Patent · US Active

Ceramic material, method for producing the same, and electro-ceramic component comprising the ceramic material

US7990029B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

EPCOS AG · DE

Inventors

Michael Schossmann · Hall in Tirol, AT
Georg Kuegerl · Eibiswald, AT
Alexander Glazunov · Freiland bei Deutschlandsberg, AT

Key dates

Filing date	Mar 3, 2010
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Mar 3, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/10
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

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:for y≦x/2: a PbO+(Pb1−3x/2+y□x/2−yNdx)((Zr1−zTiz)1−yNiy)O3 for y>x/2: a PbO+(Pb1−xNdx)((Zr1−zTiz)1−yNiy)O3−y+x/2⋄y−x/2, 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.