Rare earth doped zinc oxide varistors
Patent
·
OSTI ID:321199
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- Assignee:
- Lockheed Martin Energy Research Corp., Oak Ridge, TN (United States)
- Patent Number(s):
- US 5,854,586/A/
- Application Number:
- PAN: 8-932,948
- OSTI ID:
- 321199
- Resource Relation:
- Other Information: PBD: 29 Dec 1998
- Country of Publication:
- United States
- Language:
- English
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