TY - JOUR
T1 - Microstructural characterization of sol-gel derived lead titanate deposited on silica
AU - Schwartz, Joseph M.
AU - Falter Francis, Lorraine
AU - Schmidt, Lanny D.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - The microstructural evolution of lead titanate prepared by a sol-gel method was examined using transmission electron microscopy (TEM) following treatments in air at progressively higher temperatures. TEM specimens were prepared by spin coating a film or dispersing particles onto specimen grids coated with SiO2 or SiO2 with a barrier layer. The effects of different barrier materials, thermal treatment conditions, and the addition of platinum particles were examined. Lead titanate formed crystalline perovskite at ≈ 550-600°C on air support materials examined. On SiO2 supports, the pyrochlore phase formed at lower temperatures and converted partially to perovskite at higher temperatures. Barrier layers of TiO2 , Al2O3 and polyimide prevented pyrochlore formation.
AB - The microstructural evolution of lead titanate prepared by a sol-gel method was examined using transmission electron microscopy (TEM) following treatments in air at progressively higher temperatures. TEM specimens were prepared by spin coating a film or dispersing particles onto specimen grids coated with SiO2 or SiO2 with a barrier layer. The effects of different barrier materials, thermal treatment conditions, and the addition of platinum particles were examined. Lead titanate formed crystalline perovskite at ≈ 550-600°C on air support materials examined. On SiO2 supports, the pyrochlore phase formed at lower temperatures and converted partially to perovskite at higher temperatures. Barrier layers of TiO2 , Al2O3 and polyimide prevented pyrochlore formation.
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U2 - 10.1557/proc-310-281
DO - 10.1557/proc-310-281
M3 - Conference article
AN - SCOPUS:0027853419
SN - 0272-9172
VL - 310
SP - 281
EP - 286
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
T2 - Proceedings of the 1993 Spring Meeting of the Materials Research Society
Y2 - 12 April 1993 through 16 April 1993
ER -