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.:
Date of Patent:
Feb. 07, 2023
Filed:
Dec. 04, 2020
Applicant:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, CN;
Inventors:
Assignee:
SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADEMY OF SCIENCES, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/497 (2006.01); C04B 35/626 (2006.01);
U.S. Cl.
CPC ...
C04B 35/497 (2013.01); C04B 35/6261 (2013.01); C04B 35/62655 (2013.01); C04B 35/62675 (2013.01); C04B 2235/77 (2013.01);
Abstract
The present application discloses a dense lead metaniobate piezoelectric ceramic and a preparation method therefor. The chemical composition of the lead metaniobate piezoelectric ceramic is PbNbO, wherein x represents the Pb vacancy concentration of A sites in a tungsten bronze crystal structure, and x is greater than 0.00 and smaller than or equal to 0.20.