Na2CO3 doping effect on ZnO-Pr6O 11-Co3O4 ceramic varistor properties

Li Then Mei; Hsing I. Hsiang; Chi Shiung Hsi; Fu Su Yen

doi:10.1016/j.jallcom.2013.01.047

Na₂CO₃ doping effect on ZnO-Pr₆O ₁₁-Co₃O₄ ceramic varistor properties

Li Then Mei, Hsing I. Hsiang, Chi Shiung Hsi, Fu Su Yen

Department of Resources Engineering

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

14 Citations (Scopus)

Abstract

Suitable Na₂CO₃ doping can enhance the varistor properties of ZnO-Pr₆O₁₁-Co₃O₄ ceramics. X-ray diffractometer (XRD), thermo-gravimetry analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to investigate the Na⁺ ion addition effects on the crystal phases, microstructure development and varistor properties of ZnO-Pr₆O ₁₁-Co₃O₄ ceramics. The results imply that sodium ions will dissolve into praseodymium oxide and promote oxygen vacancy formation in praseodymium oxide. This phenomenon will enhance the oxygen diffusion and formation of zinc vacancies at the grain boundary. The varistor characteristics of ZnO-Pr₆O₁₁-Co₃O₄ ceramics can therefore be improved by adding Na₂CO₃.

Original language	English
Pages (from-to)	84-90
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	558
DOIs	https://doi.org/10.1016/j.jallcom.2013.01.047
Publication status	Published - 2013 May 5

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2013.01.047

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title = "Na2CO3 doping effect on ZnO-Pr6O 11-Co3O4 ceramic varistor properties",

abstract = "Suitable Na2CO3 doping can enhance the varistor properties of ZnO-Pr6O11-Co3O4 ceramics. X-ray diffractometer (XRD), thermo-gravimetry analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to investigate the Na+ ion addition effects on the crystal phases, microstructure development and varistor properties of ZnO-Pr6O 11-Co3O4 ceramics. The results imply that sodium ions will dissolve into praseodymium oxide and promote oxygen vacancy formation in praseodymium oxide. This phenomenon will enhance the oxygen diffusion and formation of zinc vacancies at the grain boundary. The varistor characteristics of ZnO-Pr6O11-Co3O4 ceramics can therefore be improved by adding Na2CO3.",

author = "Mei, {Li Then} and Hsiang, {Hsing I.} and Hsi, {Chi Shiung} and Yen, {Fu Su}",

note = "Funding Information: This work was supported by the National Science Council of the Republic of China under Contract NSC98-2221-E-006-077-MY3. ",

year = "2013",

month = may,

day = "5",

doi = "10.1016/j.jallcom.2013.01.047",

language = "English",

volume = "558",

pages = "84--90",

journal = "Journal of the Less-Common Metals",

issn = "0925-8388",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Na2CO3 doping effect on ZnO-Pr6O 11-Co3O4 ceramic varistor properties

AU - Mei, Li Then

AU - Hsiang, Hsing I.

AU - Hsi, Chi Shiung

AU - Yen, Fu Su

N1 - Funding Information: This work was supported by the National Science Council of the Republic of China under Contract NSC98-2221-E-006-077-MY3.

PY - 2013/5/5

Y1 - 2013/5/5

N2 - Suitable Na2CO3 doping can enhance the varistor properties of ZnO-Pr6O11-Co3O4 ceramics. X-ray diffractometer (XRD), thermo-gravimetry analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to investigate the Na+ ion addition effects on the crystal phases, microstructure development and varistor properties of ZnO-Pr6O 11-Co3O4 ceramics. The results imply that sodium ions will dissolve into praseodymium oxide and promote oxygen vacancy formation in praseodymium oxide. This phenomenon will enhance the oxygen diffusion and formation of zinc vacancies at the grain boundary. The varistor characteristics of ZnO-Pr6O11-Co3O4 ceramics can therefore be improved by adding Na2CO3.

AB - Suitable Na2CO3 doping can enhance the varistor properties of ZnO-Pr6O11-Co3O4 ceramics. X-ray diffractometer (XRD), thermo-gravimetry analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to investigate the Na+ ion addition effects on the crystal phases, microstructure development and varistor properties of ZnO-Pr6O 11-Co3O4 ceramics. The results imply that sodium ions will dissolve into praseodymium oxide and promote oxygen vacancy formation in praseodymium oxide. This phenomenon will enhance the oxygen diffusion and formation of zinc vacancies at the grain boundary. The varistor characteristics of ZnO-Pr6O11-Co3O4 ceramics can therefore be improved by adding Na2CO3.

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Na₂CO₃ doping effect on ZnO-Pr₆O ₁₁-Co₃O₄ ceramic varistor properties

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