Selective Deposition of TiO2 during Monolayer Formation of TiO2 and Iron Oxide Nanocrystals by Electrophoretic Deposition in Non-Polar Solvents

2012 ◽  
Vol 507 ◽  
pp. 89-93 ◽  
Author(s):  
Isabel Gonzalo-Juan ◽  
Alex J. Krejci ◽  
James H. Dickerson
Keyword(s):  
Iron Oxide ◽  
Electrophoretic Deposition ◽  
Colloidal Suspensions ◽  
Processing Parameters ◽  
Selective Deposition ◽  
Polar Solvents ◽  
Monolayer Formation ◽  
Particle Mobility

The electrophoretic deposition of TiO2 iron oxide nanocrystal monolayers from stable, mixed colloidal suspensions by electrophoretic deposition using non polar solvents is reported. The selective deposition of TiO2 was accomplished by controlling the mobility of the nanocrystals and the voltage during electrophoretic deposition. The effect of the electrophoretic deposition processing parameters (voltage and particle mobility) on the promotion and suppression of nanocrystal deposition was investigated.

The Effect of Nanoparticle Coating on the Thermal Conductivity of Nanofluids

2009 ◽  
Vol 1207 ◽  
Author(s):  
Michael John Fornasiero ◽  
Diana-Andra Borca-Tasciuc
Keyword(s):  
Thermal Conductivity ◽  
Iron Oxide ◽  
Effective Thermal Conductivity ◽  
Colloidal Suspensions ◽  
Maxwell Model ◽  
Carrier Fluid ◽  
Coated Nanoparticles ◽  
Transient Hot Wire Technique ◽  
Potential Applications ◽  
Iron Oxide Core

AbstractNanofluids are engineered colloidal suspensions of nanometer-sized particles in a carrier fluid and are receiving significant attention because of their potential applications in heat transfer area. Theoretical investigations have shown that the enhanced thermal conductivity observed in nanofluids is due to nanoparticle clustering and networking. This provides a low resistance path to the heat flowing through the fluid. However, the surface coating of the nanoparticles, which is often used to provide stable dispersion over the long term, may act as a thermal barrier, reducing the effective thermal conductivity of the nanofluid. Moreover, nanofluids with the same type of nanoparticles may exhibit different effective thermal conductivities, depending upon the thermal properties and thickness of the coating. In this context, thermal conductivity characterization of well dispersed iron oxide nanoparticles with two different surface coatings was carried out employing the transient hot wire technique. The diameter of the iron oxide core was 35 nm and the coatings used were aminosilane and carboxymethyl-dextran (CMX) of 7nm in thickness. Preliminary results suggest that effective thermal conductivity of CMX coated nanoparticle suspensions is slightly higher than that of aminosilane coated nanoparticles. In both cases, the effective thermal conductivity is higher than that predicted by the Maxwell model for composite media.

Electrophoretic Deposition of Magnesium Oxide Nanoparticles on Magnesium: Processing Parameters, Microstructures, Degradation, and Cytocompatibility

2019 ◽  
Vol 2 (12) ◽  
pp. 5634-5652
Author(s):  
Mayra Celene Cortez Alcaraz ◽  
Aaron F. Cipriano ◽  
Jiajia Lin ◽  
Pedro Soria ◽  
Qiaomu Tian ◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Electrophoretic Deposition ◽  
Processing Parameters ◽  
Oxide Nanoparticles ◽  
Magnesium Oxide Nanoparticles

Doped iron oxide scaffolds with gradient porosity fabricated by freeze casting: pore morphology prediction and processing parameters

2020 ◽  
Vol 36 (11) ◽  
pp. 1227-1237 ◽  
Author(s):  
P. J. Lloreda-Jurado ◽  
E. M. Pérez-Soriano ◽  
A. Paúl ◽  
J. Herguido ◽  
J. A. Peña ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Processing Parameters ◽  
Pore Morphology ◽  
Freeze Casting

ADVANCEMENT IN PREPARATION OF HYDROXYAPATITE/BIOGLASS GRADED COATINGS BY ELECTROPHORETIC DEPOSITION

2005 ◽  
Vol 12 (05n06) ◽  
pp. 773-779 ◽  
Author(s):  
LIANG YAO ◽  
CHUANZHONG CHEN ◽  
DIANGANG WANG ◽  
QUANHE BAO ◽  
JIE MA
Keyword(s):  
Influencing Factors ◽  
Electrophoretic Deposition ◽  
Deposition Time ◽  
Complex Shape ◽  
Good Method ◽  
Processing Parameters ◽  
Porous Surface ◽  
Graded Coatings ◽  
Dispersion Media ◽  
Bioceramic Coatings

Electrophoretic deposition is a good method in the preparation of hydroxyapatite/bioglass graded coatings. Its processing parameters are easy to be operated. As it is nonbeeline process, it can be used in the deposition of complex shape and porous surface. This paper reviewed the advancement of the graded coatings in recent years, concluded the principles, characters, steps of electrophoretic deposition of bioceramic coatings and analyzed influencing factors in detail, such as granularity of suspension, aging of suspension, dispersion media, PH of suspension, electricity, voltage, deposition time, pretreatment of substrate and sintering. The foreground of hydroxyapatite/bioglass graded coatings is expected.

Short Review: Electrophoretic Deposition (EPD) on Non-Conductive Substrate

2012 ◽  
Vol 488-489 ◽  
pp. 1358-1362
Author(s):  
Siti Alwani Binti Ab. Aziz ◽  
Shahrin Hisham Amirnordin ◽  
Ab. Rahman Hamimah ◽  
Hasan Zuhudi Abdullah ◽  
Hariati Taib
Keyword(s):  
Electrophoretic Deposition ◽  
Thin Film Deposition ◽  
Short Review ◽  
Processing Parameters ◽  
Film Deposition ◽  
Research Progress ◽  
Conducting Material ◽  
Comprehensive Overview ◽  
Electrically Conducting ◽  
Conducting Substrate

The application of electrophoretic deposition (EPD) technique for deposition of thick and thin film deposition has been extended not only on to electrically conducting materials but also to non-conducting material. The review encompasses the fundamental aspects of EPD technique and specific factors influencing the EPD process on non-conducting substrate. Important EPD processing parameters, during EPD on non-conducting substrate discussed are types of substrate, counter-electrode substrate and substrate additive. The parameters were discussed based on the up-to-date comprehensive overview of the current research progress in the field of EPD on non-conducting material.

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