Preparing Microcomposite Powders Doped with Antimony Dioxide and Properties of Thick Films Based on Those Powders

The goal of the work reported here was to develop a method of applying glass nanolayers of variable thickness to Sn^sub 0.9^Sb^sub 0.1^O^sub 2^ particles and to investigate how this affects the electrical properties of thick-film resistors. We prepared Sn^sub 0.9^Sb^sub 0.1^O^sub 2^ powders by calci...

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Published inPowder metallurgy and metal ceramics Vol. 39; no. 11-12; pp. 528 - 531
Main Author Rud', Boris M
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.11.2000
Subjects
Antimony
Aqueous solutions
Electrical resistivity
Glass
Heat treatment
Nanocomposites
Nanomaterials
Nanostructure
Thick films
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Summary:The goal of the work reported here was to develop a method of applying glass nanolayers of variable thickness to Sn^sub 0.9^Sb^sub 0.1^O^sub 2^ particles and to investigate how this affects the electrical properties of thick-film resistors. We prepared Sn^sub 0.9^Sb^sub 0.1^O^sub 2^ powders by calcinating coprecipitated tin and antimony hydroxides. Thin layers of aluminum, barium, and boron compounds were then precipitated from aqueous solutions onto powder particles. Nanolayers of glass in the BaO -- Al^sub 2^O^sub 3^ -- B^sub 2^O^sub 3^ system were obtained by dissolution followed by heat treatment. Resistive thick films made from such microcomposite powders have a higher resistivity than do those prepared by traditional methods and that resistivity changes little after repeated heat treatments. The thermal coefficient of electrical resistance decreases with increasing thickness of the glassy layer on the surface of the conducting particles.[PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1068-1302
1573-9066
DOI:10.1023/A:1011355525792