Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PIEZOELECTRIC CERAMIC AND PRODUCTION PROCESS THEREFOR
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic that has an excellent insulation property even for the case of a calcination under a reducing atmosphere, and to provide a production process therefor.SOLUTION: Provided is: a piezoelectric ceramic containing a main phase 1 ceramic grain having a tungsten bronze structure, and a secondary phase 2 having Mn, Si and O at the grain boundary of main phase 1 ceramic grain; and a piezoelectric ceramic made from a group of grains in which the aspect ratio of the main phase ceramic grain is 2.8 or more, and the average grain size is 3.4 μm or less as well as the deviation of grain size is 2.4 μm or less.SELECTED DRAWING: Figure 1
【課題】還元雰囲気下で焼成した場合であっても絶縁性に優れた圧電セラミックス及びその製造方法の提供。【解決手段】タングステンブロンズ構造をもつ主相１のセラミックス粒子と、主相１のセラミックス粒子の粒界にＭｎ３＋、Ｓｉ及びＯを有する二次相２と、を含有する圧電セラミックス。主相のセラミックス粒子のアスペクト比が２．８以上であり、平均粒子径が３．４μｍ以下且つ粒子径の偏差が２．４μｍ以下の粒子群からなる圧電セラミックス。【選択図】図１
PIEZOELECTRIC CERAMIC AND PRODUCTION PROCESS THEREFOR
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic that has an excellent insulation property even for the case of a calcination under a reducing atmosphere, and to provide a production process therefor.SOLUTION: Provided is: a piezoelectric ceramic containing a main phase 1 ceramic grain having a tungsten bronze structure, and a secondary phase 2 having Mn, Si and O at the grain boundary of main phase 1 ceramic grain; and a piezoelectric ceramic made from a group of grains in which the aspect ratio of the main phase ceramic grain is 2.8 or more, and the average grain size is 3.4 μm or less as well as the deviation of grain size is 2.4 μm or less.SELECTED DRAWING: Figure 1
【課題】還元雰囲気下で焼成した場合であっても絶縁性に優れた圧電セラミックス及びその製造方法の提供。【解決手段】タングステンブロンズ構造をもつ主相１のセラミックス粒子と、主相１のセラミックス粒子の粒界にＭｎ３＋、Ｓｉ及びＯを有する二次相２と、を含有する圧電セラミックス。主相のセラミックス粒子のアスペクト比が２．８以上であり、平均粒子径が３．４μｍ以下且つ粒子径の偏差が２．４μｍ以下の粒子群からなる圧電セラミックス。【選択図】図１
PIEZOELECTRIC CERAMIC AND PRODUCTION PROCESS THEREFOR
圧電セラミックス及びその製造方法
HARADA TOMOHIRO (Autor:in) / KOBAYASHI KEISUKE (Autor:in) / TOSHIDA YUTAKA (Autor:in)
28.04.2016
Patent
Elektronische Ressource
Japanisch
PIEZOELECTRIC ORIENTED CERAMIC AND PRODUCTION METHOD THEREFOR
| Europäisches Patentamt | 2022
PIEZOELECTRIC ORIENTED CERAMIC AND PRODUCTION METHOD THEREFOR
Europäisches Patentamt | 2016
PIEZOELECTRIC CERAMIC, CERAMIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD FOR PIEZOELECTRIC CERAMIC
| Europäisches Patentamt | 2021
PIEZOELECTRIC CERAMIC, CERAMIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD FOR PIEZOELECTRIC CERAMIC
| Europäisches Patentamt | 2020
PIEZOELECTRIC CERAMIC, CERAMIC ELECTRONIC COMPONENT, AND PRODUCTION METHOD FOR PIEZOELECTRIC CERAMIC
| Europäisches Patentamt | 2021