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Piezoelectric elastic-stress luminescent material and production method thereof

A stress luminescence, elastic-like technology, applied in the direction of luminescent materials, the measurement of the property force of piezoelectric devices, and the analysis of materials, etc., to achieve the effects of excellent physical properties, obvious economic value, and a wide range of adaptable energy.

Inactive Publication Date: 2012-08-15
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the currently developed and publicly used SrAl 2 o 4 :Eu 2+ (Dy 3+ ,Nd 3+ ), ZnS:Mn 2+ , Ca 2 Al 2 SiO 7 : Ce 3+ , BaTiO 3 -CaTiO 3 :Pr 3+ , SrAl 2 o 4 : Ce 3+ (Ho 3+ ), CaMgSi 2 o 7 :Eu 2+ (Dy 3+ ), CaAl 2 Si 2 o 8 :Eu 2+ 、CaYAl 3 o 7 :Eu 2+ and SrMg 2 (PO 4 ) 2 :Eu 2+ More than ten kinds of elastic stress luminescent materials, such as ZnS:Mn 2+ and BaTiO 3 -CaTiO 3 :Pr 3+ The material can respond to a single form of mechanical stress and cannot respond to multiple stresses; while SrAl 2 o 4 :Eu 2+ Although the material can respond to a variety of stresses, the afterglow of stress luminescence is too long, and the halo of compression luminescence and the movement track of triboluminescence can be clearly observed by the naked eye within a few minutes, which seriously weakens the accuracy of optical signals and stress images. resolution

Method used

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  • Piezoelectric elastic-stress luminescent material and production method thereof
  • Piezoelectric elastic-stress luminescent material and production method thereof
  • Piezoelectric elastic-stress luminescent material and production method thereof

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Embodiment 1-6

[0021] Raw material Ba, Sr, Ca in this embodiment adopts its carbonate as raw material, Zn adopts zinc sulfide as raw material, Mg, Al, Mn adopts its carbonate or oxide as raw material, transition metal Cu, Cr, Ag and Cd, rare earth sensitizers Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er and Tm, alkali metals Li, Na, K and Rb use their oxides or nitrates as raw materials, according to their molecular formula (Ca 1-x m x )(Zn1-y N y ) 1-a OS:(Mn 1-z R z ) a , where, 0≤x≤0.5, 0≤y≤0.5, 0≤z≤0.5, 0≤a≤0.3; M represents the Ca substitution ion, selected from Mg 2+ 、Sr 2+ 、Ba 2+ One or more than two kinds of divalent ions; N represents the Zn position replacement ion, selected from Mg 2+ 、Al 3+ One or two of the ions; R represents a co-doped transition metal or rare earth sensitizer ion, and a monovalent alkali metal ion that plays a charge coordination role, selected from the transition metal ion Cu + 、Cu 2+ 、Cr 3+ 、Ag + and Cd 2+ , or the rare earth sensitizer ion Ce 3+ 、Pr 3...

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Abstract

The invention belongs to the technical field of materials physics and relates to piezoelectric elastic-stress luminescent material and a production method thereof. The piezoelectric elastic-stress luminescent material is produced by using CaZnOS:Mn (thioxo-inorganic compound) activated by transitional metal manganous ions as substrate, subsitituting Ca-site and Zn-site metallic ions, and subjecting transitional metal and rear earth sensitizer ions to co-doping. A chemical formula of the luminescent material is (Ca1-xMx)(Zn1-yNy)1-aOS:(Mn1-zRz)a, wherein M stands for Ca-site substitute ions, Mg2+, Sr2+ and Ba2+ are selected, N stands for Zn-site substitute ions, Mg2+ and Al3+ selected, R stands for co-doped transitional metal or rear earth sensitive ions from Cu+, Cu2+, Cr3+, Ag+ and the like, and x, y, z and a stand for molar content and are not zero simultaneously. The production method of the material is simple in process, reliable in principle, low in cost, high in stress luminescence quality, fine in mechanical property, high in processibility, wide in application range and evident in economic value.

Description

Technical field: [0001] The invention belongs to the technical field of material physics, and relates to a piezoelectric elastic stress luminescent material and a preparation method thereof, in particular to a piezoelectric elastic stress luminescent material responsive to various stresses and a preparation technology thereof. The luminescent material is based on CaZnOS:Mn, a sulfur-oxyl inorganic compound activated by transition metal divalent manganese ions, and is prepared by substituting Ca and Zn metal ions, and co-doping with transition metal and rare earth sensitizer ions. Background technique: [0002] At present, the real-time detection technology of stress distribution is widely used in robot manufacturing, industrial production monitoring, urban building safety management, aerospace and other fields, and is a research hotspot of professionals at home and abroad. In recent years, the elastic stress luminescent material developed by people has the characteristic tha...

Claims

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Application Information

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IPC IPC(8): C09K11/56G01L1/16G01N19/04
Inventor 张君诚
Owner QINGDAO UNIV
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