Control of litharge-massicot transformation by doping and mechanical activation

Tetsuhiko Isobe; Mamoru Senna

doi:10.1016/0168-7336(90)80005-5

Control of litharge-massicot transformation by doping and mechanical activation

Tetsuhiko Isobe, Mamoru Senna

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

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, T_tr, into massicot increased on doping, whereas it decreased after mechanical treatment. Changes in T_tr are discussed in terms of the mobility of oxygen atoms. The apparent enthalpy of the phase transformation, ΔH_tr 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 language	English
Pages (from-to)	29-40
Number of pages	12
Journal	Reactivity of Solids
Volume	8
Issue number	1-2
DOIs	https://doi.org/10.1016/0168-7336(90)80005-5
Publication status	Published - 1990 Jun

ASJC Scopus subject areas

Engineering(all)

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title = "Control of litharge-massicot transformation by doping and mechanical activation",

abstract = "PbO (litharge) was doped with Ba2+ and Sr2+ up to 10 mol%. The doped samples were heterogeneous, containing Pb4+ and/or C032-. 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.",

author = "Tetsuhiko Isobe and Mamoru Senna",

year = "1990",

month = jun,

doi = "10.1016/0168-7336(90)80005-5",

language = "English",

volume = "8",

pages = "29--40",

journal = "Solid State Ionics",

issn = "0167-2738",

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number = "1-2",

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T1 - Control of litharge-massicot transformation by doping and mechanical activation

AU - Isobe, Tetsuhiko

AU - Senna, Mamoru

PY - 1990/6

Y1 - 1990/6

N2 - PbO (litharge) was doped with Ba2+ and Sr2+ up to 10 mol%. The doped samples were heterogeneous, containing Pb4+ and/or C032-. 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.

AB - PbO (litharge) was doped with Ba2+ and Sr2+ up to 10 mol%. The doped samples were heterogeneous, containing Pb4+ and/or C032-. 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.

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EP - 40

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-2

ER -

Control of litharge-massicot transformation by doping and mechanical activation

Abstract

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