PIEZOELECTRIC CERAMIC SINTERED BODY, METHOD FOR MANUFACTURING PIEZOELECTRIC CERAMIC SINTERED BODY, AND ELECTRONIC DEVICE

The present invention relates to a piezoelectric ceramic sintered body, a method for manufacturing a piezoelectric ceramic sintered body, and an electronic device and, more specifically, to: a piezoelectric ceramic sintered body to be used in an electronic device such as a piezoelectric speaker; a m...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, Yu Hyeong, KIM, Tae Youn, KIM, Soo Chan, PARK, Sung Chol, JUNG, Jun Ho, JEONG, In Seob
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	The present invention relates to a piezoelectric ceramic sintered body, a method for manufacturing a piezoelectric ceramic sintered body, and an electronic device and, more specifically, to: a piezoelectric ceramic sintered body to be used in an electronic device such as a piezoelectric speaker; a method for manufacturing a piezoelectric ceramic sintered body; and an electronic device using the same. According to an embodiment of the present invention, the piezoelectric ceramic sintered body is formed by sintering a piezoelectric ceramic composition, which comprises: an orientation material composition formed from a piezoelectric material having a perovskite crystal structure; and a seed composition distributed in the orientation material composition and formed from an oxide having general formula of ABO3 (A is a divalent metal atom and B is a tetravalent metal element). La présente invention concerne un corps fritté en céramique piézoélectrique, un procédé de fabrication d'un corps fritté en céramique piézoélectrique et un dispositif électronique, et plus précisément : un corps fritté en céramique piézoélectrique destiné à être utilisé dans un dispositif électronique tel qu'un haut-parleur piézoélectrique; un procédé de fabrication d'un corps fritté en céramique piézoélectrique; et un dispositif électronique l'utilisant. Selon un mode de réalisation de la présente invention, le corps fritté en céramique piézoélectrique est formé par frittage d'une composition de céramique piézoélectrique, qui comprend : une composition de matériau d'orientation formée à partir d'un matériau piézoélectrique présentant une structure cristalline pérovskite; et une composition de germe distribuée dans la composition de matériau d'orientation et formée à partir d'un oxyde ayant la formule générale ABO3 (A étant un atome de métal divalent et B étant un élément métallique tétravalent). 본 발명은 압전 세라믹 소결체, 압전 세라믹 소결체의 제조 방법 및 전자기기에 관한 것으로서, 보다 상세하게는 압전 스피커 등의 전자기기에 사용되는 압전 세라믹 소결체, 압전 세라믹 소결체의 제조 방법 및 이를 이용하는 전자기기에 관한 것이다. 본 발명의 실시 예에 따른 압전 세라믹 소결체는 압전 세라믹 조성물을 소결하여 형성되는 압전 세라믹 소결체로서, 상기 압전 세라믹 조성물은, 페로브스카이트(perovskite) 결정 구조를 가지는 압전 물질로 형성되는 배향 원료 조성물; 및 상기 배향 원료 조성물 내에 분포하며, ABO3(A는 2가의 금속 원소, B는 4가의 금속 원소)의 일반식을 가지는 산화물로 형성되는 시드 조성물;을 포함한다.