Dr. Mohammed Hammad Mohammed Fawey

Lecturer - Lecturer

Faculty of science

Address: Physics Department - Faculty of Science - Sohag University, Sohag, Egypt



Publications Which contain the keyword: Microstructure

Microstructural and morphological characterisation of ancient bronze coins from the archaeological site of Al-Fustat city in Egypt
This paper deals with the microstructural and morphological characterization of some ancient bronze coins excavated in the Al-Fustat archaeological site. Al-Fustat is the first capital of Egypt in the Islamic civilization. It was built by Amr Ibn Al-As in the year 641 AD on the east bank of the Nile and replacing ancient Memphis to the west. In the ancient ... Read more

Duplex treatment of 304 AISI stainless steel using rf plasma nitriding and carbonitriding
Surface of 304 AISI austenitic stainless steel has been modified using duplex treatment technique of nitriding and carbonitriding. A thick modified nitrided layer, of approximately 20 μm, has been achieved when rf inductively coupled plasma was adjusted at 450 W for processing time of only 10 min. After performing the nitrided layer, the nitrided samples were carbonitrided using the same ... Read more

Duplex treatment of AISI 304 austenitic stainless steel using rf nitriding and dc reactive magnetron sputtering of titanium
In this work, duplex treatment has been carried out using radio frequency (rf) plasma nitriding process and direct current (dc) magnetron sputtering of titanium. Nitriding of AISI 304 stainless steel, using rf plasma technique, created a thick modified layer of approximately 20 μm for short plasma processing time of 10 min. After nitriding process, a thin titanium nitride film has ... Read more

2018-09-27 11:43:45 Keywords Sb–Sn–O films, Microstructure,
Sb-doping effects on optical and electrical parameters of SnO2 films
Undoped and Sb-doped SnO2 films ∼100 nm thick have been deposited by electron beam evaporation from bulk samples prepared using sintering technique. Either undoped or Sb-doped SnO2 films are nearly amorphous, resistive and transparent. With increasing Sb content, the resistivity slightly decreases and then increases with further addition of Sb, which acts as donor and/or acceptor impurity atom in the ... Read more

  • «
  • 1
  • »