Alternative modification methods for sol-gel coatings of silica, titania and silica-titania using ultraviolet irradiation and water vapor

被引：0

作者：

Imai, H ^{[1
]}

Hirashima, H ^{[1
]}

Awazu, K ^{[1
]}

机构：

[1] Keio Univ, Fac Sci & Technol, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan

来源：

2ND INTERNATIONAL CONFERENCE ON COATINGS ON GLASS, ICCG: HIGH-PERFORMANCE COATINGS FOR TRANSPARENT SYSTEMS IN LARGE-AREA AND/OR HIGH-VOLUME APPLICATIONS | 1999年

关键词：

silicon oxide; ttitanium oxide; laser irradiation; water;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigated relatively new techniques for densification and crystallization of sol-gel silica, titania and silica-titania coatings at relatively low temperatures. irradiation of ultraviolet photons above the hand-gap energy was found to lead shrinkage of the sol-gel films through electronic excitations. Crystallization of sol-gel titania coatings was achieved by irradiation of ultraviolet laser (4.7 eV) beam. Exposure to water vapor was shown to he effective in rearrangement of sol-gel films causing densification of silica, crystallization of titania and phase separation of silica-titania around 100 degrees C. These techniques are useful for preparation of hard silica coatings and crystalline titania films on low-heat-resistant substrates, such as polymer prates.

引用

页码：160 / 163

页数：4

共 50 条

[41] Synthesis and characterization of silica-titania nanocomposite via a combination of sol-gel and mechanochemical process
Ting, P. K.
Hussain, Z.
Cheong, K. Y.
JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 466 (1-2) : 304 - 307
[42] Homogeneity of sol-gel derived silica-titania waveguide films - Spectroscopic and AFM studies
Karasinski, P.
Domanowska, A.
Gondek, E.
Sikora, A.
Tyszkiewicz, C.
Skolik, M.
OPTICS AND LASER TECHNOLOGY, 2020, 121
[43] Synthesis and Characterization of New Silica-Titania Mixed Oxides Obtained by Sol-Gel Technique
Elia, A.
Martin Aispuro, P.
Quaranta, N.
Martin-Martinez, J. M.
Vazquez, P.
EUROFILLERS, 2011, 301 : 136 - 145
[44] Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
Islam, Shumaila
Bidin, Noriah
Riaz, Saira
Naseem, Shahzad
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2016, 34 : 258 - 268
[45] Immobilization of metallocene within silica-titania by a non-hydrolytic sol-gel method
Fisch, Adriano G.
Cardozo, Nilo S. M.
Secchi, Argimiro R.
Stedile, Fernanda C.
Livotto, Paolo R.
de Sa, Denise S.
da Rocha, Zenis N.
dos Santos, Joao H. Z.
APPLIED CATALYSIS A-GENERAL, 2009, 354 (1-2) : 88 - 101
[46] Synthesis and characterization of silica-titania nanocomposite via a combination of sol-gel and mechanochemical process
Ting, P.K.
Hussain, Z.
Cheong, K.Y.
1600, Elsevier BV (466): : 1 - 2
[47] Titania on silica. A comparison of sol-gel routes and traditional methods
Brunel Univ, Middlesex, United Kingdom
J Sol Gel Sci Technol, 1-3 (131-137):
[48] Titania on Silica. A Comparison of Sol-Gel Routes and Traditional Methods
M. Montes
F.P. Getton
M.S.W. Vong
P.A. Sermon
Journal of Sol-Gel Science and Technology, 1997, 8 : 131 - 137
[49] Titania on silica. A comparison of sol-gel routes and traditional methods
M. Montes
F. P. Getton
M. S. W. Vong
P. A. Sermon
Journal of Sol-Gel Science and Technology, 1997, 8 : 131 - 137
[50] Titania on silica. A comparison of sol-gel routes and traditional methods
Montes, M
Getton, FP
Vong, MSW
Sermon, PA
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1997, 8 (1-3) : 131 - 137

← 1 2 3 4 5 →