Effect of UV-Ray Irradiation on the Crack Formation of Ceramic Thin Film on Polymer Substrate
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- OMIYA Masaki
- Dept. of Mech. and Control Eng., Tokyo Inst. of Tech.
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- KISHIMOTO Kikuo
- Dept. of Mech. and Control Eng., Tokyo Inst. of Tech.
Bibliographic Information
- Other Title
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- 高分子基材上におけるセラミックス薄膜のき裂形成に及ぼす紫外線の影響
- コウブンシ キザイ ジョウ ニ オケル セラミックス ハクマク ノ キレツ ケイセイ ニ オヨボス シガイセン ノ エイキョウ
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Abstract
The aim of this paper is to investigate the effect of ultra-violet (UV) ray irradiation on the crack formation of brittle ceramic coating on polymer substrate. It is well known that ultra-violet ray irradiation degrades the mechanical properties of polymer and polymer-based coating films. We carried out the tensile tests of PET/ITO film specimen after UV irradiation under the microscope and observed the crack formation on ITO surface. Also, we carried out nano-indentation tests of PET substrate after removing ITO layer to characterize the change of the mechanical properties near the interface between PET and ITO. The results show that the number of cracks vertical to loading direction and the rate of vertical crack formation decreased after UV irradiation. Young's modulus and hardness of PET substrate increase due to the oxidation of PET after UV irradiation. To explain the relationship between the crack formation and mechanical property change, the energy release rates of the thin film on the substrate are considered. Also, the tensile stresses induced in cracking film are estimated by simple shear lag model.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 55 (12), 1081-1087, 2006
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390001205418104576
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- NII Article ID
- 110006570873
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 8615871
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed