Characteristics of Zinc Oxide Film Prepared by Chemical Spray Deposition as a Gas Sensor

Mohammed K. Khalaf

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Publication Date

Sat Jan 01 2011

Journal Name

Iraqi Journal Of Physics

Volume

9

Issue Number

14

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Characteristics of Zinc Oxide Film Prepared by Chemical Spray Deposition as a Gas Sensor

Zinc Oxide

Chemical spray pyrolysis

Gas sensing

Electro-optical properties

Mohammed K. Khalaf

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Zinc oxide thin films were deposited by chemical spray pyrolysis onto glass substrates which are held at a temperature of 673 K. Some structural, electrical, optical and gas sensing properties of films were studied. The resistance of ZnO thin film exhibits a change of magnitude as the ambient gas is cycled from air to oxygen and nitrogen dioxide

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Publication Date

Mon Nov 07 2016

Journal Name

Abu Dhabi International Petroleum Exhibition & Conference

Developed Material Balance Approach for Estimating Gas Initially in Place and Ultimate Recovery for Tight Gas Reservoirs

reservoir simulation

Material Balance Equation

tight gas

calculation

complex reservoir

viscosity

tight gas reservoir

transmissibility

equation

Omar

Md Hossain

Steven

Ali

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Abstract<p>The gas material balance equation (MBE) has been widely used as a practical as well as a simple tool to estimate gas initially in place (GIIP), and the ultimate recovery (UR) factor of a gas reservoir. The classical form of the gas material balance equation is developed by considering the reservoir as a simple tank model, in which the relationship between the pressure/gas compressibility factor (p/z) and cumulative gas production (Gp) is generally appeared to be linear. This linear plot is usually extrapolated to estimate GIIP at zero pressure, and UR factor for a given abandonment pressure. While this assumption is reasonable to some extent for conventional reservoirs, this may incur</p> ... Show More

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Publication Date

Thu Apr 01 2021

Journal Name

Journal Of Alloys And Compounds

A holistic approach to optical characterizations of vacuum deposited Cu2ZnSnS4 thin film coatings for solar absorbing layers

Nusrat

Humayun

Hatem

Md Kamal

M. Mahbubur

M.S.

Amun

Md Abul

Farid

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(10)

(12)

Publication Date

Sat Oct 01 2016

Journal Name

Journal Of Engineering

Improvement of Asphalt Concrete Mixtures by Adding Pulverised Fuel Ash as Filler

mineral filler

hot asphalt mixtures

PFA

mechanical properties

durability.

Abbas Talib

Karar Shakir

Hussain Ameen

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Consuming of by-product or waste materials in highway engineering is significant in the construction of new roads and/or in renovations of the existing ones. Pulverised Fuel ash (PFA), which is a by-product material of burning coal in power stations, is one of these materials that might be incorporated instead of mineral filler in hot asphalt mixtures.

Two types of surface course mixtures have been prepared one with conventional mineral filler i.e. ordinary Portland cement (OPC) while the second was with PFA. Several testings have been conducted to indicate the mechanical properties which were Marshall Stability and Indirect Tensile Strength tests. On the other hand, moisture damage and ageing have been evaluated

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Publication Date

Tue Dec 01 2009

Journal Name

Iraqi Journal Of Physics

Study of the heat treatment effect on electrical and porosity of Cermet Coating layers (Zro2 – Y2O3) prepared by Thermal Spraying

Cermet Coating layers

ابراهيم رمضان

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The technical of Flame Thermal Spray had been used in producing a cermet
composite based on powders of stabilized zirconium oxide containing amount of
Yatteria oxide (ZrO2- 8Y2O3) reiforced by minerals powders of bonding material
(Ni-Cr- Al- Y) in different rates of additions (25, 35, 50) on stainless steel base type
(304) after preparing it by the way of Grit Blasting.
Before heat treatment, the coated cermet layers were characterized for porosity
and electric resistivity. All samples were heat treated in vacuum furnace at different
temperature and times. The physical tests had been operated after heat treatment
and gave best results especially porosity, which found to be reduced dramatically
and producing hig

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Publication Date

Wed Aug 04 2021

Journal Name

Ibn Al-haitham International Conference For Pure And Applied Science (ihicps)

Effect of Annealing on structural and optical properties of Indium Selenide (InSe) Thin films prepared by vacuum THERMAL EVAPORATION TECHNIQUE

Ghuzlan sarhan

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Publication Date

Mon Mar 08 2021

Journal Name

Baghdad Science Journal

Laser Finger Print Sensor with Holographic Grating

Adnan

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Design and Construction system for recording Finger print by laser, and separted the signal to noise by holographic element, was done. For safety, total reflection lighting ensures hat aser earns an not enter An operators eyes. Holographic diffraction grating was used instead of computer program to contrast images.

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Publication Date

Mon Jun 12 2017

Journal Name

Day 3 Wed, June 14, 2017

A New Practical Method for Predicting Equivalent Drainage Area of Well in Tight Gas Reservoirs

Omar

Md Mofazzal

Ali

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Abstract<p>The tight gas is one of the main types of the unconventional gas. Typically the tight gas reservoirs consist of highly heterogeneous low permeability reservoir. The economic evaluation for the production from tight gas production is very challenging task because of prevailing uncertainties associated with key reservoir properties, such as porosity, permeability as well as drainage boundary. However one of the important parameters requiring in this economic evaluation is the equivalent drainage area of the well, which relates the actual volume of fluids (e.g gas) produced or withdrawn from the reservoir at a certain moment that changes with time. It is difficult to predict this equival</p> ... Show More

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(12)

(8)

Publication Date

Fri Dec 01 2023

Journal Name

Materials Today Sustainability

Structure and performance of polyvinylchloride microfiltration membranes improved by green silicon oxide nanoparticles for oil-in-water emulsion separation

Sara

Sama

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(23)

(6)

Publication Date

Mon Jan 01 2024

Journal Name

Journal Of Materials Science: Materials In Electronics

Influence of cobalt doping on structural and optical properties of copper oxide expected as an inorganic hole transport layer for perovskite solar cell

Abdulmalek N.M.

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(9)

(8)

Publication Date

Wed Jan 01 2025

Journal Name

Iraqi Journal Of Applied Physics

Structural and Morphological Characteristics of PEKK-Coated Titanium Disks by RF Magnetron Sputtering for Implant Osteointegration Application

Aseel M.

Shorouq M.

Bayan S.

Thekra I.

Zahraa S.

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Pure grade II titanium disks were coated with a thin coating of polyetherketoneketone (PEKK) polymer by RF magnetron sputtering using either nitrogen or argon gas. Sputtering technique was employed at 50 W for one hour at 60°C with continuous flow of nitrogen or argon gas. Field-emission scanning electron microscopy (FE-SEM) showed a continuous, homogeneous, rough PEKK surface coating without cracks. In addition, cross-sectional FE-SEM revealed an average coat thickness of 1.86 μm with argon gas and 1.96 μm with nitrogen gas. There was homogenous adhesion between the coating layer and substrate. The elemental analysis of titanium substrate revealed the presence of carbon, titanium, and oxygen. The RF magnetron sputtering with argon or ni

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