Ceramic material, method for producing the same, and...

Details Ceramic material, method for producing the same, and... Ceramic material, method for producing the same, and...

2011-08-02

2011-08-02

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C257S347000, C252S06290R, C252S06290R, C501S134000

Reexamination Certificate

active

07990029

ABSTRACT:
A ceramic material includes lead zirconate titanate, which additionally contains Nd and Ni. For example, the ceramic material may have a composition according to the following formulae:in-line-formulae description="In-line Formulae" end="lead"?for y≦x/2: a PbO+(Pb1−3x/2+y□x/2−yNdx)((Zr1−zTiz)1−yNiy)O3in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?for y>x/2: a PbO+(Pb1−xNdx)((Zr1−zTiz)1−yNiy)O3−y+x/2⋄y−x/2,in-line-formulae description="In-line Formulae" end="tail"?where 0≦a<1, 0<x<1, 0<y<1, 0<z<1, a stands for an excess of PbO in the weigh-in, □ represents a Pb vacancy and ⋄ represents an O vacancy.

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