Reaction kinetics and mechanism of BaPbO 3 formation

M. C. Chang; J. M. Wu; S. Y. Cheng; San-Yuan Chen

doi:10.1016/S0254-0584(00)00208-X

Reaction kinetics and mechanism of BaPbO ₃ formation

M. C. Chang^*, J. M. Wu, S. Y. Cheng, San-Yuan Chen

^*Corresponding author for this work

National Chiao Tung University

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

9 Scopus citations

Abstract

The influence of starting materials on the formation of BaPbO ₃ is studied. The reaction kinetics of perovskite BaPbO ₃ phase formation depends greatly on the phase of lead oxide raw materials. Kinetics of BaPbO ₃ formation is analyzed by the Johnson-Mehl-Avrami model. The experimental results reveals that the reaction of BaCO ₃ -PbO ₂ raw materials has a reaction order of n = 5/2, and the reaction is controlled by diffusion. On the other hand, in the case of BaCO ₃ -PbO system, the reaction order n is equal to 1. The formation is controlled by the interface reaction. In the final stage of both systems, the reaction orders are the same of about 0.5. The phases left in the final stage are BaPbO ₃ and BaCO ₃ .

Original language	English
Pages (from-to)	57-62
Number of pages	6
Journal	Materials Chemistry and Physics
Volume	65
Issue number	1
DOIs	https://doi.org/10.1016/S0254-0584(00)00208-X
State	Published - 15 Jun 2000

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title = "Reaction kinetics and mechanism of BaPbO 3 formation",

abstract = " The influence of starting materials on the formation of BaPbO 3 is studied. The reaction kinetics of perovskite BaPbO 3 phase formation depends greatly on the phase of lead oxide raw materials. Kinetics of BaPbO 3 formation is analyzed by the Johnson-Mehl-Avrami model. The experimental results reveals that the reaction of BaCO 3 -PbO 2 raw materials has a reaction order of n = 5/2, and the reaction is controlled by diffusion. On the other hand, in the case of BaCO 3 -PbO system, the reaction order n is equal to 1. The formation is controlled by the interface reaction. In the final stage of both systems, the reaction orders are the same of about 0.5. The phases left in the final stage are BaPbO 3 and BaCO 3 . ",

author = "Chang, {M. C.} and Wu, {J. M.} and Cheng, {S. Y.} and San-Yuan Chen",

year = "2000",

month = jun,

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doi = "10.1016/S0254-0584(00)00208-X",

language = "English",

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pages = "57--62",

journal = "Materials Chemistry and Physics",

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TY - JOUR

T1 - Reaction kinetics and mechanism of BaPbO 3 formation

AU - Chang, M. C.

AU - Wu, J. M.

AU - Cheng, S. Y.

AU - Chen, San-Yuan

PY - 2000/6/15

Y1 - 2000/6/15

N2 - The influence of starting materials on the formation of BaPbO 3 is studied. The reaction kinetics of perovskite BaPbO 3 phase formation depends greatly on the phase of lead oxide raw materials. Kinetics of BaPbO 3 formation is analyzed by the Johnson-Mehl-Avrami model. The experimental results reveals that the reaction of BaCO 3 -PbO 2 raw materials has a reaction order of n = 5/2, and the reaction is controlled by diffusion. On the other hand, in the case of BaCO 3 -PbO system, the reaction order n is equal to 1. The formation is controlled by the interface reaction. In the final stage of both systems, the reaction orders are the same of about 0.5. The phases left in the final stage are BaPbO 3 and BaCO 3 .

AB - The influence of starting materials on the formation of BaPbO 3 is studied. The reaction kinetics of perovskite BaPbO 3 phase formation depends greatly on the phase of lead oxide raw materials. Kinetics of BaPbO 3 formation is analyzed by the Johnson-Mehl-Avrami model. The experimental results reveals that the reaction of BaCO 3 -PbO 2 raw materials has a reaction order of n = 5/2, and the reaction is controlled by diffusion. On the other hand, in the case of BaCO 3 -PbO system, the reaction order n is equal to 1. The formation is controlled by the interface reaction. In the final stage of both systems, the reaction orders are the same of about 0.5. The phases left in the final stage are BaPbO 3 and BaCO 3 .

UR - http://www.scopus.com/inward/record.url?scp=0033744166&partnerID=8YFLogxK

U2 - 10.1016/S0254-0584(00)00208-X

DO - 10.1016/S0254-0584(00)00208-X

M3 - Article

AN - SCOPUS:0033744166

VL - 65

SP - 57

EP - 62

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

SN - 0254-0584

IS - 1

ER -

Reaction kinetics and mechanism of BaPbO 3 formation

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Reaction kinetics and mechanism of BaPbO ₃ formation