scholarly journals Preparation and Sintering Effect in Quartz-Barium Titanate Porous Ceramics and Permeability Modulation Using an Implanted Electrode

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Ernesto Suaste Gómez ◽  
José de Jesús Agustín Flores Cuautle ◽  
Omar Terán Jiménez
Keyword(s):  
Barium Titanate ◽  
Permeability Coefficient ◽  
Piezoelectric Ceramics ◽  
Porous Ceramics ◽  
Darcy Law ◽  
Internal Electrode ◽  
Nichrome Wire ◽  
Liquid Permeability ◽  
Porous Area ◽  
Alternating Voltage

Barium titanate and quartz mixed in different proportions were used to create porous piezoelectric ceramics. Three different sintering temperatures were used for the ceramics preparation; a nichrome wire was used as internal electrode in porous ceramics. Characteristics as porous area, porosity, and its relationship with quartz percentage and sintering temperatures were studied. Porous ceramics with an implanted electrode were created, by applying an alternating voltage in the internal electrode that controlled the liquid permeability coefficient, calculated by the Darcy Law.

Barium Titanate Piezoelectric Ceramics Manufactured by Two-Step Sintering

2007 ◽  
Vol 46 (10B) ◽  
pp. 7035-7038 ◽  
Author(s):  
Tomoaki Karaki ◽  
Kang Yan ◽  
Masatoshi Adachi
Keyword(s):  
Barium Titanate ◽  
Piezoelectric Ceramics

scholarly journals Bioactive Piezoelectric Ceramics of Barium Titanate/Calcium Silicate Composite

2021 ◽  
pp. 549
Author(s):  
WEI Ziqin ◽  
XIA Xiang ◽  
LI Qin ◽  
LI Guorong ◽  
CHANG Jiang
Keyword(s):  
Barium Titanate ◽  
Calcium Silicate ◽  
Piezoelectric Ceramics

Electrical Properties of AlN and SiO2Co-Modified Barium Titanate Lead-Free Piezoelectric Ceramics

2016 ◽  
Vol 490 (1) ◽  
pp. 36-42
Author(s):  
W. D. Fei ◽  
D. Xu ◽  
W. L. Li ◽  
L. D. Wang ◽  
W. Wang
Keyword(s):  
Electrical Properties ◽  
Barium Titanate ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Titanate Lead

scholarly journals Preparation of barium titanate porous ceramics and their sensor properties

2013 ◽  
Vol 121 (1416) ◽  
pp. 698-701 ◽  
Author(s):  
Kazuki MAEDA ◽  
Ichiro FUJII ◽  
Kouichi NAKASHIMA ◽  
Gakuyo FUJIMOTO ◽  
Kazuhiro SUMA ◽  
...  
Keyword(s):  
Barium Titanate ◽  
Porous Ceramics ◽  
Sensor Properties

scholarly journals Characterization of High Porous PZT Piezoelectric Ceramics by different Techniques

2018 ◽  
Vol 68 (5) ◽  
pp. 500-504 ◽  
Author(s):  
Praveen Kumar B ◽  
Bhupender Rawal ◽  
KM Rajan
Keyword(s):  
Lead Zirconate Titanate ◽  
Figure Of Merit ◽  
Porous Ceramic ◽  
Piezoelectric Ceramics ◽  
Porous Ceramics ◽  
Lead Zirconate ◽  
Ultimate Properties ◽  
Plastic Sphere ◽  
Porous Pzt

Ultimate properties of a porous ceramic is highly process dependent. In this study, prevalent porous ceramics fabrication methods (Freeze casting, Foam reticulation and Burnable Plastic Sphere (BURPS) method) have been compared by fabricating the porous lead zirconate titanate (PZT) based piezoelectric ceramics. Field Emission Scanning electron microscopy (FESEM) studies were carried out to study the pore size and distribution of the ceramics. Hydrostatic co-efficients increased tremendously on incorporation of porosity which led to Hydrostatic Figure of Merit of 7480 in Foam reticulation samples (porosity 86%). The three dimensionally interconnected networks in the freeze casted samples led to lowest acoustic impedance (6 MRayls) despite not having the lowest density.

Piezoelectric and Dielectric Enhancement of New Nano-structured Ceramics with Heteroepitaxial Interfaces

2013 ◽  
Vol 2013 (CICMT) ◽  
pp. 000001-000004
Author(s):  
Satoshi Wada ◽  
Kenta Yamashita ◽  
Hideto Kawashima ◽  
Ichiro Fujii ◽  
Shintaro Ueno ◽  
...  
Keyword(s):  
Barium Titanate ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Solvothermal Method ◽  
Piezoelectric Ceramics ◽  
Piezoelectric Constant ◽  
Molar Ratio ◽  
Potassium Niobate ◽  
Composite Ceramics ◽  
Dielectric Enhancement

Barium titanate (BT) - potassium niobate (KN) nano-structured ceramics with an artificial morphotropic phase boundary (MPB) structure were prepared by a solvothermal method at temperatures below 230 °C. Various characterizations of the BT-KN nano-structured ceramics revealed that the BT/KN molar ratio was 1, the porosity was around 30 %, and the interface between BT particles and KN crystals was heteroepitaxial. The apparent piezoelectric constant d33* was 136 pC/N, which was three times larger than that of 0.5BT-0.5KN dense composite ceramics. The concept proposed in this study can be useful to create piezoelectric ceramics with artificial MPB regions.

Investigation of thermal and dielectric properties of tin-doped piezoelectric ceramics based on barium titanate

2010 ◽  
Vol 52 (1) ◽  
pp. 121-125
Author(s):  
O. V. Malyshkina ◽  
A. A. Movchikova ◽  
K. N. Penzov ◽  
R. Steinhausen ◽  
H. T. Langhammer ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Barium Titanate ◽  
Piezoelectric Ceramics
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