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PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ACTUATOR

TABATA SHUHEI / HIRAYAMA TAKESHI / SHIMURA GEN

In a piezoelectric ceramic composition including potassium sodium niobate, a transition temperature at which a phase transition between an orthorhombic crystal structure and a tetragonal crystal structure occurs lies in a temperature range of -20°C or higher and 60°C or lower. In the piezoelectric ceramic composition, αt/αo is 0.72 or more, where αo represents a coefficient of linear expansion determined when a crystal structure is orthorhombic in the temperature range, and αt represents a coefficient of linear expansion determined when a crystal structure is tetragonal in the temperature range.

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PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ACTUATOR

TABATA SHUHEI / HIRAYAMA TAKESHI / SHIMURA GEN

In a piezoelectric ceramic composition including potassium sodium niobate, a transition temperature at which a phase transition between an orthorhombic crystal structure and a tetragonal crystal structure occurs lies in a temperature range of -20°C or higher and 60°C or lower. In the piezoelectric ceramic composition, αt/αo is 0.72 or more, where αo represents a coefficient of linear expansion determined when a crystal structure is orthorhombic in the temperature range, and αt represents a coefficient of linear expansion determined when a crystal structure is tetragonal in the temperature range.

PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ACTUATOR

TABATA SHUHEI / HIRAYAMA TAKESHI / SHIMURA GEN

In a piezoelectric ceramic composition including potassium sodium niobate, a transition temperature at which a phase transition between an orthorhombic crystal structure and a tetragonal crystal structure occurs lies in a temperature range of -20°C or higher and 60°C or lower. In the piezoelectric ceramic composition, αt/αo is 0.72 or more, where αo represents a coefficient of linear expansion determined when a crystal structure is orthorhombic in the temperature range, and αt represents a coefficient of linear expansion determined when a crystal structure is tetragonal in the temperature range.

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Titel:

PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ACTUATOR

Weitere Titelangaben:

PIEZOELEKTRISCHE KERAMIKZUSAMMENSETZUNG UND PIEZOELEKTRISCHER AKTUATOR
COMPOSITION CÉRAMIQUE PIÉZOÉLECTRIQUE ET ACTIONNEUR PIÉZOÉLECTRIQUE

Beteiligte:

TABATA SHUHEI (Autor:in) / HIRAYAMA TAKESHI (Autor:in) / SHIMURA GEN (Autor:in)

Erscheinungsdatum:

08.05.2024

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: H10N / C04B Kalk , LIME

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