Introducing a ZnO–PTFE (polymer) nanocomposite varistor via the cold sintering process

X Zhao, J Guo, K Wang… - Advanced …, 2018 - Wiley Online Library
A ZnO–PTFE nanocomposite is formed from a cold sintering process with volume fractions of
PTFE up to 40 vol%. The polymer is distributed along grain boundaries and used to limit …

Cold sintering ZnO based varistor ceramics with controlled grain growth to realize superior breakdown electric field

X Zhao, J Liang, J Sun, J Guo, S Dursun… - Journal of the European …, 2021 - Elsevier
Controlling the grain growth and grain boundary morphology is of great importance in the
manipulation of electrical properties of electro-ceramics. However, it has been a challenge …

Dielectric properties of Al2O3 modified CaCu3Ti4O12 ceramics

Y Zhang, LL Xue, K Zeng, XW Wang, LY Sun… - Journal of Materials …, 2019 - Springer
Abstract In this work, CaCu 3 Ti 4 O 12 modified by Al 2 O 3 (w= 0, 0.05, 0.1, 1%) powders
were prepared via a sol–gel process, and then the ceramics were prepared by conventional …

Integration and characterization of a ferroelectric polymer PVDF-TrFE into the grain boundary structure of ZnO via cold sintering

J Mena-Garcia, S Dursun, K Tsuji, SH Bang… - Journal of the European …, 2022 - Elsevier
In this study, the Cold Sintering Process (CSP) is used to design ceramic-polymer
composites with Polyvinylidene fluoride Trifluoroethylene (PVDF-TrFE), a ferroelectric co …

Effect of different pH values adjusted by ammonia on the dielectric properties of CaCu3Ti4O12 ceramics prepared by a sol-gel method

J Zhang, J Zheng, Y Li, Y Liu, W Hao, L Lin, Y Li… - Journal of Alloys and …, 2019 - Elsevier
To investigate the effect of different pH values (pH= 1, 3, 5, 7) of a solution used to prepare
CaCu 3 Ti 4 O 12 (CCTO) ceramics on the microstructure and dielectric properties of the …

Effect of thermal history on structural, microstructural properties and J–E characteristics of CaCu3Ti4O12 polycrystalline ceramic

PY Raval, AR Makadiya, PR Pansara… - Materials Chemistry and …, 2018 - Elsevier
We report, the effect of heat treatments slow cooling, rapid thermal cooling (quenching) and
microwave-assisted heating, on structural, microstructural and J–E characteristics of CaCu 3 …

Doping effect of Nb on ionic polarization of SrTiO3

J Nishiyama, K Kanehara, H Takeda… - Journal of the Ceramic …, 2019 - jstage.jst.go.jp
The dielectric and ferroelectric properties of perovskitetype oxides (ABO3) strongly depend
on constituent elements, microstructure, and defects etc. Various approaches such as …

Alkali volatilization of (Li, Na, K) NbO3-based piezoceramics and large-field electrical and mechanical properties

H Nishiyama, A Martin, K Hatano… - Journal of the Ceramic …, 2021 - jstage.jst.go.jp
Piezoelectric materials are an integral part of modernday electronics because of their ability
to transduce an electrical signal into a mechanical strain, and vice versa. Lead-free …

Microstructure, dielectric and nonlinear electrical properties associated with sintering conditions in calcium copper titanate ceramics

Y Qiu, ZJ Zou, LH Zhou, MR Bai, XH Li - Journal of Materials Science …, 2017 - Springer
A series of calcium copper titanate (CaCu 3 Ti 4 O 12, CCTO) samples are prepared by a
citric acid sol–gel method and the effect of sintering conditions on microstructure, dielectric …

Deep trap states relaxation in CaCu3Ti4O12

XJ Luo, S Yang, XR Su, YY Zhu, Y Wang… - Journal of Alloys and …, 2020 - Elsevier
The abnormal dielectric behaviors of the perovskite oxide CaCu 3 Ti 4 O 12 (CCTO)
ceramics were discussed. The hysteretic dc current–voltage (I–V) curves that change …