The present work encompasses the development of a new method of cooling plate casting process by changing the inlet and outlet of water flow which is different from the conventional cooling plate casting process. This process consists in pouring the molten metal at temperature close to the liquid line in an inclined cooling plate. Pouring temperature and inclination angles have effect on microstructure. The following variables have been used in this work: pouring temperatures of (750, 800. and 850 ᵒ C), tilt angles of (30 ᵒ , 40 ᵒ , 50 ᵒ , and 60 ᵒ ), and Mg additive of (1%, 5%) with constant cooling length (380mm). After the melt flow down cooling plate, the melt becomes a semi-solid slurry at the end of the plate. Optical microstructure test shows that, the pouring temperature and tilt angle affect the size. Grains shape decreases with decreasing of tilt angles and with decrease pouring temperature as well as Mg addition also has the same effect on Al-Mg microstructure. X-Ray diffractography for Al-Mg alloys shows the appearance of peaks of intermetalic compound and different phases of (Al 3 Mg 2 , Al, δAl 2 O 3 )and for Al-1%Mg has a phases (Al Mg , ,MgO ),while SEM picture shows , Al 3 Mg 2 phase as dark region and α-Al as light region for Al-5%Mg, and Al Mg phase for Al-1%Mg.

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This article produced porous materials by using a simple and easy method which is a powder metallurgy. This search studying an experimental fulfillment on the thermal conductivity, apparent porosity, and Diametrical Strength of porous copper-zinc manufactured by the convert to carbon since firing process and combined with the oxygen cause to CO2 gas that rises up to air and leaves the number of pores. the basic metals are Cu and Zn pure powder metals with a different ratio (10-20-30)% of natural leaves especially palm leaves which is widely found in our natures, Cu fine powder (220 µm) has purity 99.5% as a matrix material to prepared composite material with ratio 80% of material total weight, 500g, Zn fine powder added as 20% from material total weight, the Zn metallic powder has purity 99.5%. The Zn powders have size particle less than200 m. Grounded palm leaves were cut to small parts then milled by using electrical mortar to get a fine powder which have a green size (less than 0.75 m) which result by sieving instruments. The results show various values in each test. In physical testing the apparent porosity from pure \Cu-Zn has 0.11%,10%0.187%,20% 0.22,30%0.32%,where the higher value for samples of palm leaves which has presence in a higher value in 30% of palm leaves, the others tests in thermal conductivity and diametric strength, in thermal conductivity have(5 W/m.k for pure material, in 10% 0.65 W/m.k, in20% 0.38 W/m.k,in 30% 0.2 W/m.k)for Cu-Zn-P.L composites these investigations show a decreasing ingredients especially in 30%, which have the lower value with the same effect in Diametrical Strength in pure samples has 25Mpa,in 10% has 10 Mpa, in 20%6Mpa,in30% 2.5Mpa.Generally the Optimum properties of Cu-Zn-P.L additives are attained with least porosity content. The existences of porosity decline the Diametrical Strength, thermal conductivity. Thus the aim of this study was to create porous composites metal MMC with has high attractive as an insulating material, and porous composites with natural additives.