Abstract
Ultra-low expansion TiO2/SiO2 glasses were prepared by the sol-gel method. Their microstructures were examined using optical microscopy and transmission electron microscopy with energy dispersive spectroscopy (TEM/EDS). A variety of macro-, micro- and nano-defects were observed and are described, and these are related to the sol/gel processing parameters. However, the intrinsic microstructure of the glasses was found to be homogeneous, amorphous and, in general, comparable to glasses prepared by high temperature flame hydrolysis techniques. This observation is significant because these gels were diphasic mixtures of TiO2 and SiO2 colloidal species initially and, further, because their sintering was completed below the liquidus temperature.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 50-57 |
| Number of pages | 8 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 125 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Nov 1 1990 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
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Microstructure of sol-gel processed TiO2/SiO2 glasses. / Breval, Else; Deng, Zaide; Pantano, Carlo G.
In: Journal of Non-Crystalline Solids, Vol. 125, No. 1-2, 01.11.1990, p. 50-57.Research output: Contribution to journal › Article
TY - JOUR
T1 - Microstructure of sol-gel processed TiO2/SiO2 glasses
AU - Breval, Else
AU - Deng, Zaide
AU - Pantano, Carlo G.
PY - 1990/11/1
Y1 - 1990/11/1
N2 - Ultra-low expansion TiO2/SiO2 glasses were prepared by the sol-gel method. Their microstructures were examined using optical microscopy and transmission electron microscopy with energy dispersive spectroscopy (TEM/EDS). A variety of macro-, micro- and nano-defects were observed and are described, and these are related to the sol/gel processing parameters. However, the intrinsic microstructure of the glasses was found to be homogeneous, amorphous and, in general, comparable to glasses prepared by high temperature flame hydrolysis techniques. This observation is significant because these gels were diphasic mixtures of TiO2 and SiO2 colloidal species initially and, further, because their sintering was completed below the liquidus temperature.
AB - Ultra-low expansion TiO2/SiO2 glasses were prepared by the sol-gel method. Their microstructures were examined using optical microscopy and transmission electron microscopy with energy dispersive spectroscopy (TEM/EDS). A variety of macro-, micro- and nano-defects were observed and are described, and these are related to the sol/gel processing parameters. However, the intrinsic microstructure of the glasses was found to be homogeneous, amorphous and, in general, comparable to glasses prepared by high temperature flame hydrolysis techniques. This observation is significant because these gels were diphasic mixtures of TiO2 and SiO2 colloidal species initially and, further, because their sintering was completed below the liquidus temperature.
UR - http://www.scopus.com/inward/record.url?scp=0025519629&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025519629&partnerID=8YFLogxK
U2 - 10.1016/0022-3093(90)90322-D
DO - 10.1016/0022-3093(90)90322-D
M3 - Article
AN - SCOPUS:0025519629
VL - 125
SP - 50
EP - 57
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
IS - 1-2
ER -