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High-entropy calcium bismuth niobate-based lead-free piezoelectric ceramic material and preparation method thereof
The invention provides a high-entropy calcium bismuth niobate-based leadless piezoelectric ceramic material and a preparation method thereof, and belongs to the field of piezoelectric ceramic materials, the chemical composition is (CaxSryBazBiuNa1-x-y-z-u) Bi2Nb2-wTawO9, 0.2 < = x < = 1, 0.2 < = y < = 1/3, 0.2 < = z < = 1/3, 0 < = u < = 0.2, 0 < = w < = 1, and u and w are not 0 at the same time. The ceramic composition of the system is converted from a single orthogonal ferroelectric phase to a tetragonal phase, and has good piezoelectric property and temperature insensitivity.
本发明提供一种高熵铌酸铋钙基无铅压电陶瓷材料及制备方法，属于压电陶瓷材料领域，化学组成为(CaxSryBazBiuNa1‑x‑y‑z‑u)Bi2Nb2‑wTawO9，0.2≤x≤1，0.2≤y≤1/3，0.2≤z≤1/3，0≤u≤0.2，0≤w≤1，u和w不同时为0。该体系的陶瓷组成为从单一正交铁电相向四方相转变，并且具有良好的压电性能与温度不敏感特性。
High-entropy calcium bismuth niobate-based lead-free piezoelectric ceramic material and preparation method thereof
The invention provides a high-entropy calcium bismuth niobate-based leadless piezoelectric ceramic material and a preparation method thereof, and belongs to the field of piezoelectric ceramic materials, the chemical composition is (CaxSryBazBiuNa1-x-y-z-u) Bi2Nb2-wTawO9, 0.2 < = x < = 1, 0.2 < = y < = 1/3, 0.2 < = z < = 1/3, 0 < = u < = 0.2, 0 < = w < = 1, and u and w are not 0 at the same time. The ceramic composition of the system is converted from a single orthogonal ferroelectric phase to a tetragonal phase, and has good piezoelectric property and temperature insensitivity.
本发明提供一种高熵铌酸铋钙基无铅压电陶瓷材料及制备方法，属于压电陶瓷材料领域，化学组成为(CaxSryBazBiuNa1‑x‑y‑z‑u)Bi2Nb2‑wTawO9，0.2≤x≤1，0.2≤y≤1/3，0.2≤z≤1/3，0≤u≤0.2，0≤w≤1，u和w不同时为0。该体系的陶瓷组成为从单一正交铁电相向四方相转变，并且具有良好的压电性能与温度不敏感特性。
High-entropy calcium bismuth niobate-based lead-free piezoelectric ceramic material and preparation method thereof
一种高熵铌酸铋钙基无铅压电陶瓷材料及制备方法
CHEN JUN (author) / JOO DONG HWAN (author) / QI HE (author) / WU JIE (author) / CHEN DALI (author)
2024-02-23
Patent
Electronic Resource
Chinese
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