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Novel nano temperature testing material preparation method

A nano and new technology, applied in the preparation and application of light-excited luminescent materials, can solve the problems of complex measurement methods, difficult industrialization, high equipment cost, etc., and achieve the effect of realizing response efficiency, fast and accurate visualization of temperature sensors

Inactive Publication Date: 2019-09-17
SHANGHAI DONGZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The change of the color coordinates (x, y) corresponding to the luminescent color of the material with the temperature satisfies the linear equation track, and the fluorescent discoloration under the excitation of ultraviolet light can be used to roughly qualitatively calibrate the temperature; this invention can realize high-sensitivity temperature measurement, but The measurement method is more complicated, the equipment cost is higher, and it is difficult to industrialize

Method used

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  • Novel nano temperature testing material preparation method
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Examples

Experimental program
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Effect test

Embodiment 1

[0027] Weigh 7.00g of lanthanum oxide, 2.00g of neodymium oxide, and 1.00g of dysprosium oxide into a beaker, add 10mL of 36% dilute nitric acid solution, stir and dissolve at room temperature, and heat each solution on an electric furnace after the dissolution is completed. Crystallize, evaporate excess nitric acid solution, then add 100mL deionized water to dilute into a neutral solution, then mix the three solutions and add 1.00g of EDTA, stir well and place in a reactor at 80°C to stir for 4 hours; react After completion, wash 7 times with deionized water, then use a centrifuge to separate the solid powder and then place it in a vacuum oven and dry it at 80°C for 3 hours. After the drying is completed, add sodium fluoride flux with a weight ratio of 3.00g, and ball mill it evenly Then put it in the atmosphere reaction furnace, adjust the inert gas N 2 and reducing gas H 2 The feeding rate is 3:1, react at 100°C for 3 hours; after the reaction is completed, soak the powder...

Embodiment 2

[0029] Weigh 7.00g of gadolinium oxide, 2.00g of praseodymium oxide, and 1.00g of europium oxide into a beaker, add 15mL of 36% dilute nitric acid solution, stir and dissolve at room temperature, and heat each solution on an electric furnace after the dissolution is completed. Crystallize, evaporate excess nitric acid solution, then add 80mL deionized water to dilute into neutral solution respectively, then add 1.00gEDTA after the three kinds of solutions are mixed, stir and put in the reaction kettle under 80 ℃ and stir for 5 hours; react After completion, wash with deionized water 5 times, then use a centrifuge to separate the solid powder and then place it in a vacuum oven and dry it at 80°C for 5 hours. After the drying is completed, add sodium fluoride flux with a weight ratio of 3.50g, and ball mill it evenly Then put it in the atmosphere reaction furnace, adjust the inert gas N 2 and reducing gas H 2 The feeding rate is 3:1, react at 200°C for 3 hours; after the reacti...

Embodiment 3

[0031] Weigh 5.00g of lanthanum oxide, 2.00g of yttrium oxide, 1.50g of praseodymium oxide, 0.50g of bismuth oxide, 0.60g of europium oxide, and 0.40g of samarium oxide and place them in a beaker, add 10mL of 36% dilute nitric acid solution, and stir at room temperature Dissolve, after the dissolution is completed, place each solution on an electric furnace to heat and crystallize, evaporate the excess nitric acid solution, then add 100mL deionized water to dilute into a neutral solution, then mix the three solutions and add 1.00g EDTA, stir evenly and place Stir and react in the reactor at 80°C for 3 hours; wash with deionized water 7 times after the reaction is completed, then use a centrifuge to separate the solid powder and place it in a vacuum oven to dry at 80°C for 3 hours. Add sodium fluoride flux with a weight ratio of 5.00g, put it in the atmosphere reaction furnace after ball milling, and adjust the inert gas N 2 and reducing gas H 2 The feeding rate is 3:1, react ...

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Abstract

The invention discloses a novel nano temperature testing material preparation method. By using a hydrothermal method, a precursor material is synthesized by using a high-temperature reaction kettle, and by adjusting concentrations of different excitants, a material with different temperature responses is prepared in an inert and reduction atmosphere in an atmosphere reaction furnace, and the material emits orange red light of which the wavelength is 600-680nm under excitation of a light source of 200-400nm; by virtue of properties of different types of the excitants and response efficiency of different concentrations, a nano material with two properties that light emission efficiency is degraded and improved along with increase of temperatures is prepared, and synthesis of the material with controllable material granularities within 100-500nm is achieved; by using a spraying and printing process, the material is smeared to the surface of an article, and change of temperatures inside and outside the article can be achieved by detecting the light emission efficiency of the material; and in the field of wind tunnel testing, stress data of different parts can be rapidly and accurately acquired, and meanwhile, the material has optimal application prospects in special fields such as oil well exploration and nuclear test leakage detection.

Description

technical field [0001] The invention belongs to the preparation and application technology of light-excited luminescent materials. Background technique [0002] Optical thermometry material is a kind of functional material whose luminescence characteristics will change drastically with the change of ambient temperature under the irradiation of excitation light source; by monitoring the corresponding temperature-dependent spectral change in this kind of material, it can be obtained indirectly around the material. ambient temperature. Such materials have good application prospects in technical fields such as geological exploration, temperature monitoring of combustion and high-speed moving objects, tumor magnetothermal therapy, and on-line temperature monitoring in living organisms. Generally speaking, optical temperature measurement materials with excellent performance should have the characteristics of high light conversion rate, sensitive temperature response, and fast att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78G01K11/20
CPCC09K11/7769C09K11/7787G01K11/20
Inventor 耿树范郭素文郑岩陈磊侯成义姚善旭郭洋张志军刘洁
Owner SHANGHAI DONGZHOU IND
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