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A platform for research: civil engineering, architecture and urbanism
PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ACTUATOR
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
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
PIEZOELEKTRISCHE KERAMIKZUSAMMENSETZUNG UND PIEZOELEKTRISCHER AKTUATOR
COMPOSITION CÉRAMIQUE PIÉZOÉLECTRIQUE ET ACTIONNEUR PIÉZOÉLECTRIQUE
TABATA SHUHEI (author) / HIRAYAMA TAKESHI (author) / SHIMURA GEN (author)
2024-05-08
Patent
Electronic Resource
English
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