|
Vol.42, No.11, 887 ~ 895, 2004
|
| Title |
| A Study on the Mechno-luminescent SrAl2O4:Eu,Dy Thin Film Produced by Pulsed Laser Deposition for Stress or Crack Indicating Application |
| 박덕현 Duk Hyun Park , 손기선 Kee Sun Sohn , 김지식 Ji Sik Kim |
|
|
|
| Abstract |
| A mechno-luminescent SrAl₂O₄:Eu,Dy thin film phosphor on the surface of mechanical test specimen was developed for stress or crack indicating applications. As a preliminary step, SrAl₂O₄:Eu,Dy thin film phosphors were deposited on several conventional substrates such as quartz glass, Si(111), Si(001), and corrugated quartz glass using a pulsed laser deposition (PLD) technique. Processing parameters were optimized, in an attempt to enhance the efficiency of luminescent of the SrAl₂O₄:Eu,Dy thin film phosphor. The SrAl₂O₄:Eu,Dy thin film phosphor was also deposited on the surface of a compact tension specimen composed of polycrystalline Al₂O₃ and the applicability of the SrAl₂O4:Eu,Dy thin film phosphor as a stress or crack indicator was verified in an actual mechanical test. (Received July 14, 2004) |
|
|
| Key Words |
| Mechano-luminescence (ML) material, Pulsed Laser Deposition, PLD, SrAl2O4:Eu,Dy thin film phosphor |
|
|
 |
|
