Polymorphic phase transformation of lead monoxide and its influence on lead zirconate titanate formation

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1990.tb06498.x· OSTI ID:6819472

Chen, S Y; Cheng, S Y; Wang, C M ^[1]

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1. Materials Research Lab., Industrial Technology Research Inst., Chutung, 31015 Hsinchu (TW)

The polymorphic phase transformation of PbO from massicot to litharge phase is easily produced by mechanical force. The transformation is relatively quick by wet ball-milling. The additions of TiO{sub 2} and ZrO{sub 2} tend to retard it. A second-order exponential relation is observed between the fractional conversion and the milling time for pure PbO, PbO-TiO{sub 2}, and PbO-ZrO{sub 2}-TiO{sub 2} systems with a rutile constituent. This exponential relation is changed into a first-order logarithmic relation when anatase instead of rutile is used. Although the PbO{sub {ital ss}} phase is observed irrespective of the phase of the PbO in the raw materials, this PbO{sub {ital ss}} peak is more obvious when massicot PbO or anatase TiO{sub 2} is used. The formation of PbO{sub {ital ss}} phase is also dependent on the reactivity of the ZrO{sub 2}, and its presence can affect the formation and piezoelectric properties of PZT ceramics.

• OSTI ID: 6819472
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 73:2; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300800 -- Direct Energy Conversion-- Miscellaneous Converters
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
CHALCOGENIDES
CONVERSION
ELECTRICITY
ENERGY CONVERSION
LEAD COMPOUNDS
LEAD OXIDES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PIEZOELECTRICITY
PZT
TITANATES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
ZIRCONATES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES