20min;

[0024] (2) Prepare the iron-nickel alloy electrodeposition solution, wherein the composition of the iron-nickel alloy electrodeposition solution is NiSO 4 0.5mol / L, NiCl 2 0.2 mol / L, FeSO 4 0.1 mol / L, H 3 BO 3 0.25 mol / L, NaCl 0.15 mol / L, ascorbic acid 1 g / L, o-sulfonyl benzimide 2g / L, additive A (additive A is 1,4-butynediol) 0.15g / L, the remaining The amount is deionized water;

[0025] (3) ultrasonically treat the iron-nickel alloy electro...

Embodiment 2

[0027] Embodiment 2: a kind of method on carbon / silicon carbide composite material surface electrodeposition iron-nickel alloy coating, concrete steps are:

[0028] (1) The carbon / silicon carbide composite material is sanded and cleaned, then heat treated, and ultrasonically cleaned in deionized water until no black particles are precipitated to obtain a pretreated carbon-based material. The heat treatment atmosphere is air atmosphere, and the heat treatment temperature is 350°C , the heat treatment time is 20min;

[0029] (2) Prepare the iron-nickel alloy electrodeposition solution, wherein the composition of the iron-nickel alloy electrodeposition solution is NiSO 4 0.3mol / L, NiCl 2 0.1 mol / L, FeSO 4 0.08mol / L, H 3 BO 3 0.5 mol / L, NaCl 0.25 mol / L, ascorbic acid 2 g / L, o-sulfonyl benzimide 2.5g / L, additive A (additive A is o-closyl cinnamic acid) 0.08g / L, the balance is Deionized water;

[0030] (3) ultrasonically treat the iron-nickel alloy electrodeposition soluti...

Embodiment 3

[0032] Embodiment 3: a kind of method at graphite surface electrodeposition iron-nickel alloy coating, concrete steps are:

[0033] (1) After the bulk graphite is sanded and cleaned, heat treatment is carried out, and the pretreated carbon-based material is obtained by ultrasonic cleaning in deionized water until no black particles are precipitated. The heat treatment atmosphere is air atmosphere, and the heat treatment temperature is 150°C. The time is 10 minutes;

[0034] (2) Prepare the iron-nickel alloy electrodeposition solution, wherein the composition of the iron-nickel alloy electrodeposition solution is NiSO 4 0.2mol / L, NiCl 2 0.15 mol / L, FeSO 4 0.03mol / L, H 3 BO 30.2 mol / L, NaCl 0.1 mol / L, ascorbic acid 0.5g / L, o-sulfonyl benzimide 1g / L, additive A (additive A is phenylpropiolic acid) 0.05g / L, the balance is to Ionized water;

[0035] (3) Ultrasonically treat the iron-nickel alloy electrodeposition solution in step (2) for 8 minutes, use the pretreated bulk ...

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Abstract

The invention relates to a method for electrodepositing iron-nickel alloy plating on the surface of a carbon-based material and belongs to the technical field of surface treatment. The carbon-based material is subjected to heat treatment and ultrasonically cleaned, and thus a pretreated carbon-based material is obtained; an iron-nickel alloy electrodepositing solution is prepared; with the pretreated carbon-based material as a cathode, an iron-nickel alloy plate as an anode and the iron-nickel alloy electrodepositing solution serves as an electroplating solution, electrodepositing is conductedat 30-50 DEG C for 5-60 min through a direct-current power source; and the cathode is taken out, cleaned and dried, and thus the iron-nickel alloy plating is obtained. The iron-nickel alloy plating can be electroplated on the surface of the carbon-based material, the thermal expansion coefficient of the plating is close to that of the carbon-based material, micron-scale interface bonding is achieved between the plating and the carbon-based material, and tight interface bonding can be still kept after a heat cycle from the indoor temperature to the temperature of 800 DEG C.

Description

technical field [0001] The invention relates to a method for electrodepositing an iron-nickel alloy coating on the surface of a carbon-based material, and belongs to the technical field of surface treatment. Background technique [0002] Conventional methods for surface metallization of carbon-based materials include spraying, PVD, and CVD. Among them, spraying method, PVD, CVD and other methods need special equipment and harsh conditions, and the obtained metal layer has stress, pores and cracks, etc., thus limiting their application and promotion; metal powder or slurry is used for carbon-based materials. The method of surface coating and sintering at high temperature to achieve surface metallization has also been reported. However, using the existing conventional methods to metallize the surface of carbon-based materials, it is impossible to deeply fill the metal layer and form a tight interfacial bond for the inherent micron-scale pores of the carbon-based materials the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56C25D5/54
Inventor 刘意春马俊宾赵琪李才巨鲍瑞陶静梅谈松林游昕易健宏
Owner KUNMING UNIV OF SCI & TECH
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