Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 42, Issue 6, Pages 2789-2797Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2022.01.064
Keywords
Cold sintering; Zinc oxide; Ferroelectric polymer; Grain boundaries
Categories
Funding
- National Science Foundation, as part of the Center for Dielectrics and Piezoelectrics [IIP-1841453, IIP-1841466]
Ask authors/readers for more resources
The Cold Sintering Process (CSP) is used to design ceramic-polymer composites with PVDF-TrFE as an active phase for controlling the electrical properties of the materials. The thickness of the polymer phase is verified through electrical measurements and modeling.
In this study, the Cold Sintering Process (CSP) is used to design ceramic-polymer composites with Polyvinylidene fluoride Trifluoroethylene (PVDF-TrFE), a ferroelectric co-polymer, as an active intergranular grain boundary phase in a semiconducting Zinc Oxide (ZnO) electroceramic matrix. The conductivity is modeled with Schottky thermionic emission and Fowler-Nordheim tunneling as a function of both temperature and voltage. In addition, through details of the dielectric characterization, the interfaces are also considered with the effective permittivity resulting with a space charge relaxation of the PVDF-TrFE. The Maxwell-Wagner-Sillars (MWS) model was used to predict similar to 3 nm as the thickness of the intergranular PVDF-TrFE phase controlling electrical properties of the composite. Transmission electron microscopy (TEM) investigation of the grain boundary phase confirms the polymer thicknesses to the dimensions predicted from the various electric measurements and subsequent modeling.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available