Method for preparing tritium resistance Er2O3 coating by using chemical solution method

A chemical solution method, er2o3 technology, applied in the field of preparation of tritium blocking coating, can solve the problem of high cost of tritium blocking coating, achieve the effect of low cost, high deposition rate and smooth coating

Inactive Publication Date: 2012-08-01
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to overcome the Er of prior art preparation 2 o 3 The disadvantage of high cost of tritium-blocking coating provides a low-cost chemical solution method to prepare Er 2 o 3 Tritium Barrier Coating Method

Method used

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  • Method for preparing tritium resistance Er2O3 coating by using chemical solution method
  • Method for preparing tritium resistance Er2O3 coating by using chemical solution method
  • Method for preparing tritium resistance Er2O3 coating by using chemical solution method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Measure 20 mL and 1 mL of ethanol and terpineol respectively, and then mix the two;

[0024] (2) Stir the solution prepared in the above step (1) by a magnetic stirrer for 1 h at room temperature;

[0025] (3) add 0.0105mol erbium nitrate in the solution that above-mentioned step (2) makes, make the solution that metal Er ion concentration is 0.5mol / L;

[0026] (4) Stir the solution prepared in the above step (3) at 80° C. for 4 h with a magnetic stirrer to obtain a transparent light red erbium nitrate gel;

[0027] (5) the erbium nitrate gel prepared by step (4) is spin-coated on a 316L stainless steel substrate at a speed of 5000 rpm;

[0028] (6) The substrate coated with erbium nitrate gel in step (5) is placed in a high-temperature tubular quartz furnace, and 500 sccm argon gas is passed into the reaction chamber, and the temperature is raised to 600 ° C from room temperature at a heating rate of 5 ° C / h , and keep it warm for 3h, then the sample is cooled ...

Embodiment 2

[0030] (1) Measure 20mL and 1.5mL of ethanol and terpineol respectively, and then mix the two;

[0031] (2) Stir the solution prepared in the above step (1) by a magnetic stirrer at room temperature for 2 h;

[0032] (3) add 0.0172mol erbium nitrate in the solution that above-mentioned step (2) makes, make the solution that metal Er ion concentration is 0.8mol / L;

[0033] (4) Stir the solution prepared in the above step (3) at 85° C. for 6 h with a magnetic stirrer to obtain a transparent light red erbium nitrate gel;

[0034] (5) the erbium nitrate gel prepared by step (4) is spin-coated on a 316L stainless steel substrate at a speed of 6000 rpm;

[0035] (6) The substrate coated with erbium nitrate gel through step (5) is placed in a high-temperature tubular quartz furnace, and 500 sccm argon is passed into the reaction chamber, and the temperature is raised to 700 from room temperature with a heating rate of 5°C / h. ℃, and kept for 4h, then the sample was cooled to room te...

Embodiment 3

[0038] (1) Measure 20 mL and 2 mL of ethanol and terpineol respectively, and then mix the two;

[0039] (2) Stir the solution prepared in the above step (1) by a magnetic stirrer for 3 hours at room temperature;

[0040] (3) add 0.022mol erbium nitrate in the solution that above-mentioned step (2) makes, make the solution that metal Er ion concentration is 1.0mol / L;

[0041] (4) Stir the solution prepared in the above step (3) at 90°C for 8h with a magnetic stirrer to obtain a transparent light red erbium nitrate gel;

[0042] (5) the erbium nitrate gel prepared by step (4) is spin-coated on a 316L stainless steel substrate at a speed of 7000 rpm;

[0043] (6) Place the substrate coated with erbium nitrate gel through step (5) in a high-temperature tubular quartz furnace, feed 500 sccm argon into the reaction chamber, and heat up to 800 from room temperature with a heating rate of 5°C / h. ℃, and kept for 5h, then the sample was cooled to room temperature with the furnace, and E...

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Abstract

The invention relates to a method for preparing a tritium resistance Er2O3 coating by using a chemical solution method. The method comprises: mixing ethanol and terpineol according to a volume ratio of 20:1-10:1; stirring the resulting mixed solution with a magnetic stirrer at a room temperature; adding erbium nitrate to the mixed solution in a dropwise manner after the mixed solution is uniformly stirred; stirring for 4-8 hours with the magnetic stirrer at a temperature of 80-90 DEG C to obtain a transparent light red erbium nitrate gel; coating the erbium nitrate gel on a substrate; placing the substrate coated with the erbium nitrate gel in a high temperature tube quartz furnace, and carrying out high temperature sintering for 3-5 hours under inert atmosphere at a temperature of 600-800 DEG C to obtain the tritium resistance Er2O3 coating. The tritium resistance Er2O3 coating of the present invention is flat and compact, and has good adhesion with the substrate.

Description

technical field [0001] The invention relates to a method for preparing a tritium-resistant coating, in particular to the preparation of Er on a stainless steel substrate. 2 o 3 Coating method. Background technique [0002] Fusion energy is currently recognized as one of the important ways to finally solve human energy and environmental problems. After more than half a century of hard work by many scientists, magnetic confinement fusion research has made significant progress. But the permeation of hydrogen and its isotopes, one of the most critical problems in fusion reactors, is still not fully resolved. The permeation behavior of tritium in structural materials mainly includes gas-driven tritium permeation and plasma-driven tritium permeation. Gas-driven tritium permeation is caused by the concentration difference of tritium on both sides of the structural material, and its process mainly includes surface adsorption, dissociation, dissolution, diffusion, recombination, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00
Inventor 丁发柱古宏伟张腾屈飞戴少涛邱清泉蔡渊贺昱旻
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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