• 文献标题:   High frequency dielectric characterization of graphene doped flexible ceramics multilayers
  • 文献类型:   Article
  • 作  者:   JUNIOR SANF, SOUZA ALR, CRUZ LB, VAZ F, FERREIRA A, BOHN F, ACCHAR W, CORREA MA
  • 作者关键词:   tape casting, dielectric, dielectric los, highfrequency substrate
  • 出版物名称:   CERAMICS INTERNATIONAL
  • ISSN:   0272-8842 EI 1873-3956
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1016/j.ceramint.2022.03.306 EA JUN 2022
  • 出版年:   2022

▎ 摘  要

This paper explores the tape casting technique to produce flexible heterostructured multilayers composed of graphene nanoplatelets doped Alumina and Ceria doped Nickel Oxide-Gadolinium. Given the excellent mechanical and electrical properties of graphene, multilayers were structured to explore the dielectric properties at a high-frequency regime. The stability of the suspensions, measured by rheological characterization, showed a pseudoplastic behavior. The structural properties of the flexible tapes were analyzed by X-ray diffraction and scanning electron microscopy. Electrical properties obtained through I - V curves showed an insulating behavior. The dielectric characterization was measured at a high-frequency regime (0.01 up to 1.5 GHz). The findings reflect the strong dependence of the dielectric behavior with the multilayer structure and graphene nanoplatelets doping concentration in the Alumina. The results open new perspectives of multifunctionalization flexible ceramics tapes for high-frequency applications.