Invention Grant
US07939007B2 Ceramics based on lanthanum-doped barium titanate, method of preparation and uses
有权
基于镧掺杂钛酸钡的陶瓷，其制备方法和用途
- Patent Title: Ceramics based on lanthanum-doped barium titanate, method of preparation and uses
- Patent Title (中): 基于镧掺杂钛酸钡的陶瓷，其制备方法和用途
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Application No.: US12226420Application Date: 2007-04-18
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Publication No.: US07939007B2Publication Date: 2011-05-10
- Inventor: Sophie Guillemet , Madona Boulos , Bernard Durand , Thierry Lebey , Quang Nguyen
- Applicant: Sophie Guillemet , Madona Boulos , Bernard Durand , Thierry Lebey , Quang Nguyen
- Applicant Address: FR Paris FR Toulouse
- Assignee: Centre National de la Recherche Scientifique (CNRS),Universite Paul Sabatier Toulouse III
- Current Assignee: Centre National de la Recherche Scientifique (CNRS),Universite Paul Sabatier Toulouse III
- Current Assignee Address: FR Paris FR Toulouse
- Agency: Foley & Lardner LLP
- Priority: FR0603414 20060419
- International Application: PCT/EP2007/053804 WO 20070418
- International Announcement: WO2007/118897 WO 20071025
- Main IPC: C04B35/468
- IPC: C04B35/468
Abstract:
The present invention relates to a method of preparing ceramics based on lanthanum-doped barium titanate, which comprises the following steps: (a) flash sintering of lanthanum-doped barium titanate powders; and (b) heat treatment of the material thus obtained, in an air atmosphere or in an oxidising atmosphere. The invention also relates to ceramics based on lanthanum-doped barium titanate, possessing a very high real part of the relative dielectric permittivity, and to their use for obtaining capacitors of high capacitance and high capacitance per unit volume for high-voltage withstand capability.
Public/Granted literature
- US20100027191A1 Ceramics Based on Lanthanum-Doped Barium Titanate, Method of Preparation and Uses Public/Granted day:2010-02-04
Information query
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