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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8021568 B1

PDFFull Text
Expired
Date of Patent:
Sep. 20, 2011

Filed:

Dec. 18, 2006

Nickel-molybdenum-doped lead zirconate titanate, method for the production of a piezoceramic component using said lead zirconate titanate, and use of the piezoceramic component

Applicants:

Francois Bamiere, Mannheim, DE;

Katrin Benkert, München, DE;

Stefan Denneler, München, DE;

Morgane Radanielina, Strasbourg, FR;

Carsten Schuh, Baldham, DE;

Inventors:

Francois Bamiere, Mannheim, DE;

Katrin Benkert, München, DE;

Stefan Denneler, München, DE;

Morgane Radanielina, Strasbourg, FR;

Carsten Schuh, Baldham, DE;

Assignee:

Siemens Aktiengesellschaft, Munich, DE;

Attorney:

King & Spalding L.L.P.

Primary Examiner:

Carol M Koslow

Int. Cl.
CPC ...
C04B 35/491 (2006.01); H01L 41/24 (2006.01); H01L 41/187 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piezoceramic composition of a calculated empirical formula PbREAE[ZrTi(NiMo)]O, wherein RE represents a rare earth metal having a rare earth metal content b, AE represents an alkaline earth metal having an alkaline earth metal content c, nickel is provided with a nickel content n.z, and molybdenum is provided with a molybdenum content m.z. Furthermore, the following correlations apply: a<1; 0=b=0.15; 0=c=0.5; n>0; m>0; 0.1=n/m=5; x>0; y>0; z>0, and x+y+z=1. In a method for producing a piezoceramic component a) a green ceramic member containing the piezoceramic composition is supplied; and b) the green member is subjected to a thermal treatment such that the piezoceramic material of the component is produced from the piezoceramic composition. The thermal treatment encompasses calcining and/or sintering of the piezoceramic composition. The piezoceramic composition is compressed below 1000° C., thus allowing metals melting at a lower temperature to be sintered along with the piezoceramic composition.

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Bamiere, Francois. (2011). Nickel-molybdenum-doped lead zirconate titanate, method for the production of a piezoceramic component using said lead zirconate titanate, and use of the piezoceramic component (U.S. Patent No. 8021568). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8021568

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