Rare earth doped zinc oxide varistors
Abstract
A varistor includes a Bi-free, essentially homogeneous sintered body of a ceramic composition including, expressed as nominal weight %, 0.2--4.0% oxide of at least one rare earth element, 0.5--4.0% Co{sub 3}O{sub 4}, 0.05--0.4% K{sub 2}O, 0.05--0.2% Cr{sub 2}O{sub 3}, 0--0.2% CaO, 0.00005--0.01% Al{sub 2}O{sub 3}, 0--2% MnO, 0--0.05% MgO, 0--0.5% TiO{sub 3}, 0--0.2% SnO{sub 2}, 0--0.02% B{sub 2}O{sub 3}, balance ZnO. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 321199
- Patent Number(s):
- 5854586
- Application Number:
- PAN: 8-932,948
- Assignee:
- Lockheed Martin Energy Research Corp., Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 29 Dec 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; SINTERING; CHEMICAL COMPOSITION; ZINC OXIDES; RARE EARTH COMPOUNDS; COBALT OXIDES; POTASSIUM OXIDES; CHROMIUM OXIDES; CALCIUM OXIDES; ALUMINIUM OXIDES; MANGANESE OXIDES; MAGNESIUM OXIDES; TITANIUM OXIDES; TIN OXIDES; BORON OXIDES; RESISTORS
Citation Formats
McMillan, A D, Modine, F A, Lauf, R J, Alim, M A, Mahan, G D, and Bartkowiak, M. Rare earth doped zinc oxide varistors. United States: N. p., 1998.
Web.
McMillan, A D, Modine, F A, Lauf, R J, Alim, M A, Mahan, G D, & Bartkowiak, M. Rare earth doped zinc oxide varistors. United States.
McMillan, A D, Modine, F A, Lauf, R J, Alim, M A, Mahan, G D, and Bartkowiak, M. Tue .
"Rare earth doped zinc oxide varistors". United States.
@article{osti_321199,
title = {Rare earth doped zinc oxide varistors},
author = {McMillan, A D and Modine, F A and Lauf, R J and Alim, M A and Mahan, G D and Bartkowiak, M},
abstractNote = {A varistor includes a Bi-free, essentially homogeneous sintered body of a ceramic composition including, expressed as nominal weight %, 0.2--4.0% oxide of at least one rare earth element, 0.5--4.0% Co{sub 3}O{sub 4}, 0.05--0.4% K{sub 2}O, 0.05--0.2% Cr{sub 2}O{sub 3}, 0--0.2% CaO, 0.00005--0.01% Al{sub 2}O{sub 3}, 0--2% MnO, 0--0.05% MgO, 0--0.5% TiO{sub 3}, 0--0.2% SnO{sub 2}, 0--0.02% B{sub 2}O{sub 3}, balance ZnO. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {12}
}
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