专利检索 ap:("KOREA INSTITUTE OF MACHINERY AND MATERIALS") AND inv:"Jung-Ho Ryu" 第 1 页

1.

发明授权
Potassium sodium niobate ceramics with single crystal 有权

公开(公告)号：US10161061B2

公开(公告)日：2018-12-25

申请号：US15260320

申请日：2016-09-09

申请人： KOREA INSTITUTE OF MACHINERY AND MATERIALS

发明人： Cheol-Woo Ahn , Jung-Ho Ryu , Byung-Dong Hahn

IPC分类号： H01L41/18 , C30B29/30 , C30B29/22 , C30B1/04 , C04B35/495 , H01L41/187

摘要： 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.