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Rare earth doped zinc oxide varistors

Patent ·
OSTI ID:872067
 [1];  [2];  [2];  [3];  [2];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
  3. Medina, OH
+ Show Author Affiliations
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.
Research Organization:
LOCKHEED MARTIN ENERGY RES COR
DOE Contract Number:
AC05-96OR22464
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
Patent Number(s):
US 5854586
OSTI ID:
872067
Country of Publication:
United States
Language:
English

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Related Subjects

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0-0
0-2
00005-0
01
02
05
05-0
2-4
5-4
balance
bi-free
cao
ceramic
ceramic composition
composition
composition including
doped
doped zinc
earth
earth element
element
essentially
expressed
homogeneous
including
mgo
mno
nominal
oxide
oxide varistor
oxide varistors
rare
rare earth
sintered
sno
varistor
varistors
weight
zinc
zinc oxide
zno