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However, Criado et al. [5] think that bands at 947 and 503 cm-1 represent the internal vibrations of [SiO4]4- and [AlO4]5- tetrahedra.
The composition of slag glass consists mainly of O, Si, Al, Mg and Ca, among which Si and Al exist as network forming cations, and Mg and Ca are network modification cations.
El-Hemaly, E.
Al-Wakeel, S.
El-Korashy, P.

In addition, El hadari et al. [6] also reported that the tiny eutectic structures and fine round α-Al phases are favorable for better tensile strength and other microstructural features,such as composition of the Copper-rich phases and Fe-rich intermetallic compounds, can play an important role in tensile behavior.
Experimental Method In this study, commercial Al-10Si alloy with Cu addition 1, 3, 5 (wt.%) was employed, The Al-10Si ingot, cut into small pieces was melted in a crucible foundry, and then the liquid Al-10Si was added Ingot Cu .
The formed of intermetallic θ-Al2Cu phase indicate Cu dissolve into matrix α-Al despite contain of Cu lower than sollubility limits of Al.
Microstructure of (a) Al-10Si-1%Cu (b), Al-10Si-3%Cu and (c) Al-10Si-5%Cu Figure 3.
(a) Tensile strength of Al-10Si-xCu (b) Strain of Al-10Si-xCu Figure 6.

Fig. 1: XRD chart of the 8006 Al-alloy with different degree of deformation (%). 2.
Fig. 2: Positron lifetime spectra for 8006 Al-alloy with zero% and 39.1% deformation.
Fig. 3: The mean lifetime as a function of thickness reduction of 8006 Al-alloy. 3.
Fig. 4: Vickers hardness variation of 8006 Al-alloy as a function of thickness reduction.
Abd EL-Naser and A.

In this point of view, the Cu-0.6% Al2O3 composites can be a potential candidate material of spot welding electrode benefiting its excellent high temperature strength. 0 100 200 300 400 500 0 200 400 600 800 1000 Temperature/ ℃ Strength/MPa t ensi l e st r engt h yi el d st r engt h Fig. 2 Relationship between strength and testing temperature of Cu-0.6% Al2O3 composites Figure 4 shows the relationship between the plasticity and temperature of the Cu-0.6% Al2O3 composite.
-L Li, et al: Mil.
Zhang, et al: Powder Metall.
Brocchi，et al: Mater.
Zhang, et al:Mineral Metall.

[7] Hino, et al.
[8] Chen, L., et al.
[9] Xd, A , et al.
[11] Su, C., et al.
H., et al.

According to Files et.al (1997), the MVL functions can be functionally decomposed using the decision diagrams [6].
The DD packages as discussed in the paper by Dreschler et.al (1999) is based on recursive synthesis operations.
Miller et.al (2002) examined the constructions of MDDs.
Jiang et.al(2003) studied the optimum functional evaluation problem for a multi valued relation.
Abd-El-Barr, B.A.B.

%Al-1at.
It has been widely recognized that when the Al2O3 scale grows by both outward Al and inward O diffusion, Al and O should react within the oxide scale.
%Cr-8at%Al-0.5at.
El Messki: Applied Surface Science, Vol. 229 (2004), p. 233-241 [16)] R.
El Kadiri, R.

Howard, et al: J.
Yannas, et al: Biomaterials Vol. 25 (2004), p. 1077 [4] E.L.
Nauman, et al: Biomaterials Vol. 24 (2003), p. 3805 [5] S.
El-tahlawy, M.A.
El-bendary, A.G.

Azuraida et al. (2015) [5] is also in agreement to this reasoning and confirmed by the data shown in the FTIR spectra.
According to Ruller et al. (1991) [6], bombardment of gamma rays into the glass sample caused the formation of void in the glass network.
El-Alaily, R.M.
El-Aal, O.W.
El-Amir, J.

The study of erbium and neodymium oxides in tellurite glass had been done by El-Mallawany et al. which found that the holmium oxide has the highest refractive index of known glass [3].
El-Mallawany, Electronic polarizability and third-order nonlinearity of Nd3+ doped borotellurite glass for potential optical fiber, Materials Chemistry and Physics 236 (2019) 121812
El-Mallawany, M.
El-Mallawany, G.
El-Mallawany, M.H.M.