Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1989-11-30
1991-07-16
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
501134, 501135, 501136, 501138, 501139, C04B 3546
Patent
active
050325582
ABSTRACT:
The invention relates to new ceramic electrostrictive compositions having superior electrical properties, a process for the preparation of the new electrostrictive compositions and applications for the new compositions. Specifically, a solid solution composition of lead magnesium niobate-lead titanate - (barium titanate or stronium titanate) has exhibited desirable electrostrictive properties. This composition shows a diminished dependence of dielectric constant on temperature.
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Bailey Alex E.
Ritter Andrew P.
Sutherland Audrey E.
Winzer Stephen R.
Bell Mark L.
Chin Gay
Green Anthony J.
Martin Marietta Corporation
Mylius Herbert W.
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