Structure of Polymeric PbTiO3 Gels |
| |
| Authors: | Sandwip K. Dey Kenton D. Budd David A. Payne |
| |
| Affiliation: | Department of Ceramic Engineering and Materials Research Laboratory. University of Illinois, Urbana, Illinois 61801 |
| |
| Abstract: | The structural features of PbTiO3 gels were found to be highly dependent on hydrolysis conditions. Gels formed from acid-catalyzed solutions were clear and rubbery, whereas base-catalyzed gels were translucent or cloudy with phase separation. Direct TEM observations determined that acid-catalyzed gels were fibrous in character and physically homogeneous, whereas base-catalyzed gels had a coarse texture. Analyses by EDX and SAD indicated that acidic gels were chemically homogeneous and microcrystalline, whereas basic gels were heterogeneous and amorphous. |
| |
| Keywords: | |
|
|
