Effect of surface condition on the microcreep of optical glass ceramic, fused quartz glass, and certain crown-type silicate glasses at room temperature

1987 ◽  
Vol 19 (6) ◽  
pp. 832-837
Author(s):  
A. A. Dvorskii ◽  
V. P. Maslov ◽  
V. N. Novikov
Keyword(s):  
Quartz Glass ◽  
Glass Ceramic ◽  
Room Temperature ◽  
Optical Glass ◽  
Surface Condition ◽  
Silicate Glasses ◽  
Fused Quartz ◽  
Effect Of Surface

Effect of side surface condition on the strength of optical glass ceramic under biaxial compression

1989 ◽  
Vol 21 (7) ◽  
pp. 923-927
Author(s):  
Yu. M. Rodichev ◽  
L. R. Gaevskaya ◽  
V. L. Stepchenko ◽  
G. M. Okhrimenko
Keyword(s):  
Glass Ceramic ◽  
Optical Glass ◽  
Surface Condition ◽  
Side Surface ◽  
Biaxial Compression

Deposition of Thin Films of Silicon Carbide on Fused Quartz and on Sapphire by Laser Ablation of Ceramic Silicon Carbide Targets

1992 ◽  
Vol 285 ◽  
Author(s):  
L. Rimai ◽  
R. Ager ◽  
J. Hangas ◽  
E. M. Loaothetis ◽  
Nayef Abu-ageel ◽  
...  
Keyword(s):  
Thin Films ◽  
Silicon Carbide ◽  
Room Temperature ◽  
Optical Band Gap ◽  
Energy Gap ◽  
Fused Silica ◽  
High Resistivity ◽  
Fused Quartz ◽  
Amorphous Sic ◽  
Very High

ABSTRACTAblation of ceramic silicon carbide with 351 nm excimer radiation was used to depositSIC films on fused silica and on sapphire. For deposition temperatures above 850° C, diffraction shows the films to be crystalline with the [111] axis preferentially oriented normally to the film. Optical spectra show an indirect energy gap at 2.2 eV, near that for the cubic polytype, although the 200 diffractions are absent. Room temperature resistivities range between .02 to .1 Ωcm. Deposition below 600° C yields amorphous SiC with no diffraction bands, low and variable optical band gap and very high resistivity.

Effect of surface condition on the oxidation behaviour of MCrAlY coatings

2006 ◽  
Vol 201 (7) ◽  
pp. 3824-3828 ◽  
Author(s):  
A. Gil ◽  
V. Shemet ◽  
R. Vassen ◽  
M. Subanovic ◽  
J. Toscano ◽  
...  
Keyword(s):  
Surface Condition ◽  
Oxidation Behaviour ◽  
Mcraly Coatings ◽  
Effect Of Surface

THE EFFECT OF SURFACE CONDITION ON THE INTERFACE MECHANICS AND BONE GROWTH ONTO LTI CARBON

1983 ◽  
pp. 345-348
Author(s):  
K.A. Thomas ◽  
S.D. Cook ◽  
R.C. Anderson ◽  
E.A. Renz ◽  
A.D. Haubold ◽  
...  
Keyword(s):  
Bone Growth ◽  
Surface Condition ◽  
Interface Mechanics ◽  
Effect Of Surface

scholarly journals Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 348 ◽  
Author(s):  
Hsiang-Jung Wu ◽  
Kota Tanabe ◽  
Hiroki Nagai ◽  
Mitsunobu Sato
Keyword(s):  
Thin Films ◽  
Uv Irradiation ◽  
Quartz Glass ◽  
Room Temperature ◽  
Contact Angles ◽  
Chemical Components ◽  
Precursor Film ◽  
Dark Condition ◽  
Xps Spectra ◽  
Molecular Precursor

Photo-induced super-hydrophilic thin films were fabricated on a quartz glass substrate by ultraviolet (UV) irradiation of a molecular precursor film at room temperature. A molecular precursor film exhibiting high solubility to both ethanol and water was obtained by spin-coating a solution involving a Ti(IV) complex; this complex was prepared by the reaction of Ti(IV) alkoxide with butylammonium hydrogen oxalate and hydrogen peroxide in ethanol. Transparent and well-adhered amorphous thin films of 160–170 nm thickness were obtained by weak UV irradiation (4 mW·cm−2 at 254 nm) of the precursor films for over 4 h at room temperature. The resultant thin films exhibiting low refractive indices of 1.78–1.79 were mechanically robust and water-insoluble. The chemical components of the thin films were examined by means of Fourier transform-infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS) spectra, focusing on the presence of the original ligands. The super-hydrophilic properties (evaluated based on the water contact angles on the surfaces) of the thin films after being kept in a dark condition overnight emerged when the aforementioned UV-light irradiation was performed for 10 min. It was additionally clarified that the super-hydrophilicity can be photo-induced repeatedly by UV irradiation for 10 min (indicated by a contact angle smaller than 4°) even after the hydrophilic level of the thin films had once been lowered by being in a dark condition for 4 h.

Sign in / Sign up

Export Citation Format

Share Document