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Metal early corrosion probe and preparation method thereof

A probe and metal technology, applied in the field of material science, can solve the problems of short life, limited penetrating ability of organic coating, easy aging, etc., and achieve the effect of good density, easy control of coating thickness, and not easy aging

Active Publication Date: 2021-09-24
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

) At present, the types of fluorescent probes are relatively rich, but there are generally the following three shortcomings: fluorescent corrosion probes are all organic matter, easy to age, and have a short life; fluorescence is all visible light, and the penetration ability to organic coatings is limited; Real-time excitation is required at all times, and there is excitation light noise and has certain limitations

Method used

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  • Metal early corrosion probe and preparation method thereof
  • Metal early corrosion probe and preparation method thereof
  • Metal early corrosion probe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Dissolve 0.68g of zinc acetate dihydrate in 100mL of absolute ethanol to prepare zinc acetate ethanol solution; add 0.25g of sodium hydroxide to the mixed solution of absolute ethanol and deionized water (25mL of absolute ethanol and 10mL of deionized water) In, configure the sodium hydroxide solution. Weigh the existing ZnGa 2 o 4 :0.05Cr 3+ Particles 0.11g, grind until uniform and fine; then disperse it in the above-mentioned zinc acetate ethanol solution, stir and ultrasonic, make ZnGa 2 o 4 :0.05Cr 3+ The particles are uniformly dispersed in the solution without sedimentation. will contain ZnGa 2 o 4 :0.05Cr 3+ Put the suspension in a water bath and heat and stir (at a temperature of 60°C), then slowly add the prepared sodium hydroxide solution into it, after the dropwise addition is completed, seal the container containing the suspension, and continue heating and stirring for 4h . After heating and stirring, the suspension was centrifuged to obtain the bo...

Embodiment 2

[0049] Measure 1 mL of tetrabutyl titanate, dissolve it in 5 mL of absolute ethanol, and prepare tetrabutyl titanate ethanol solution. Weigh the existing ZnGa 2 o 4 :0.05Cr 3+ Grind 0.11 g of particles until uniform and fine; then disperse them into a mixed solution of absolute ethanol and deionized water (85 mL of absolute ethanol, 10 mL of deionized water), stir and sonicate to obtain a uniformly dispersed suspension; Nitric acid adjusted the pH of the suspension to 3.0. The prepared tetrabutyl titanate ethanol solution was slowly added to the suspension, and the suspension was continuously stirred during the addition process, and then the container containing the suspension was closed and the stirring was continued for 2 hours. After the stirring, the suspension was centrifuged to obtain the bottom precipitate, washed twice with absolute ethanol, dried at 50°C for 24h, and then the obtained powder was calcined at 500°C for 2h in an air atmosphere. Finally, the fluoresce...

Embodiment 3

[0052] Dissolve 0.68g of zinc acetate dihydrate in 100mL of absolute ethanol to prepare zinc acetate ethanol solution; add 0.25g of sodium hydroxide to the mixed solution of absolute ethanol and deionized water (25mL of absolute ethanol and 10mL of deionized water) In, configure the sodium hydroxide solution. Weigh the existing Y 2 o 3 :Eu 3+ Granules 0.11g, grind until uniform and fine; then disperse it into the above-mentioned zinc acetate ethanol solution, stir and sonicate to make Y 2 o 3 :Eu 3+ The particles are uniformly dispersed in the solution without sedimentation. will contain Y 2 o 3 :Eu 3+ Put the suspension in a water bath and heat and stir (at a temperature of 60°C), then slowly add the prepared sodium hydroxide solution into it, after the dropwise addition is completed, seal the container containing the suspension, and continue heating and stirring for 4h . After heating and stirring, the suspension was centrifuged to obtain the bottom precipitate, wa...

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Abstract

The invention belongs to the field of material science, and provides a metal early corrosion probe and a preparation method thereof. The fluorescent probe with excellent performance is prepared by a method of coating ZnO or TiO2 on the surface of an inorganic luminescent material which can generate luminescence or afterglow under the excitation of ultraviolet light. The fluorescent probe is an inorganic substance, and is not easy to age and long in service life; the emitted near-infrared light has strong penetrating power on organic matters; the fluorescent probe also has afterglow emission performance, gets rid of the limitation that corrosion detection needs real-time excitation, and solves the problem of excitation light noise. The fluorescent probe prepared by the method is high in coating degree and good in compactness, and the coating thickness is easy to regulate and control. And the method is simple to operate, relatively low in cost, green and environment-friendly, shows a good theoretical basis for synthesis of novel fluorescent probes, and has extremely high guiding significance and application prospects.

Description

technical field [0001] The invention belongs to the field of material science, in particular to a metal early corrosion probe and a preparation method. Background technique [0002] Corrosion exists in all areas of people's production and life. Every year, there are countless serious accidents caused by corrosion damage, which brings huge economic losses. Therefore, the corrosion protection and corrosion detection of metals are issues that people have to pay attention to. Metal corrosion detection can monitor the corrosion state of equipment in various working environments and other related information, so as to obtain changes in equipment performance and structure, and avoid major accidents and economic losses. Compared with eddy current, optical fiber, ultrasonic and other corrosion detection technologies, fluorescent corrosion detection technology has an important and irreplaceable position in the field of metal corrosion detection because of its simple, visible and non-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/62C09K11/78G01N21/64
CPCC09K11/623C09K11/7785G01N21/6402
Inventor 朱琦贾洪帅张涛
Owner NORTHEASTERN UNIV
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