Anisotropic grain growth of ZnO grain in the varistor system ZnO-Bi sub 2 O sub 3 -MnO-TiO sub 2

Journal Article · Tue Nov 01 00:00:00 EST 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00288.x· OSTI ID:5942532

Sung, Gun Yong; Kim, Chong Hee ^[1]

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1. Korea Advanced Institute of Science and Technology, Seoul (Korea)

From the analysis of selected-area electron diffraction patterns through transmission electron microscopy, the crystallographic orientation of anisotropic ZnO grain growth by the addition of TiO{sub 2} to the varistor system ZnO-Bi{sub 2}O{sub 3}-MnO was determined to be the (10{anti 1}0) and ({anti 2}110) directions. The behavior of anisotropic grain growth was interpreted by the epitaxial growth of prism planes (resulting from the favorable atomic arrangement on these planes compared with other planes) and the increase in reactivity of the Bi-rich liquid phase toward the ZnO grain by the addition of TiO{sub 2}.

• OSTI ID: 5942532
• Journal Information: Advanced Ceramic Materials; (USA), Vol. 3:6; ISSN 0883-5551
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ZINC OXIDES
GRAIN GROWTH
BISMUTH OXIDES
ELECTRON DIFFRACTION
EXPERIMENTAL DATA
MANGANESE OXIDES
SEMICONDUCTOR RESISTORS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
BISMUTH COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
DATA
DIFFRACTION
ELECTRICAL EQUIPMENT
ELECTRON MICROSCOPY
EQUIPMENT
INFORMATION
MANGANESE COMPOUNDS
MICROSCOPY
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RESISTORS
SCATTERING
SEMICONDUCTOR DEVICES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZINC COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies