A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC ORIENTED CERAMIC AND METHOD FOR MANUFACTURING SAME
There are provided a grain-oriented piezoelectric ceramic that is based on a potassium niobate compound containing at least Li and Na and can be produced using a known process for producing piezoelectric ceramics and can be oriented with a high degree of orientation in any intended direction and a method for producing this grain-oriented piezoelectric ceramic. The grain-oriented piezoelectric ceramic according to this invention has a perovskite structure based on a potassium niobate compound containing at least Li and Na. The aspect ratio of the ceramic particles constituting this grain-oriented piezoelectric ceramic is 5 or less. The grain-oriented piezoelectric ceramic has an axis oriented in the {100} direction of the perovskite structure. The degree of orientation as determined using the Lotgering method on the basis of an X-ray diffraction pattern of a cross-section taken in this direction is 0.30 or more.
PIEZOELECTRIC ORIENTED CERAMIC AND METHOD FOR MANUFACTURING SAME
There are provided a grain-oriented piezoelectric ceramic that is based on a potassium niobate compound containing at least Li and Na and can be produced using a known process for producing piezoelectric ceramics and can be oriented with a high degree of orientation in any intended direction and a method for producing this grain-oriented piezoelectric ceramic. The grain-oriented piezoelectric ceramic according to this invention has a perovskite structure based on a potassium niobate compound containing at least Li and Na. The aspect ratio of the ceramic particles constituting this grain-oriented piezoelectric ceramic is 5 or less. The grain-oriented piezoelectric ceramic has an axis oriented in the {100} direction of the perovskite structure. The degree of orientation as determined using the Lotgering method on the basis of an X-ray diffraction pattern of a cross-section taken in this direction is 0.30 or more.
PIEZOELECTRIC ORIENTED CERAMIC AND METHOD FOR MANUFACTURING SAME
ORIENTIERTE PIEZOELEKTRISCHE KERAMIK UND VERFAHREN ZUR HERSTELLUNG DAVON
CÉRAMIQUE ORIENTÉE PIÉZOÉLECTRIQUE ET SON PROCÉDÉ DE FABRICATION
MIWA YASUNARI (author) / KAWADA SHINICHIRO (author) / KIMURA MASAHIKO (author)
2016-10-05
Patent
Electronic Resource
English
| European Patent Office | 2016
| European Patent Office | 2016
| European Patent Office | 2016
CRYSTAL-ORIENTED PIEZOELECTRIC CERAMIC AND METHOD FOR MANUFACTURING THE SAME
| European Patent Office | 2015
Piezoelectric ceramic, method of manufacturing same, and piezoelectric ceramic speaker using same
| European Patent Office | 2015