템플릿 기반 일방향 그레인 성장을 통한 고성능 무연 압전 세라믹 제조 연구 동향 (Templated Grain Growth for High-Performance Lead-Free Piezoceramics)

서지정보

· 발행기관 : 한국세라믹학회
· 수록지 정보 : 세라미스트 / 24권 / 2호 / 130 ~ 144페이지
· 저자명 : 박선화, 안철우, 이정우, 민유호

초록

As a new class of novel technologies for fabrication of piezoceramics, the templated grain growth (TGG) has been gaining tremendous attention due to the ability to align ferroelectric domains and thus improve piezoelectric properties, which are similar with the ones of single crystal. Towards the realization of textured grains in a specific direction, two-dimensional template materials should be preferentially needed with some specific conditions such as small lattice mismatch, similar crystal structure and composition compared to those of matrix piezoelectric ceramic powders. This mini review presents recent progress on TGG to provide high performance textured (K,Na)NbO3 ceramics as an ideal lead-free to lead-based piezoceramics with a focus on the fabrication fundamentals and underlying mechanism. Additionally, some parameters related to the fabrication of green body during a tape casting are surveyed. Finally, we provide an insight into challenges and future directions in the TGG-based piezoceramics.

영어초록

As a new class of novel technologies for fabrication of piezoceramics, the templated grain growth (TGG) has been gaining tremendous attention due to the ability to align ferroelectric domains and thus improve piezoelectric properties, which are similar with the ones of single crystal. Towards the realization of textured grains in a specific direction, two-dimensional template materials should be preferentially needed with some specific conditions such as small lattice mismatch, similar crystal structure and composition compared to those of matrix piezoelectric ceramic powders. This mini review presents recent progress on TGG to provide high performance textured (K,Na)NbO3 ceramics as an ideal lead-free to lead-based piezoceramics with a focus on the fabrication fundamentals and underlying mechanism. Additionally, some parameters related to the fabrication of green body during a tape casting are surveyed. Finally, we provide an insight into challenges and future directions in the TGG-based piezoceramics.

참고자료

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