scholarly journals Characterization of Co:TiO2Thin Film Grown by MOCVD Technique

2018 ◽  
Vol 306 ◽  
pp. 012007
Author(s):  
A Saripudin ◽  
W Purnama
Keyword(s):  
Mocvd Technique

Characterization of Mocvd Grown Epitaxial Ceramic Oxide Thin Films

1989 ◽  
Vol 168 ◽  
Author(s):  
J. C. Parker ◽  
H. L. M. Chang ◽  
J. J. Xu ◽  
D. J. Lam
Keyword(s):  
Thin Films ◽  
Raman Scattering ◽  
Processing Parameters ◽  
Oxide Thin Films ◽  
Film Composition ◽  
Ceramic Oxide ◽  
Mocvd Technique

AbstractCharacterization of TiO2 films grown by the MOCVD technique was carried out using micro-Raman scattering. The effects of processing parameters on the film composition and morphology were investigated. The micro-Raman technique was shown to be a useful tool for characterizing oxide thin films grown by the MOCVD technique.

Growth and Characterization of InGaAsP/InGaAs MQW Structures Grown by MOCVD Technique

1996 ◽  
Vol 203 ◽  
pp. 103-108
Author(s):  
A. Antolini ◽  
G. Fornuto ◽  
C. Papuzza ◽  
D. Soldani ◽  
F. Taiariol
Keyword(s):  
Mocvd Technique

scholarly journals Characterization of Crystalline Structure and Morphology of Ga2O3 Thin Film Grown by MOCVD Technique

2016 ◽  
Vol 721 ◽  
pp. 253-257
Author(s):  
Alvars Kjapsna ◽  
Lauris Dimitrocenko ◽  
Ivars Tale ◽  
Anatoly Trukhin ◽  
Reinis Ignatans ◽  
...  
Keyword(s):  
Thin Film ◽  
Gallium Oxide ◽  
Growth Process ◽  
Oxygen Vacancies ◽  
Oxide Thin Film ◽  
Structure And Morphology ◽  
Carrier Gases ◽  
Compositional Properties ◽  
Mocvd Technique

Growth of gallium oxide thin film was realized with MOCVD on (0001) sapphire substrate. Structural and compositional properties of thin film were studied employing trimethylgallium and water as precursors, carrier gases were H2 and N2. Obtained film is polycrystalline and predominantly consisted of (201) oriented β-Ga2O3. Sample exhibited blue luminescence which is attributed to oxygen vacancies. H2 gas proved to have beneficial effect on film quality and overall growth process.

Development and characterization of thin-film perovskite membranes with oxygen permeability.

2004 ◽  
Vol 835 ◽  
Author(s):  
R. Muydinov ◽  
M. Popova ◽  
A. Kaul ◽  
D. Stiens ◽  
G. Wahl
Keyword(s):  
Thin Film ◽  
Chemical Interaction ◽  
Gas Permeability ◽  
Electronic Conductivity ◽  
Alternative Approach ◽  
Porous Supports ◽  
Gas Tight ◽  
Mocvd Technique ◽  
Exchange Surface

ABSTRACTTwo conceptions of oxygen selective membrane's development, ceramic and thin film ones were considered using perovskite Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) with mixed oxygen ionic and electronic conductivity. The films of BSCF (2–3mkm thick) were deposited by a MOCVD technique on the porous substrates (YSZ, Al2O3). Gas tightness, selective oxygen flux at 750–950°C and stability of the asymmetric film membranes in working conditions were investigated in comparison with ceramic ones. Sufficiently gas tight films can be directly obtained only on the substrates with submicron pores and at Tdep < 600°C. New alternative approach of large-pore substrates modification for obtaining gas-tight oxygen selectively permeable membranes was developed. To avoid the chemical interaction between BSCF and YSZ or Al2O3 the intermediate layer of BaO was pre-deposited. Resulting permeation through asymmetric membranes was thought to be dependent on oxygen exchange surface reaction and gas permeability of the porous supports.

Growth and optical characterization of ZnO thin films deposited on sapphire substrate by MOCVD technique

2005 ◽  
Vol 27 (8) ◽  
pp. 1391-1395 ◽  
Author(s):  
A. El-Yadouni ◽  
A. Boudrioua ◽  
J.C. Loulergue ◽  
Vincent Sallet ◽  
R. Triboulet
Keyword(s):  
Thin Films ◽  
Sapphire Substrate ◽  
Optical Characterization ◽  
Zno Thin Films ◽  
Mocvd Technique

Preparation and Characterization of Superconducting Y–Ba–Cu–O Films by the MOCVD Technique

1990 ◽  
Vol 29 (Part 1, No. 6) ◽  
pp. 1070-1075 ◽  
Author(s):  
Hiroshi Ohnishi ◽  
Yoshihiko Kusakabe ◽  
Minoru Kobayashi ◽  
Susumu Hoshinouchi ◽  
Hiroshi Harima ◽  
...  
Keyword(s):  
Mocvd Technique

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Characterization of Coherent, Ordered Precipitates in Nickel-Base Alloys

1973 ◽  
Vol 31 ◽  
pp. 144-145
Author(s):  
B. H. Kear ◽  
J. M. Oblak
Keyword(s):  
Stable Phase ◽  
Nickel Base Superalloy ◽  
Alloy 718 ◽  
Commercial Alloy ◽  
Precipitate Morphology ◽  
Continuous Precipitation ◽  
Nickel Base ◽  
Base Superalloy ◽  
Strengthening Precipitate

A nickel-base superalloy is essentially a Ni/Cr solid solution hardened by additions of Al (Ti, Nb, etc.) to precipitate a coherent, ordered phase. In most commercial alloy systems, e.g. B-1900, IN-100 and Mar-M200, the stable precipitate is Ni3 (Al,Ti) γ′, with an LI2structure. In A lloy 901 the normal precipitate is metastable Nis Ti3 γ′ ; the stable phase is a hexagonal Do2 4 structure. In Alloy 718 the strengthening precipitate is metastable γ″, which has a body-centered tetragonal D022 structure.Precipitate MorphologyIn most systems the ordered γ′ phase forms by a continuous precipitation re-action, which gives rise to a uniform intragranular dispersion of precipitate particles. For zero γ/γ′ misfit, the γ′ precipitates assume a spheroidal.

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