Fabrication of ZnO electroceramics by reaction bonding

Enrique Rocha-Rangel; Octavio Martínez-Urgell; Carlos Gómez-Yánez

Fabrication of ZnO electroceramics by reaction bonding

Enrique Rocha-Rangel, Octavio Martínez-Urgell, Carlos Gómez-Yánez

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

Abstract

ZnO ceramics doped with small amounts of Bi₂O₃, CoO, MnO, Sb₂O₃ and Cr₂O₃ offer a great potential as electroceramic materials to be used as protectors to prevent electric surges. In the present communication, the reaction bonded alumina oxide (RBAO) technique is adapted for the production of ZnO-based ceramics by the reaction bonding zinc oxide (RBZnO) process with the idea of achieving the advantages of the RBAO process. Because Zn oxidation occurs between 330°C and 468°C, slow heating rates before the Zn melting point (419°C) is very important in order to obtain the desired ceramic. The need for a fine microstructure of the matrix with many grain boundaries is discussed.

Original language	English
Pages (from-to)	211-213
Number of pages	3
Journal	Journal of Ceramic Processing Research
Volume	7
Issue number	3
State	Published - 2006
Externally published	Yes

Keywords

Milling
Powders-solid state reaction
Sintering, ZnO
Varistors

Cite this

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title = "Fabrication of ZnO electroceramics by reaction bonding",

abstract = "ZnO ceramics doped with small amounts of Bi2O3, CoO, MnO, Sb2O3 and Cr2O3 offer a great potential as electroceramic materials to be used as protectors to prevent electric surges. In the present communication, the reaction bonded alumina oxide (RBAO) technique is adapted for the production of ZnO-based ceramics by the reaction bonding zinc oxide (RBZnO) process with the idea of achieving the advantages of the RBAO process. Because Zn oxidation occurs between 330°C and 468°C, slow heating rates before the Zn melting point (419°C) is very important in order to obtain the desired ceramic. The need for a fine microstructure of the matrix with many grain boundaries is discussed.",

keywords = "Milling, Powders-solid state reaction, Sintering, ZnO, Varistors",

author = "Enrique Rocha-Rangel and Octavio Mart{\'i}nez-Urgell and Carlos G{\'o}mez-Y{\'a}nez",

year = "2006",

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journal = "Journal of Ceramic Processing Research",

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T1 - Fabrication of ZnO electroceramics by reaction bonding

AU - Rocha-Rangel, Enrique

AU - Martínez-Urgell, Octavio

AU - Gómez-Yánez, Carlos

PY - 2006

Y1 - 2006

N2 - ZnO ceramics doped with small amounts of Bi2O3, CoO, MnO, Sb2O3 and Cr2O3 offer a great potential as electroceramic materials to be used as protectors to prevent electric surges. In the present communication, the reaction bonded alumina oxide (RBAO) technique is adapted for the production of ZnO-based ceramics by the reaction bonding zinc oxide (RBZnO) process with the idea of achieving the advantages of the RBAO process. Because Zn oxidation occurs between 330°C and 468°C, slow heating rates before the Zn melting point (419°C) is very important in order to obtain the desired ceramic. The need for a fine microstructure of the matrix with many grain boundaries is discussed.

AB - ZnO ceramics doped with small amounts of Bi2O3, CoO, MnO, Sb2O3 and Cr2O3 offer a great potential as electroceramic materials to be used as protectors to prevent electric surges. In the present communication, the reaction bonded alumina oxide (RBAO) technique is adapted for the production of ZnO-based ceramics by the reaction bonding zinc oxide (RBZnO) process with the idea of achieving the advantages of the RBAO process. Because Zn oxidation occurs between 330°C and 468°C, slow heating rates before the Zn melting point (419°C) is very important in order to obtain the desired ceramic. The need for a fine microstructure of the matrix with many grain boundaries is discussed.

KW - Milling

KW - Powders-solid state reaction

KW - Sintering, ZnO

KW - Varistors

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M3 - Artículo

SN - 1229-9162

VL - 7

SP - 211

EP - 213

JO - Journal of Ceramic Processing Research

JF - Journal of Ceramic Processing Research

IS - 3

ER -

Fabrication of ZnO electroceramics by reaction bonding

Abstract

Keywords

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