Red luminous paint
A technology of red light-emitting and light-emitting materials, applied in the directions of light-emitting coatings, polyester coatings, epoxy resin coatings, etc., can solve the problem of high temperature measurement temperature in the corresponding area, and achieve the effects of simple method, good economic benefits, and improved temperature measurement accuracy.
Active Publication Date: 2011-11-16
CHINA ACAD OF AEROSPACE AERODYNAMICS +1
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Problems solved by technology
[0010] The currently used phosphorescence temperature measurement technology has a relatively high temperature measurement area, and is more sensitive above 373K
Method used
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[0027] Specific examples are shown in the following table:
[0028]
[0029]
[0030] Only take Example 3 as an example to briefly describe the preparation process of the present invention, and the principles of the preparation process of other embodiments are the same.
[0031] (1) The chemical formula prepared by traditional high-temperature solid phase method is: Ba 2 ZnS 3 :aEu 2+ (a=0.05) Luminescent material.
[0032] The raw materials are barium oxide, zinc oxide, europium trioxide and sulfur. Weigh the raw materials according to the stoichiometric ratio, grind and mix them evenly, burn the raw materials in a closed crucible at 900-1200°C for 1-20 hours, and then take them out of the furnace to cool to obtain the blocky red luminescent material Ba 2 ZnS 3 :0.05Eu 2+ .
[0033] (2) The bulk red luminescent material Ba 2 ZnS 3 :aEu 2+ After being roughly crushed by a jaw crusher, it is ground into a fine powder by a ball mill, passed through a 250-mesh sie...
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The invention relates to red luminous paint which comprises matrix paint and a luminous material, wherein the chemical formula of the luminous material is Ba2ZnS3:aEu<2+>, and the range of atom ratio a is 0.001-1; the matrix paint is paint capable of transmitting light with a wavelength less than 460 nano; and the mass percentage of the luminous material is 3-70%, and the mass percentage of the matrix paint is 30-97%. In the invention, the luminous material Ba2ZnS3:aEu<2+> is used, which is sensitive to a temperature in a temperature interval from room temperature to 450K; and the red-light-emitting strength of the luminous material varies linearly with temperatures along with variation of temperatures, thereby precisely reflecting the temperature in a temperature interval from room temperature to 450K. Thus, the red luminous paint can be used for phosphorescent temperature measurement within temperature range from room temperature to 450K.
Description
technical field [0001] The invention relates to a red luminescent paint, which is used for non-contact temperature testing and belongs to the technical field of luminescent paint. Background technique [0002] In the field of aerospace, with the development of high-speed aircraft, aerodynamic thermodynamics is facing a series of aerodynamic heat transfer problems that need to be solved urgently. For example, separation and vortex flow caused by mutual interference between shock wave and boundary layer; turbulent flow structure; supersonic / hypersonic flow characteristics around protrusions; three-dimensional separation flow at high angle of attack, etc. In the field of heat transfer in engineering thermophysics, research on enhanced heat transfer, jet cooling technology, and heat transfer phenomena in complex structures also encountered some complex heat transfer problems. The study of these complex phenomena requires a comprehensive understanding of the heat exchange proces...
Claims
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Login to View More IPC IPC(8): C09D5/22C09D7/12C09D183/00C09D133/00C09D163/00C09D167/00C09D161/20C09D167/08C09D161/06G01K11/20
Inventor 李锋张洪杰毕志献李成宇伍超华师丽丽韩曙光苏锵李睿劬刘训华
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS