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POTASSIUM SODIUM NIOBATE CERAMICS WITH SINGLE CRYSTAL
Disclosed is a (K,Na)NbO3 (abbreviated by “KNN”)-based single crystal ceramic. The KNN-based single crystal ceramic according to the present disclosure is formulated by (K0.5−x/2Na0.5−x/2−y□y/2Mx+y/2)Nb1−x/3+yO3, wherein M indicates a metal having a different valence from Na, and □ indicates a metal vacancy. The above formulated KNN-based single crystal ceramic allows compensating for the volatilization of Na in a growing grain due to the addition of M2+ ions, and substituting M2+ ions for Na+ ions to form metal vacancies, thereby making possible the single crystal growth.
POTASSIUM SODIUM NIOBATE CERAMICS WITH SINGLE CRYSTAL
Disclosed is a (K,Na)NbO3 (abbreviated by “KNN”)-based single crystal ceramic. The KNN-based single crystal ceramic according to the present disclosure is formulated by (K0.5−x/2Na0.5−x/2−y□y/2Mx+y/2)Nb1−x/3+yO3, wherein M indicates a metal having a different valence from Na, and □ indicates a metal vacancy. The above formulated KNN-based single crystal ceramic allows compensating for the volatilization of Na in a growing grain due to the addition of M2+ ions, and substituting M2+ ions for Na+ ions to form metal vacancies, thereby making possible the single crystal growth.
POTASSIUM SODIUM NIOBATE CERAMICS WITH SINGLE CRYSTAL
AHN CHEOL-WOO (author) / RYU JUNG-HO (author) / HAHN BYUNG-DONG (author)
2017-12-14
Patent
Electronic Resource
English
Potassium sodium niobate-lithium niobate piezoelectric crystal and preparation method thereof
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