Search results

Al-Dhabi, M.
El-Bahy, S.M.T.
Abd El-sadek, Randa A.
El-Dek, Mohamed M.
El-Fahaam, Mohamed N.

Stress x strain curves of the QC-Al composites.
Mechanical properties of Al/QCp composites.
Inset: detail of a QC particle in the Al matrix.
Koster et al. reported that Al-Cu-Fe quasicrystal phase may react with Al phase to form the ω phase during heat-treatment [10].
El Kabir: Journal of Alloys and Compounds (2009), article in press [3] Fei Tang, Iver E.

The metallic samples of Al, brass and Cu were used as working electrode.
Fig. 1 Ecorr vs exposure time of the Al, brass and Cu samples E and I Transients.
Fig. 3 Corrosion rate (obtained by Rn) vs exposure time of the Cu, brass and Al.
Localization index for Cu, brass and Al as a function of time.
El-Shazly and A.

Geometrically Nonlinear Free Axisymmetric Vibrations Analysis of Thin Circular Functionally Graded Plates El Kaak Rachid1, a, El Bikri Khalid1, a and Benamar Rhali2,b 1 Université Mohammed V-Souissi, Ecole Normale Supérieure de l’Enseignement Technique, Rabat, Département de Génie Mécanique, LaMIPI, B.P.6207, Rabat Instituts, Rabat, Morocco. 2 Université Mohammed V-Agdal, Ecole Mohammadia d’ingénieurs, LERSIM, B.P. 765, Agdal, Morocco.
Allahverdizadeh et al. [2] investigated the nonlinear free and forced vibration of thin circular functionally graded plate.
Malekzadeh et al. [11] discussed the in-plane free vibration of functionally graded circular arches with temperature-dependent properties under thermal environment.
El Kadiri, R.
El Bikri, R.

Brunkard et al. [3] assessed the relationships between long-term El Niño Southern Oscillation (ENSO)-related weather and microclimate on dengue incidence by using ARIMA with exogenous input (ARIMAX).
Using these approaches, dengue fever was strongly correlated with the occurrence of El Niño weather pattern.
[10] Xu HY, et al.
Meteorological factors and El Niño Southern Oscillation are independently associated with dengue infections.
[22] Li C, et al.

Now this Al 6061 alloy and the pre heated graphite particles were mixed in the crucible.
Chemical composition of the Al 6061 alloy is shown in table 1.
Table 1: Chemical composition of Al 6061 alloy Mg Cu Cr Zn Fe Si Mn Ti Al 0.89 0.21 0.25 0.11 0.25 0.60 0.04 0.1 Balance Conclusion From the experimental works a designer can get the following valuable information 1.
As compared to Al 6061 alloy SEM micrograph of worn surfaces the Al 6061- 5wt % has less patches because of the influence of graphite acted as a solid lubricant.
El Bradie, M.S.J.

The microstructure of the as-cast specimens mainly consisted of matrix-α (Al) and grain boundary (GB)-eutectic phase (α-Al + Mg(Zn,Cu,Al)2).
It is a heat treatable Al-Zn-Mg-Cu alloy.
Therefore, most of bright GB phases should be quaternary Mg(Zn,Cu,Al)2 phase in that some Al and Cu atoms have dissolved in the η-phase and form the same crystallographic lattice constant as MgZn2, as reported by Deng et.al [4].
Conclusions From the above study and experimental results it can be concluded that as-cast samples consist of two main phases: a non-dendritic grain structure of α-Al phase and grain boundary eutectic phase (α-Al+ Mg(Zn,Cu,Al)2).
Copley, E.L.

El-Sayed et al. [26] reported synthesis and antimicrobial evaluation of several quinoline and pyrimidoquinoline derivatives.
El-Sayed, E.
El-Sayed, B.A.
Al-Bassam, M.E.
El-Abadelah, F.

To consider exchange and correlation effect to the dielectric function, the local-field correction function proposed by Farid et al is employed in the present study.
For describing the electron-ion interaction we have used the potential proposed by Jivani et al [6-13], which is of the form:
In this study, the exchange-correlation function proposed by Farid et al [14] is employed to study various properties of HgX systems investigated by pseudopotential method.
El Haj Hassan, B.
Al Shafaay, H.

El-Riedy, A.
Deng, et al.
Yuan, et al.
Yuan, et al.
Chen, et al.