z.ahmed

ALZAHRAA ALI ABD ELMOULA

Lecturer - teacher

Faculty of science

Address: جامعة سوهاج- كلية العلوم-قسم الفيزياء

0

Like

Dr. Alzahraa Ali  AbdElmoula has an extensive experience in optical and electrical properties of the thin films were investigated by UV–VIS spectrophotometer.

The reseacher  has  skillful in using thin film preparation by DC magnetron sputtering technique and she has an experince in tribological properties of ceramic materials such as hardness measurments, roughness, wear resistance and electrochemical properties (corrossion resistance).


2018-10-02 08:10:55 | Keywords sputtering, Rf magnetron, TiO2 Thin Films, optical properties,
Optical Properties of Nanocrystalline/Amorphous TiO2 Thin Film Deposited by rf Plasma Magnetron Sputtering
This work is a part of serious experimental efforts established on constructing multilayers based on TiO2 for industrial use in optical devices. Recognizing the structure and optical features of TiO2 single layer is very significant in designing optical devices and in constructing multilayers based on TiO2 layer for probable industrial requests. In this regard, rf plasma magnetron sputtering was employed ... Read more

2018-10-01 06:57:25 | Keywords roughness, wettabili, AISI316L, Rf plasma,
Mechanical and gamma ray attenuation properties of N316L steel treated by rf plasma as a nuclear material
The effect of plasma surface engineering on average surface roughness, wettability and gamma ray attenuation properties of AISI316L standard steel sample were carried out. The results showed an increase in surface roughness accompanied with an increase in the surface energy and a decrease in the contact angle of N316L sample treated by plasma carbonitriding. The experimental measurements of gamma ray ... Read more

2018-09-30 11:24:45 | Keywords AISI304L, H2/N2 rf plasma, mechanical performance,
Radiation shielding, mechanical and tribological properties of treated AISI304L using H2/N2 rf plasma
A controlled mixture of hydrogen to nitrogen gases 1:1 was used to investigate the role of rf Plasma surface engineering a standard austenite stainless steel AISI304L prepared by electro slag re melting process for nuclear power plant applications. The rf plasma surface engineering process was performed for half an hour inside a quartz plasma reactor tube at stable gas pressure ... Read more

2018-09-30 11:14:36 | Keywords cooling rate plasma nitriding,
Effect of Cooling Rate on The Plasma Nitriding Process of 304 Austenitic Stainless Steel
The aim of this work is to study the influence of the cooling rate on the properties of the modified surface layer of AISI 304 steel after rf plasma nitriding. The nitrided samples were characterized by glow discharge optical spectroscopy, x-ray diffraction, optical microscopy, scanning electron microscopy and Vickers microhardness measurements. The results revealed that microstructure, nitriding rate and surface ... Read more

2018-09-27 10:16:43 | Keywords PLASMA TREATMENT,
Effect of Plasma Surface Treatment on AISI 316LStainless Steel for In-Core Applications of Nuclear Reactors
The effect of nitrogen plasma surface treatment on the structural, mechanical, and neutron attenuation properties of AISI316L stainless steel was carried out. The mechanical and rate of plasma treatment results show that the treated N316L stainless steel has superior wear and micro-hardness values than that of the untreated one AISI316L.The experimental measurements of total slow neutron removal cross section Σ ... Read more