Results 101 to 110 of about 62,857 (189)

Colossal dielectric performance of pure barium titanate ceramics consolidated by spark plasma sintering

, 2016
A facile sol-gel-hydrothermal method was developed to prepare well-dispersed BaTiO3 (BT) nanocrystals with a size of about 20 nm. By using such nanopowder, dense BT nanoceramics were densified via spark plasma sintering (SPS).
Li, J. X., Yang, X., Zhou, D. K., Li, Duan,, Zeng, R. G., Tian, H., Xu, G., Shen, Zhijian James,, Ren, Z. H., Han, G. R., Gong, S. Y.   +10 more
core   +1 more source

Advanced humidity sensing properties of CuO ceramics

Scientific Reports
This research explores the capacitive humidity sensing properties of CuO ceramic, selected for its simplicity as an oxide and ease of fabrication, in addition to its remarkable dielectric properties.
Kaniknun Sreejivungsa, Noppakorn Thanamoon, Nutthakritta Phromviyo, Wirat Jarernboon, Masaki Takesada, Prasit Thongbai   +5 more
doaj   +1 more source

Colossal Permittivity and Low Loss in BaTiO ₃ Ceramics With X9F Temperature Stability

Colossal permittivity (CP) materials have attracted significant attention due to their crucial role in advancing electronic device miniaturization and performance enhancement. Herein, we present a novel CP material (Ba
Mingliang Zhu, Kang Liu, Chenlin Li, Wangxin Li, Laijun Liu, Chu Huang, Xiangdong Ding, Yingzhi Meng, Dawei Wang, Changbai Long   +9 more
core   +1 more source

Effect of (Cr, Fe)-substitution at B sites of CuB1-x(Cr1/2Fe1/2)xO2 delafossite oxides on optical, magnetic, and dielectric properties

Engineering and Applied Science Research, 2021
In this work, we report room temperature ferromagnetic and colossal dielectric behavior in delafossite oxides of CuB1-x(Cr1/2Fe1/2)xO2 with x = 0.01 and 0.03. All samples were synthesized by the solid-state reaction method.
Sornamol Traiphop, Teerasak Kamwanna
doaj  

New insight into the colossal dielectric constant of polycrystalline CaCu3Ti4O12 underlying the physical mechanisms of the dielectric relaxation

AIP Advances
The new mechanisms of dielectric relaxations previously proposed for polycrystalline CaCu3Ti4O12 (CCTO), modeled by the super-linear power law and extended power law concerning the AC conductivity spectra, are presented on the basis of the cluster model ...
Tsang-Tse Fang, Hsuan-Jung Hsu, Hsing-I. Hsiang   +2 more
doaj   +1 more source

Preparation of La-doped SrTiO₃ ceramics with colossal permittivity and high insulation resistivity via controlling the particle diameters of the powders

Ceramic capacitors are widely studied and applied in the electronic industry. We utilized the sand-milling technique to produce a series of La-doped SrTiO3 powders with varying particle diameters and investigated the effect of particle size on the ...
Hou, Bo, Wen, Weijia, He, Xuming, Zhuo, Weizhuang, Li, Shanshan   +4 more
core   +1 more source

Breaking the loss barrier in CCTO: sol–gel tin enables high permittivity with capacitor-grade loss tangent

Results in Physics
Sn-doped CaCu3Ti4O12 (CCTO) ceramics were synthesized by a sol–gel polymerization route using tin (II) acetate and low-temperature sintering (1015–1020 °C) to overcome the long-standing trade-off between colossal permittivity and dielectric loss (tan δ).
Sasitorn Putjuso, Anuchit Hunyek, Sunan Nonglek, Thanin Putjuso   +3 more
doaj   +1 more source

Direct view at colossal permittivity in donor-acceptor (Nb, In) co-doped rutile TiO2

, 2016
Topical observations of colossal permittivity (CP) with low dielectric loss in donor-acceptor cations co-doped rutile TiO2 have opened up several possibilities in microelectronics and energy-storage devices.
Belkhou, Rachid, Abhijit Hazarika, Somnath Pal, Krishnakumar S. R. Menon, Menon, Krishnakumar SR, Suman Mandal, Rioult, Maxime, Pal, Somnath, Hazarika, Abhijit, Kundu, Asish K, Asish K. Kundu, Maxime Rioult, Mandal, Suman, Rachid Belkhou   +13 more
core   +1 more source

Giant dielectric response and humidity sensing properties of Na1/2Bi1/2Cu3Ti4+xO12 ceramics

Next Materials
In this study, the influence of excess Ti content on the dielectric behavior and humidity sensing capability of Na1/2Bi1/2Cu3Ti4+xO12 ceramics (x = 0, 0.1, and 0.2) was investigated.
Pariwat Saengvong, Prasit Thongbai
doaj   +1 more source

Design and Analysis of a Novel Compact High Permittivity Dielectric Resonator Antenna

, 2008
A very compact and efficient dielectric resonator antenna is proposed and investigated. The novel structure is analyzed using two numerical methods and design guidelines are established.
Sykulski, J. K., Rotaru, M. D.
core   +1 more source