Mechanoluminescence of SrAl2O4: Eu,Dy Film Induced by Ultrasound

FU Xiao-yan; FANG Li-jun; ZHENG Sheng-hui; ZHANG Hong-wu

doi:10.3788/fgxb20163709.1066

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Mechanoluminescence of SrAl₂O₄: Eu,Dy Film Induced by Ultrasound

更新时间：2020-08-12

- Mechanoluminescence of SrAl₂O₄: Eu,Dy Film Induced by Ultrasound
- Chinese Journal of Luminescence Vol. 37, Issue 9, Pages: 1066-1070(2016)
- 作者机构：
  
  1. 中国科学院城市环境研究所, 福建厦门 361021
  2. 厦门理工学院材料科学与工程学院福建省功能材料及应用重点实验室, 福建厦门 361024
  3. 辽宁师范大学化学与化工学院, 辽宁大连 116029
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163709.1066
  CLC： O482.31
- Received：22 April 2016，
  
  Revised：17 May 2016，
  
  Published：05 September 2016
- 稿件说明：
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付晓燕, 房立钧, 郑升辉, 张洪武. 超声引起的SrAl2O4:Eu,Dy薄膜的应力发光[J]. 发光学报, 2016,37(9): 1066-1070

FU Xiao-yan, FANG Li-jun, ZHENG Sheng-hui, ZHANG Hong-wu. Mechanoluminescence of SrAl2O4: Eu,Dy Film Induced by Ultrasound[J]. 发光学报, 2016,37(9): 1066-1070
付晓燕, 房立钧, 郑升辉, 张洪武. 超声引起的SrAl2O4:Eu,Dy薄膜的应力发光[J]. 发光学报, 2016,37(9): 1066-1070 DOI： 10.3788/fgxb20163709.1066.

FU Xiao-yan, FANG Li-jun, ZHENG Sheng-hui, ZHANG Hong-wu. Mechanoluminescence of SrAl2O4: Eu,Dy Film Induced by Ultrasound[J]. 发光学报, 2016,37(9): 1066-1070 DOI： 10.3788/fgxb20163709.1066.

摘要

为了实现超声探伤和应力发光探伤二者结合，研究了SrAl

：Eu，Dy（SAOED）/硅橡胶在超声振动下的应力发光性质。薄膜的微观结构表明，SrAl

：Eu，Dy应力发光颗粒被高弹性的硅胶包裹。当超声波作用到薄膜表面时，超声振动可以促使应力发光颗粒周围的硅橡胶发生各种形变，从而使被包裹的应力发光颗粒发生有效形变，产生高效的应力发光。薄膜厚度以及超声频率对SAOED发光薄膜的应力发光有明显的影响。薄膜的超声应力发光强度随着薄膜厚度的增加先增大，当薄膜的厚度为1 mm时达到最大，之后随着薄膜厚度的增加而降低。薄膜的超声应力发光强度与超声频率大小成正比，即使最低频率仅为500 Hz时仍能检测到信号，说明SrAl

：Eu，Dy/硅橡胶发光薄膜是一种很有应用前途的无损检测传感器。

Abstract

In order to realize the application of mechanoluminescent materials in novel nondestructive examination sensors with high sensitivity

the ultrasound induced mechanoluminescent (ML) properties of SrAl

:Eu

Dy/Si rubber films were investigated. The ML particles were wrapped by Si rubberwith high elasticity. When the ultrasonic wave was applied on the film

the vibration induced the deformation of Si rubber easily. Then the particles wrapped by rubber deformed accordingly to produce strong ML. The experiment results indicate that the film thickness and ultrasonic frequency have strong effects on the ML intensity. The ML intensity enhances with the increasing of the film thickness

and reaches the strongest at 1 mm

then decreases with the increasing of the film thickness. The ML intensity enhances with the increasing of the ultrasonic frequency. Furthermore

even the ultrasonic frequency was as low as 500 Hz

the SrAl

:Eu

Dy/Si rubber films still can produce resolvable ML. These results indicate that SrAl

:Eu

Dy/Si rubber films possess great potential in the nondestructive examination sensors.

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Keywords

references

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