Influence of Synthesis Process on Mechanical and Electrical Characteristics of Mesoporous Pure Silica-Zeolite
| Autor: | Takenobu Yoshino, T. Seo, Yoshinori Cho, Takamaro Kikkawa, N. Ohnuki, Nobuhiro Hata, Yutaka Seino |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Dielectric strength Renewable Energy Sustainability and the Environment Time-dependent gate oxide breakdown Dielectric Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Materials Chemistry Electrochemistry Hardening (metallurgy) Composite material Mesoporous material Zeolite Porosity Elastic modulus |
| Zdroj: | Journal of The Electrochemical Society. 158:H659-H665 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.3570582 |
| Popis: | The dielectric constant, elastic modulus and reliability of the pure silica-zeolite composite film which was formed by self-assembly of porous silica having hydrothermally crystallized zeolite nanoparticles. Fourier-transform-infrared spectroscopy indicated that Si-OH and O-H bonds decreased by zeolite formation, resulting in the decrease of the dielectric constant. Silylation hardening by 1,3,5,7-tetramethylcyclotetrasiloxane (TMCTS) vapor treatment could decrease the dielectric constant due to the decrease of Si-OH and O-H bonds. The elastic modulus of 7.03 GPa and the dielectric constant of 1.94 were achieved for the meso-porous silica-zeolite film by silylation hardening. Furthermore, mean-time-to-failure (MTF) lifetime of time-dependent dielectric breakdown (TDDB) is longer than ten years at 125°C under the electric field of 3.4 MV/cm. |
| Databáze: | OpenAIRE |
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