고상 단결정 성장법을 이용한 제 3 세대 압전 단결정의 개발 및 응용

• 영문명: “Generation III” Piezoelectric Single Crystals Developed by Solid-State Single Crystal Growth Method
• 발행기관: 한국세라믹학회
• 저자명: 이호용(Ho-Yong LEE)
• 간행물 정보: 『세라미스트』제24권 제3호, 273~285쪽, 전체 13쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2021.09.30

영문 초록

Crystallographically engineered Relaxor-PT single crystals, specifically PMN-PT (Generation I) and PIN-PMN-PT/PMN-PZT (Generation II), offer much higher piezoelectric and electromechanical coupling coefficients (d33>1,500 pC/N, k33>0.9), when compared to polycrystalline PZT-5H ceramics (d33>600 pC/N, k33>0.75). Recently Ceracomp Co., Ltd. (www.ceracomp.com) has developed the solid-state single crystal growth (SSCG) technique and successfully fabricated Gen III PMN-PZT single crystals modified with acceptors or donors. The piezoelectric constants (d33) of (001) Gen III PMN-PZT single crystals were measured to be higher than 4,000 pC/N and thus about two times higher than those of PMN-PT/PZN-PT (Gen I) and PINPMN- PT/PMN-PZT (Gen II) single crystals. The Gen III PMN-PZT single crystals have been firstly applied to single crystal-epoxy composites, ultrasonic transducers, piezoelectric sensors, and piezoelectric actuators. In this paper we introduce the development of Gen III PMN-PZT single crystals, piezoelectric composites and multilayer single crystal actuators.

목차

1. 서론

2. 압전 단결정 기술 개발 동향 및 전망

3. 고상 단결정 성장법을 이용한 제 3 세대 압전 단결정의 개발 및 응용

4. 결언

REFERENCES

키워드

Piezoelectric Single Crystal Piezoelectric Constant Crystal Growth Piezoelectric Actuator Piezoelectric Composite