Control of litharge-massicot transformation by doping and mechanical activation

Tetsuhiko Isobe, Mamoru Senna

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

PbO (litharge) was doped with Ba2+ and Sr2+ up to 10 mol%. The doped samples were heterogeneous, containing Pb4+ and/or C03 2-. The tempearture of transformation, Ttr, into massicot increased on doping, whereas it decreased after mechanical treatment. Changes in Ttr are discussed in terms of the mobility of oxygen atoms. The apparent enthalpy of the phase transformation, ΔHtr was negatively correlated with the lattice distortion consequent on doping and grinding. The feasibility of controlling transformation kinetics by the concurrent effects of doping and lattice distortion is also discussed.

Original languageEnglish
Pages (from-to)29-40
Number of pages12
JournalReactivity of Solids
Volume8
Issue number1-2
DOIs
Publication statusPublished - 1990

Fingerprint

Chemical activation
Doping (additives)
activation
grinding
phase transformations
Enthalpy
oxygen atoms
Phase transitions
enthalpy
Oxygen
Atoms
Kinetics
kinetics

Cite this

Control of litharge-massicot transformation by doping and mechanical activation. / Isobe, Tetsuhiko; Senna, Mamoru.

In: Reactivity of Solids, Vol. 8, No. 1-2, 1990, p. 29-40.

Research output: Contribution to journalArticle

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