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Online since: March 2006
Authors: M.L.N.M. Melo, R.G. Santos
Evaluation of Permeability of Interdendritic Channels for Al-Cu and
Sn-Pb Alloys
M.
In this paper a model developed by the authors is used to predict the permeability in directional solidification of Al-Cu and Sn-Pb alloys.
Piwonka and Flemings [3] carried out the first measurement of permeability forcing liquid lead throughout solidifying Al-4.5 wt pct Cu.
%Pb the secondary dendrite arms spacings obtained by Rocha et al. were used.
For the Sn-Pb alloys are adopted the equations proposed by Rocha et al..
In this paper a model developed by the authors is used to predict the permeability in directional solidification of Al-Cu and Sn-Pb alloys.
Piwonka and Flemings [3] carried out the first measurement of permeability forcing liquid lead throughout solidifying Al-4.5 wt pct Cu.
%Pb the secondary dendrite arms spacings obtained by Rocha et al. were used.
For the Sn-Pb alloys are adopted the equations proposed by Rocha et al..
Online since: April 2014
Authors: Si Rong Yu, Hong Chao Chu, Cui Xiang Wang, Qi Lou
Yu [1] investigated the silicon dissolution and interfacial characteristics of Si/Al composites through the thermodynamic calculations.
Patel [2], thermodynamic calculations had been carried out to design alloys based on the Al–Mg–Si system for SSM processing via the ‘rheo-route’.
%Al, 0.62wt.
Yu, Silicon dissolution and interfacial characteristics in Si/Al composites fabricated by gas pressure infiltration, Materials Chemistry and Physics, 139 (2013) 783-788
Abou El-khair, M.
Patel [2], thermodynamic calculations had been carried out to design alloys based on the Al–Mg–Si system for SSM processing via the ‘rheo-route’.
%Al, 0.62wt.
Yu, Silicon dissolution and interfacial characteristics in Si/Al composites fabricated by gas pressure infiltration, Materials Chemistry and Physics, 139 (2013) 783-788
Abou El-khair, M.
Online since: March 2020
Authors: Ikram El Abbassi, Cheikh Sidi Ethmane Kane, A. Moumen Darcherif, Mamoudou Ndongo, Labouda Ba
According to the work of Bederina and al [18], wood chips can influence the thermal conductivity of sand concrete.
S.bodian and al [22], also studied the thermomechanical characteristics of fired and uncooked clay bricks by mixing with laterite with percentages ranging from 0 to 50%.
Liu and al. using the non-linear finite element method.
El Marhoune, R.
El Marhoune, R.
S.bodian and al [22], also studied the thermomechanical characteristics of fired and uncooked clay bricks by mixing with laterite with percentages ranging from 0 to 50%.
Liu and al. using the non-linear finite element method.
El Marhoune, R.
El Marhoune, R.
Online since: July 2020
Authors: Ibrahim Rawa, Radhi M. Chyad, Aseel Ibrahim Mahmood
The samples used in this work using the Tigris River water that supported from al- Wathba lab. water projects of the Baghdad water directorate at Baghdad- Iraq.
Experimental Work The first part is prepared for the samples used in this work using the Tigris River water that supported by al- Wathba lab. water projects of the Baghdad water directorate at Baghdad- Iraq, the ferrofluid (Iron oxide magnetic nanoparticles (magnetite, Fe3O4), 5nm particles size, superparamagnetic, spherical shape, Concentration: 5 mg/ml, Refractive Index: 1.337, supplied in ddH2O), which was from CYTODIAGNOSTICS – Canada.
El-Amin, A.
Schulze, E.L.
Krauss, Altenburger et al., Future water quality monitoring: improving the balance between exposure and toxicity assessments of real-world pollutant mixtures, Environ Sci Eur,(2019) 31:12
Experimental Work The first part is prepared for the samples used in this work using the Tigris River water that supported by al- Wathba lab. water projects of the Baghdad water directorate at Baghdad- Iraq, the ferrofluid (Iron oxide magnetic nanoparticles (magnetite, Fe3O4), 5nm particles size, superparamagnetic, spherical shape, Concentration: 5 mg/ml, Refractive Index: 1.337, supplied in ddH2O), which was from CYTODIAGNOSTICS – Canada.
El-Amin, A.
Schulze, E.L.
Krauss, Altenburger et al., Future water quality monitoring: improving the balance between exposure and toxicity assessments of real-world pollutant mixtures, Environ Sci Eur,(2019) 31:12
Online since: July 2014
Authors: M. Ramesh, A. Kumaravel, C. Kumaari, T. Karthikeyan
The effects of applied load on wear behavior of Al- quarry dust particle composite disc sliding against automobile brake material
M.
Sample Preparations The Al- 5% wt. of quarry dust composites are produced by the bottom pouring stir casting techniques.
It can be seen more over Al and considerable amount of Si, Fe,Ba,Ca, Cu, Zn constituents present in the brake lining. 7.
[6] A.Daoud,M.T.Abou El-khair: Wear and friction behavior of sand cast brake rotor made of A359-20 vol% SiC particle composites sliding against automobile friction material,Tribology International 43 (2010), p 544-553
Sundararajan: Correlation between the characteristics of the mechanically mixed layer and wear behavior of aluminum, Al-7075 Alloy and Al-MMCs, Wear 245 (2000), p 22-38
Sample Preparations The Al- 5% wt. of quarry dust composites are produced by the bottom pouring stir casting techniques.
It can be seen more over Al and considerable amount of Si, Fe,Ba,Ca, Cu, Zn constituents present in the brake lining. 7.
[6] A.Daoud,M.T.Abou El-khair: Wear and friction behavior of sand cast brake rotor made of A359-20 vol% SiC particle composites sliding against automobile friction material,Tribology International 43 (2010), p 544-553
Sundararajan: Correlation between the characteristics of the mechanically mixed layer and wear behavior of aluminum, Al-7075 Alloy and Al-MMCs, Wear 245 (2000), p 22-38
Online since: June 2010
Authors: Abdul Razak Daud, M.C. Isa, M.Y. Ahmad, M. Daud
Fig. 1 shows alloy Al-1 gives more noble value of OCP, alloy Al-3 recorded more
active value of OCP, while alloy Al-2 shows value of OCP between those of alloy Al-1 and alloy
Al-2.
After polarization process, the corrosion potential (ECorr) of Al-1 is found to be more positive than those of Al-2 and Al-3, while that of Al-2 is slightly electropositive than that of Al-3.
Capacitance value of Al-3 alloy is much higher than Al-2 and Al-1, implies that more corroding area on the Al-3 alloy surface.
The corrosion resistances of Al-Zn alloy in natural chloride solution decrease with the following order: Al-1 > Al-2 > Al-3.
El-Mahdy, A.
After polarization process, the corrosion potential (ECorr) of Al-1 is found to be more positive than those of Al-2 and Al-3, while that of Al-2 is slightly electropositive than that of Al-3.
Capacitance value of Al-3 alloy is much higher than Al-2 and Al-1, implies that more corroding area on the Al-3 alloy surface.
The corrosion resistances of Al-Zn alloy in natural chloride solution decrease with the following order: Al-1 > Al-2 > Al-3.
El-Mahdy, A.
Online since: July 2011
Authors: X.F. Wang, Kai Ju Zhang
Experimentally, in the case of no phase separation, Makino et al.[2] reported the maximum Mg composition concentration(x) in MgxZn1-xO ternary alloys grown by pulsed-laser deposition is 0.33 while the Takagi et al.[3] reported that the available maximum magnesium composition concentration in the single-phase wurtzite MgxZn1-xO ternary alloys is up to 0.51.
Experimentally, in the case of no phase separation, Makino et al.[2] reported the maximum Mg composition concentration(x) in MgxZn1-xO ternary alloys grown by pulsed-laser deposition is 0.33 while Ohtomo et al.[11] have reported a solid solubility of 0.35 of MgO in ZnO in pulsed laser deposited thin films, Thin films with x up to 0.20 exhibited a preferred c-axis orientation, whereas for x>0.20, the patterns were similar to that of bulk ZnO.[12] Tanaka et al.[1] have proposed the use of a high-quality ZnO buffer layer to firmly fix the crystal structure of the layer successively grown on it to wurtzite and, as a result, the growth of single-phase wurtzite MgxZn1−xO with magnesium content x of as high as 0.51 with band-gap energy of 4.45 eV has been reported.[3] These results are all in the region we calculated as shown in Figure 2.
Lett., 69,2701(1996) [6] Takayama T., Masaaki, Kunio I., et al., Jr., J.
El Haj Hassan, Computational Materials Science 40 (2007) 66–72 [9] Karpov S.
Experimentally, in the case of no phase separation, Makino et al.[2] reported the maximum Mg composition concentration(x) in MgxZn1-xO ternary alloys grown by pulsed-laser deposition is 0.33 while Ohtomo et al.[11] have reported a solid solubility of 0.35 of MgO in ZnO in pulsed laser deposited thin films, Thin films with x up to 0.20 exhibited a preferred c-axis orientation, whereas for x>0.20, the patterns were similar to that of bulk ZnO.[12] Tanaka et al.[1] have proposed the use of a high-quality ZnO buffer layer to firmly fix the crystal structure of the layer successively grown on it to wurtzite and, as a result, the growth of single-phase wurtzite MgxZn1−xO with magnesium content x of as high as 0.51 with band-gap energy of 4.45 eV has been reported.[3] These results are all in the region we calculated as shown in Figure 2.
Lett., 69,2701(1996) [6] Takayama T., Masaaki, Kunio I., et al., Jr., J.
El Haj Hassan, Computational Materials Science 40 (2007) 66–72 [9] Karpov S.