Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1990-04-16
1992-01-07
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
501134, 501136, 423606, 423635, C04B 3500, C04B 3546
Patent
active
050791990
ABSTRACT:
A manufacturing method for dielectric ceramic compositions of lead-based perovskite containing lead magnesium tungstate [Pb(Mg.sub.1/2 W.sub.1/2)O.sub.3 ] as a component which is characterized in that magnesium tungstate powder [MgWO.sub.4 ] is used as a starting material instead of MgO and WO.sub.3 powder.
REFERENCES:
patent: 4450240 (1984-05-01), Miyamoto et al.
Yonezawa, New Low-Firing Materials for Multilayer Capacitors, Ferroelectrics, 1986, vol. 68, pp. 181-189.
Ochi Atsushi
Shirakata Masato
Takahashi Seiji
Utsumi Kazuaki
Dixon Jr. William R.
Green Anthony J.
NEC Corporation
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