Please use this identifier to cite or link to this item: doi:10.22028/D291-24412
Title: Sol-gel derived thick coatings and their thermomechanical and optical properties
Author(s): Mennig, Martin
Jonschker, Gerhard
Schmidt, Helmut K.
Language: English
Year of Publication: 1992
OPUS Source: Sol-gel optics II : 20 - 22 July 1992, San Diego, California ; proceedings / John D. Mackenzie, chair/ed. - Bellingham, Wash. : SPIE, 1992. - (SPIE proceedings series ; 1758), S. 125-134
SWD key words: Thermochemie
Optische Eigenschaft
DDC notations: 620 Engineering and machine engineering
Publikation type: Conference Paper
Abstract: The preparation of crackfree and transparent SiO2 coatings on soda lime glass with thicknesses of about 8 µm after densification at 500°C is presented. The high thickness can be obtained by using on 80:20 mixture of methyltriethoxysilane and tetraethyl orthosilicate as alkoxide precursors in combination with an aqueous colloidal SiO2 sol with particle sizes of about 7 nm. This principle of synthesis is also applied to ZrO2 containing coatings yielding to thickness of about 3 µm. Refractive index measurements indicate that the coatings are nearly completely densified. At higher temperatures tensile stresses appear within the layers and are transmitted to the substrate, increasing its thermal stability.
Link to this record: urn:nbn:de:bsz:291-scidok-27180
Date of registration: 22-Feb-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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