Search results

[22] Fouda AS, Al-Sarawy AA, Ahmed FS, El-Abbasy HM., Corrosion inhibition of aluminum 6063 using some pharmaceutical compounds.
[24] Abdallah M, Zaafarany I, Al-Karanee SO, El-Fattah AA., Antihypertensive drugs as an inhibitor for corrosion of aluminum and aluminum silicon alloys in aqueous solutions.
[35] Abdallah M, Zaafarany I, Al-Karanee SO, El-Fattah AA., Antihypertensive drugs as an inhibitor for corrosion of aluminum and aluminum silicon alloys in aqueous solutions.
[54] Abd-El-Nabey BA, Goher YM, Fetouh HA, Karam MS., ‘Anticorrosive Properties of Chitosan for the Acid Corrosion of Aluminium’.
Al-Shafey, and A.

El Kammouni acknowledges the MAEC/AECID grant.
Zvezdin, et al, J.
Zhukova, et al, J.
Stoian, et al, J.
Bahiana, et al, J.

The preparation of manganese oxide-modified natural clay (MnO-NC) was carried out according to Al-Deg et al. [10].
El-Desoky, K.M.
El-Moselhy, A.
Abou El-Naga, L.I.
Al-Degs, M.F.

Tong et al
The reaction rate Kp is smaller than that got by Barsoum et al. about 2-3 order of magnitude [7].
Chem. 2000, (28), p.201 [2] P Finkel, M W Barsoum, T.El-Raghy: J Appl.
Ho-Duc, Tamer El-Raghy: J. of Alloys and Compounds, 2003, 50, p.303 [5] G.
El-Raghy, L.

Their nominal compositions are 9.22 wt % Al, 0.72 wt % Zn, 0.418 wt % Mn, and balance Mg. 2.
The EDS microprobe analysis in fig 1(b) shows that the Mo coating may contains O, Mo, Mg, Al.
Deyab and Abd El-Rehim [12] have reported that Mo6+ in MoO42- undergo reduction to form Mo4+ during film formation.
N.El Mahallawy,A.
Abd El-Rehim: Electrochim.Acta.Vol.53 (2007), p.1754-1760

Initially, a HF dip was performed to clean and passivate the surface, followed by a blanket e-beam metal deposition (Ti/Al 20/100 nm).
The metal was then patterned by etching the aluminum in Transene Al Etch Type A with a photoresist mask, followed by a buffered oxide etch (BOE) of the Ti layer.
Furthermore, low temperature I-V measurements have shown carrier freeze-out at ~100K, consistent with the freeze-out temperature of Al-doped p-type SiC.
EL was not observed in the EG/n-SiC system under any bias condition.
False color EL image of EG/p-SiC under high forward bias.

Conventional low-alloyed TRIP steels usually contain only C, Mn, and Si, but additional alloying elements such as Al and P have been used in recent years to improve galvanizability and mechanical properties [1].
Ryu et al. [6], on the other hands, argued that partitioning of strain between phases, which closely relies on the homogeneity of microstructure, also plays an important role as another factor in determining the mechanical stability of retained austenite.
Change of tensile strength (TS), yield strength (YS), elongation (EL), TS×EL, amount of retained austenite (Vγ), and its carbon concentration (Cγ) in CMnSi and CMnSiP TRIP steels with austempering time.
CMnSiP steel generally shows poorer mechanical balance (TS×EL) than that of CMnSi steel (except at 15 min-austempering).
According to Ryu et al.’s study [6], strain partitioning is affected by microstructure and it strongly influences stability of retained austenite.

Effect of Nature Aging on Positron Lifetime Spectroscopy in Casting and Wrought Al-alloys M.
Badawi* Faculty of Science, Physics Department, El-Minia University, Egypt.
Introduction The effect of plastic deformation upon positron annihilation in metals was first reported by Dekhtyar et al. [1], Berko et al. [2], Hautojarvi [3] and Cotterill et al. [4].
Sampath et. al: Materials Science Forum, 217-222 (1996) 747
El-Sayed: Aluminum Transactions, 1-2 (2000) 91

Using equation (4) and the bi-quadrati� isoparametri� approximation prop osed in this work, we �an write: 1 h S n�el l s X k =1 Z 
k U �S ij bj (x) d
k � = 1 hS n�el l s X k =1 2 6 4 Z 
k U� Nd
k 3 7 5 ak (6) where, N is the matrix of bi-quadrati� Lagrange shap e fun�tions and ak = nuS d ; uR o T is the ve�tor of no dal displa�ements at �ell k .
In this table, SIFs are �ompared with those rep orted in Belhouari et al. [19 ℄.
Analyti�al metho ds for designing �omp osite repairs.
Communi�ations in Numeri�al Methods in Engineering, 13: 397-405, (1997)
International Journal for Numeri�al Methods in Engineering, 42(2): 195-217, (1998)

El Gharbi2,b 1,2 Laboratory of Thermodynamics and Energetic of Systems Faculty of Physics USTHB BP. 32 El-Alia Bab Ezzouar 16 111 Algiers (Algeria) a) abenzaoui@mail.com , b) Najla04@yahoo.fr Keywords: efficiency in energy use, cooling production, global warming, atmosphere cleaning, energy use optimization, refrigerants Abstract.
Alam, et al.: Int.
Akahira et al.: Applied Thermal Eng.
M'baye et al.: Applied Thermal Eng.
LE Goff et al., A thermal inventory of sorption heat pumps based on the exergy- multipole concept.