Abstract
This research studies the effect of adding micro, nano and hybrid by ratio (1:1) of (Al2O3,TiO2) to epoxy resin on thermal conductivity before and after immersion in HCl acid for (14 day) with normality (0.3 N) at weight fraction (0.02, 0.04, 0.06, 0.08) and thickness (6mm). The results of thermal conductivity reveled that epoxy reinforced by (Al2O3) and mixture (TiO2+Al2O3) increases with increasing the weight fraction, but the thermal conductivity (k) a values for micro and Nano (TiO2) decrease with increasing the weight fraction of reinforced, while the immersion in acidic solution (HCl) that the (k) values after immersion more than the value in before immersion.
Highlights
The result of the great scientific and technological development in the world, needed to find new alternative materials of metals and alloys which are lightweight materials with high mechanical specifications and give the durability and flexibility of material in addition that resistance to different environmental conditions and use in industrial products like airplanes, cars and other engineering designs, so been manufactured of composite material [1].Aluminum oxide is a chemical composite has the formula Al2O3, known as Alumina, there is in the form of two types differ from each other in the crystal structure, and differ in their physical and chemical properties as well as applications, namely the pattern of alpha α and gamma γ
Titanium dioxide take at least eight structures alongside three structures found in nature and is the Rutile, Anatase and Brookite, TiO2 is characterized by being a source of distracting light as a result of the coefficient of higher refractive index, stability and regular absorption and the low relative to visible light which is nontoxic and safe and is used in the paint, where he works the protective coating of chemical weathering and dissolution of photo synthesis organic links
The results showed that the thermal conductivity increase with weight fraction increased of titanium dioxide nanoparticles alumina nanoparticles composite and hybrid
Summary
The result of the great scientific and technological development in the world, needed to find new alternative materials of metals and alloys which are lightweight materials with high mechanical specifications and give the durability and flexibility of material in addition that resistance to different environmental conditions and use in industrial products like airplanes, cars and other engineering designs, so been manufactured of composite material [1].Aluminum oxide is a chemical composite has the formula Al2O3, known as Alumina, there is in the form of two types differ from each other in the crystal structure, and differ in their physical and chemical properties as well as applications, namely the pattern of alpha α and gamma γ. The experimental results show that the thermal conductivity is increased with the increasing of thickness of layers and with the weight ratio of TiO2.
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