Preparation of Gradient-Index Glass Rods by the Sol-Gel Process

1986 ◽  
Vol 73 ◽  
Author(s):  
Masayuki Yamane ◽  
J. Brian Caldwell ◽  
Duncan T. Moore
Keyword(s):  
Liquid Phase ◽  
Sol Gel ◽  
Composition Gradient ◽  
Gradient Index ◽  
Sol Gel Process ◽  
Gel Technique ◽  
Glass Rods

ABSTRACTThe fabrication of gradient-index material via the sol-gel technique is reported. The material is based on the PbO-B2O3-SiO2 system and a K2 O- PbO liquid phase interdiffusion is used to produce the necessary composition gradient.

Studies on the Reproducible Production of Grin (Gradient Index) Glass Rods By A Sol-Gel Process

1990 ◽  
Vol 180 ◽  
Author(s):  
J. Brian Caldwell ◽  
Tessie M. Che ◽  
Richard W. Cruse ◽  
Robert M. Mininni ◽  
Randall E. Nikles ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Sol Gel ◽  
Optical Quality ◽  
Optical Data ◽  
Gradient Index ◽  
Radial Gradient ◽  
Sol Gel Process ◽  
Glass Rods

ABSTRACTOptical quality radial gradient-index (GRIN) glass can be made by first leaching a TiO2-Al2O3-SiO2 gel in aqueous sulfuric acid solution, then drying and firing the gel. In this paper, we present details of a study on the reproducible production of GRIN glasses by this sol-gel process. Physical and optical data on the intermediate gels and resulting gradient-index glass will be discussed.

Preparation of gradient-index glass rods by the sol-gel process

1986 ◽  
Vol 85 (1-2) ◽  
pp. 244-246 ◽  
Author(s):  
Masayuki Yamane ◽  
J.Brian Caldwell ◽  
Duncan T. Moore
Keyword(s):  
Sol Gel ◽  
Gradient Index ◽  
Sol Gel Process ◽  
Glass Rods

Gradient-index glass rods of PbOK2OB2O3SiO2 system prepared by the sol-gel process

1988 ◽  
Vol 100 (1-3) ◽  
pp. 506-510 ◽  
Author(s):  
Masayuki Yamane ◽  
Hiroshi Kawazoe ◽  
Atsuo Yasumori ◽  
Toshikazu Takahashi
Keyword(s):  
Sol Gel ◽  
Gradient Index ◽  
Sio2 System ◽  
Sol Gel Process ◽  
Glass Rods

Reflectivity of gradient-index multi-coated films prepared by the sol-gel process

1994 ◽  
Vol 238 (2) ◽  
pp. 163-166 ◽  
Author(s):  
Toshikazu Nishide ◽  
Makoto Shinoda ◽  
Fujio Mizukami
Keyword(s):  
Sol Gel ◽  
Gradient Index ◽  
Sol Gel Process

Preparation and Properties of PVC-Silica Composites using Different Catalysts Via Sol-Gel Process

1999 ◽  
Vol 576 ◽  
Author(s):  
Khan M. Asif ◽  
M.I. Sarwar ◽  
Z. Ahmad
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Sol Gel ◽  
Silica Network ◽  
Transparent Films ◽  
Sol Gel Process ◽  
Gel Technique ◽  
In Situ Generation ◽  
Scanning Electron

Novel micro-composites from Polyvinyl chloride (PVC) and silica were prepared using sol-gel technique. Different catalysts were used for the in-situ generation of silica network from tetraethylorthosilicate (TEOS) in the PVC matrix. Thin transparent films containing various proportions of silica in PVC were cast by the solvent elution technique. Mechanical properties of these films were studied. The results showed an increase in the value of Young's modulus and strain at rupture by the addition of small amount of silica in PVC. However, the stress at yields point and stress at rupture decreased with the addition of silica contents. Scanning electron microscopy (SEM-EDAX) studies were also performed on these samples.

Radial gradient-index glass prepared by the sol-gel process

1995 ◽  
Vol 30 (5) ◽  
pp. 543-548 ◽  
Author(s):  
Rui-Li Huang ◽  
Shen-Kang Ruan ◽  
Zhen-Chuan Kang ◽  
Mian-Zeng Su
Keyword(s):  
Sol Gel ◽  
Gradient Index ◽  
Radial Gradient ◽  
Sol Gel Process

Gradient-index AR film deposited by the sol–gel process

1982 ◽  
Vol 21 (2) ◽  
pp. 293 ◽  
Author(s):  
S. P. Mukherjee ◽  
W. H. Lowdermilk
Keyword(s):  
Sol Gel ◽  
Gradient Index ◽  
Sol Gel Process

Incorporation of Polyaniline Into a Silica Gel Via the Sol-Gel Technique

1990 ◽  
Vol 180 ◽  
Author(s):  
F. Nishida ◽  
B. Dunn ◽  
E.T. Knobbe ◽  
P.D. Fuqua ◽  
R.B. Kaner ◽  
...  
Keyword(s):  
Silica Gel ◽  
Conjugated Polymer ◽  
Sol Gel ◽  
Optical Quality ◽  
Emeraldine Base ◽  
Polar Solvents ◽  
Base Form ◽  
Sol Gel Process ◽  
Gel Technique ◽  
Good Optical Quality

ABSTRACTThe sol-gel process has been used to incorporate a conjugated polymer, polyaniline, in silica gel. The emeraldine base form of the polymer is partially solubility in aprotic polar solvents which are compatible with the sol. The effect of sol environment on the emeraldine base form of polyaniline was investigated. The soluble emeraldine base form is maintained at pH ≥ 2.4 enabling good optical quality gels to be synthesized. The type of alkoxysilane and the water ratio used in preparing the sol influence the solubility of the emeraldine base.

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