scholarly journals Enhanced ferro-/piezoelectric properties of tape-casting-derived Er3+-doped Ba0.85Ca0.15Ti0.9Zr0.1O3 optoelectronic thick films

2020 ◽  
Vol 9 (6) ◽  
pp. 693-702
Author(s):  
Jie Xu ◽  
Qiling Lu ◽  
Jinfeng Lin ◽  
Cong Lin ◽  
Xinghua Zheng ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Thick Films ◽  
Sol Gel ◽  
Matrix Material ◽  
Tape Casting ◽  
Optoelectronic Devices ◽  
Casting Method ◽  
Pure Perovskite Structure ◽  
The Matrix ◽  
Surface Morphologies

AbstractEr3+-doped Ba0.85Ca0.15Ti0.9Zr0.1O3 (xEr-BCTZ, x = 0, 0.005, 0.01, 0.015) multifunctional thick films were prepared by the tape-casting method, using sol-gel-derived nano-sized powders as the matrix material. The surface morphologies, photoluminescence, and electrical properties were investigated. Dense microstructures with pure perovskite structure were obtained in the thick films. By doping an appropriate amount of Er3−, the samples exhibit superior up-conversion photoluminescence performance and simultaneously enhanced electrical performances. In addition, relatively higher texture fractions (with the largest value of 83.5%) were realized through introducing plate-like BaTiO3 templates to make the thick film grow by the [001]c orientation. And the ferro-/piezoelectric properties of the thick films were further improved, showing potential in the applications of micro-optoelectronic devices.

scholarly journals Microstructure and Thermoelectric Properties of (Bi0.48Sb1.52)Te3 Thick Films Prepared with Tape Casting Method

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 140
Author(s):  
Lichen Liu ◽  
Ziping Cao ◽  
Min Chen ◽  
Jun Jiang
Keyword(s):  
Thermoelectric Properties ◽  
Low Cost ◽  
Thick Films ◽  
Tape Casting ◽  
Casting Process ◽  
Casting Method ◽  
Glass Substrates ◽  
Conductive Films ◽  
Casting Technology

This paper reports the fabrication and characterization of (Bi0.48Sb1.52)Te3 thick films using a tape casting process on glass substrates. A slurry of thermoelectric (Bi0.48Sb1.52)Te3 was developed and cured thick films were annealed in a vacuum chamber at 500–600 °C. The microstructure of these films was analyzed, and the Seebeck coefficient and electric conductivity were tested. It was found that the subsequent annealing process must be carefully designed to achieve good thermoelectric properties of these samples. Conductive films were obtained after annealing and led to acceptable thermoelectric performance. While the properties of these initial materials are not at the level of bulk materials, this work demonstrates that the low-cost tape casting technology is promising for fabricating thermoelectric modules for energy conversion.

Lithium La0.57Li0.33TiO3Perovskite and Li1.3Al0.3Ti1.7(PO4)3Li-NASICON Supported Thick Films Electrolytes Prepared by Tape Casting Method

2016 ◽  
Vol 163 (8) ◽  
pp. A1653-A1659 ◽  
Author(s):  
R. Jiménez ◽  
A. del Campo ◽  
M. L. Calzada ◽  
J. Sanz ◽  
S. D. Kobylianska ◽  
...  
Keyword(s):  
Thick Films ◽  
Tape Casting ◽  
Casting Method

Influence of powder preparation process on piezoelectric properties of PZT sol-gel composite thick films

2008 ◽  
Vol 48 (1-2) ◽  
pp. 135-142 ◽  
Author(s):  
A. Bardaine ◽  
P. Boy ◽  
P. Belleville ◽  
O. Acher ◽  
F. Levassort
Keyword(s):  
Piezoelectric Properties ◽  
Thick Films ◽  
Sol Gel ◽  
Preparation Process ◽  
Powder Preparation

Microstructure and Behavior of Laser Cladding SiC + Ni-WC Ceramic Coating on H13 Steel

2012 ◽  
Vol 571 ◽  
pp. 77-80 ◽  
Author(s):  
Qiu He Yang ◽  
Shu Jun Shen ◽  
Li Xia Wang
Keyword(s):  
Composite Coating ◽  
Laser Cladding ◽  
Matrix Material ◽  
Scanning Microscope ◽  
H13 Steel ◽  
Cladding Layer ◽  
The Matrix ◽  
And Behavior ◽  
Surface Morphologies ◽  
Ball On Disc

To obtain high properties of laser cladding layer, and to expand the service life of the mold, the laser cladding layer with Ni-WC and SiC on the surface of H13 steel made by using a laser. Then the cross-section and surface morphologies of the coatings and wear tracks were observed with a JSM-5610 type scanning microscope. The friction and properties were examined under dry sliding conditions using a WTM-1E type ball-on-disc machine. The wear mechanisms are discussed as well. The results show that the composite coating is very compact and good blinding with the substrate after laser remelting, and the wear mass loss of the composite coating reduced to about 1/4 of the matrix material.

Protection of Aluminium Alloys via Hybrid Sol-Gel Coatings with Encapsulated Organic Corrosion Inhibitors

2006 ◽  
Vol 519-521 ◽  
pp. 661-666 ◽  
Author(s):  
A.N. Khramov ◽  
V.N. Balbyshev ◽  
R.A. Mantz
Keyword(s):  
Corrosion Protection ◽  
Corrosion Inhibitors ◽  
Electrochemical Impedance ◽  
Substrate Surface ◽  
Sol Gel ◽  
Matrix Material ◽  
The Matrix ◽  
Aluminum Alloy 2024 ◽  
Structural Hybrid ◽  
Organic Corrosion Inhibitors

Several heterocyclic organic corrosion inhibitors that contain ionazible functional group were encapsulated into nano-structural hybrid organo-silicate coating to improve its corrosion protection performance on aluminum alloy 2024-T3 substrate. When the coating is formed on the substrate surface, it serves simultaneously as protective barrier and as a reservoir for leachable corrosion inhibitor that is stored and released through the mechanism of reversible ionic interaction with the matrix material. The efficiency of active corrosion protection for these coating systems was examined by electrochemical methods including potentiodynamic polarization (PDS) and electrochemical impedance spectroscopy (EIS). The effects of chemical structure and the loading concentration of the inhibitor within the coating were determined.

Fabrication of Piezoelectric-Rubber of Large Piezoelectric Property

2014 ◽  
Vol 1622 ◽  
pp. 17-23 ◽  
Author(s):  
Shogo Mamada ◽  
Naoyuki Yaguchi ◽  
Masanori Hansaka ◽  
Masafumi Yamato ◽  
Hirohisa Yoshida
Keyword(s):  
Dielectric Constant ◽  
Young’S Modulus ◽  
Piezoelectric Ceramic ◽  
Piezoelectric Properties ◽  
Young's Modulus ◽  
Matrix Material ◽  
Matrix Properties ◽  
The Matrix ◽  
Piezoelectric Strain ◽  
Piezoelectric Strain Constant

ABSTRACTIn the previous investigation, piezoelectric properties of the ‘Aligned-type’ in which the piezoelectric-ceramic particles are formed in linear aggregates in the rubber, remarkable piezoelectric properties were confirmed. In this investigation, to further enhance the piezoelectric properties of the Aligned-type, the influence of the matrix properties was investigated. The properties on which we focused were the dielectric constant and the Young’s modulus. Four kinds of matrix materials whose dielectric constant and Young’s modulus are different from each other; Silicone gel, Silicone rubber, Urethane rubber and Poly-methyl-methacrylate were investigated. As a result of measurement of the piezoelectric strain constant d33 of the Aligned-Type, it was confirmed that though the influence of the dielectric constant of the matrix material was small, the lower the Young’s modulus of the matrix was, the higher d33 was.

scholarly journals Synthesis of Al-Fly Ash Composites by Modified Two Step Stir Casting Method

2012 ◽  
Vol 488-489 ◽  
pp. 775-781 ◽  
Author(s):  
P. Shanmughasundaram ◽  
R. Subramanian ◽  
G. Prabhu
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Matrix Material ◽  
Casting Process ◽  
Stir Casting ◽  
Casting Method ◽  
Industrial Preparation ◽  
The Matrix ◽  
Method Analysis ◽  
Properties Of Composites

In the stir casting process, homogeneous dispersion of reinforcing particles within the matrix material is one such major problem, which influences on the properties of composites. In this research, an attempt has been made to study the influence of fly ash wt.% (10 ,15 and 20), ratio of the impeller outer dia to crucible inner dia (0.7,0.5 and 0.3) and processing method (liquid state stirring, two step stirring and modified two step stirring) on the mechanical properties and the distribution of fly ash particles in the Al matrix.Optimum parameters were identified for attaining the maximum mechanical properties such as hardness and tensile strength of composites by the application of Taguchi method, Analysis of Variance (ANOVA) and the results were validated by confirmation test.The present work could provide a guide for the industrial preparation of composites.

The Strength and Hardness of Metal Matrix Composites by Binder Additives

2005 ◽  
Vol 297-300 ◽  
pp. 489-494 ◽  
Author(s):  
Won Jo Park ◽  
Hae Young Jung ◽  
Sun Chul Huh ◽  
Han Ki Yoon ◽  
Kang Kil Lee
Keyword(s):  
Tensile Properties ◽  
Room Temperature ◽  
Squeeze Casting ◽  
Matrix Material ◽  
Matrix Composites ◽  
Casting Method ◽  
Inorganic Binder ◽  
Tio2 Sol ◽  
The Matrix ◽  
The Status

20 vol.% aluminum borate whisker (Al18B4O33w) reinforced AC4CH alloy composite was fabricated by squeeze casting method. The matrix is controlled its impurities, which make metal alloys, especially AC4CH alloy that is made by restraining 0.2% Iron and aluminum to make a matrix material. The perform of composite materials was made from Al18B4O33w with 5% regulated three kinds of inorganic binders, SiO2, Al2O3 and TiO2 sol, respectively and then sintered at 1373K. The composites were obtained by squeeze cast infiltration of the molten alloy to the perform. Then it was squeeze casting into the matrix. The status of adhesions of whisker perform was Observed by SEM. Micro-Vickers hardness and tensile properties at the room temperature were estimated. Al18B4O33w/ AC4CH composites containing TiO2 sol has excellent properties on tensile properties and microvickers hardness compared with the other composites without inorganic binder, containing SiO2 and Al2O3 sol inorganic binder.

Preparation of structured sol–gel films using tape casting method

2007 ◽  
Vol 137 (1-3) ◽  
pp. 162-165 ◽  
Author(s):  
V. Kisand ◽  
J. Shulga ◽  
T. Tätte ◽  
U. Visk ◽  
M. Natali ◽  
...  
Keyword(s):  
Sol Gel ◽  
Tape Casting ◽  
Casting Method ◽  
Sol Gel Films
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