In this research we are Studying the improvement of the thermal
conductivity of The 6063 aluminum alloys by Alloy elements
Adding such as (Boron & Titanium) .
In this Study we used (6063) aluminum alloy as a base metal
because it using of the fab
rication of Central Processing Unit(CPU)
heat sinks . First, we brought casting mold. We melted Aluminum
after weighting it ,and we adding Alloy elements (Boron &
Titanium), we selected the temperatures of the furnace at 1000 ℃
,for period 60 minute.
In this research the effect of Nickel addition by various
percentages on the mechanical properties of
Aluminum-Copper alloy was studied. After
adding Nickel the alloys was artificially aged for different
times, and the effect of Nickel on
the re
sponse of alloy to precipitation hardening was studied.
Where the effect of Nickel on the microscope structure was
studied, and on the mechanical properties as hardness, tensile
strength, yield strength and elongation. The results showed that
the increase of Nickel improve this properties, where the highest
values were obtained when the Nickel's percentage was 5% Wt.
The effect of artificial aging on the revolution of mechanical
properties of aluminum alloy 6063-T5 has been studied. Samples of
aluminum profiles which are formed by extrusion process have
chosen, then studied the effect of artificial aging on th
e hardness
and mechanical properties by applied two aging stages and many
stages comparing to the traditional way which be done in one stage.
Powder metallurgy is actually a growing field of great interest both
scientifically and technologically. It is, therefore highly important to grant
special interest to the development of scientific, basic and technological
activities related to powder metallurgy in Syria.
In the present work, batch electrocoagulation experiments were carried out
to evaluate the removal of polycyclic aromatic hydrocarbon (PAHs) from water
using aluminum electrodes. The effects of initial pH, current density,
electrolysis time, initi
al concentration of PAHs, electrolyte type, and electrolyte
concentration were investigated to achieve the optimal removal efficiency. The
results indicated that the electrocoagulation utilizing the aluminum, as anode
and cathode, was an efficient tool in the reduction of these contaminants. The
treatment process was found to be largely affected by the current density and
the initial composition of water. The removal rate was significantly increased
using NaCl as an electrolyte where indirect oxidation by hypochlorite forming
later during the treatment was occurred. The results demonstrated that the
technical feasibility of the electrocoagulation as a possible and reliable
technique for the treatment of PAHs contaminants in water.
Mixtures of ammonium acetate and ammonium tartrate in the presence of
benzyl alkyl dimethyl ammonium chloride (benzalkonium chloride) were used
for sealing sulphuric acid anodized aluminium.
Mixtures of ammonium acetate and ammonium tartrate exhib
ited
synergistic sealing effect, which offered excellent durable corrosion protection
to the surface coating formed by anodizing the aluminium alloy. Moreover the
synergistic effect of benzalkonium chloride with tartrate offered boehmite free
sealed surface coating.
Quality and durability of the sealed aluminium oxide films have been
assessed using standard control sealing quality tests and well-known
salt- spray (fog) test (ASTM B 117-97).
