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Aluminium is a lightweight, silvery metal.

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Introduction

Materials Presentation Aim I have decided to investigate about a common well-used material in everyday life all over the world, Aluminium. Introduction. In 1808 Sir Humphrey Davy proposed the name ALUMIUM for the metal. This rather unwieldy name was soon replaced by ALUMINUM and later the word ALUMINIUM was adopted by the International Union of Pure and Applied Chemists in order to conform with the "ium" ending of most elements. By the mid-1800s both spellings were in use, indeed Charles Dickens commented at the time that he felt both names were too difficult for the masses to pronounce! Aluminium is the most common metallic element on earth, making up about 8% of the earth's crust, concentrated in the outer 16 km. Only oxygen and silicon are more abundant. Evolution of life and human civilisation has developed in an aluminium rich environment. It is the most widely used non-ferrous metal today. Aluminium never occurs in its metallic form in nature. It occurs in various forms in most rocks and soils and is also present in gemstones like topaz and garnet. It can be found in vegetation and in all of the earth's water. ...read more.

Middle

* 1808 Sir Humphry Davy (Britain) established the existence of aluminium and named it. * 1821 P. Berthier (France) discovers a hard, reddish, clay-like material containing 52 per cent aluminium oxide near the village of Les Baux in southern France. He called it bauxite, the most common ore of aluminium. * 1825 Hans Christian Oersted (Denmark) produces minute quantities of aluminium metal by using dilute potassium amalgam to react with anhydrous aluminium chloride, and distilling the resulting mercury away to leave a residue of slightly impure aluminium. * 1827 Freidrich W�hler (Germany) describes a process for producing aluminium as a powder by reacting potassium with anhydrous aluminium chloride. * 1845 W�hler establishes the specific gravity (density) of aluminium, and one of its unique properties - lightness. * 1854 Henri Sainte-Claire Deville (France) improves W�hler's method to create the first commercial process. The metal's price, initially higher than that of gold and platinum, drops by 90% over the following 10 years. The price is still high enough to inhibit its widespread adoption by industry. * 1855 A bar of aluminium, the new precious metal, is exhibited at the Paris Exhibition. * 1885 Hamilton Y. ...read more.

Conclusion

* Alloys are of vital importance in the construction of modern aircraft and rockets * Aluminium, evaporated in a vacuum, forms a highly reflective coating for both visible light and radiant heat. These coatings soon form a thin layer of the protective oxide and do not deteriorate as do silver coatings. These coatings are used for telescope mirrors, decorative paper, packages, toys, and in many other uses Aluminium and the environment The Australian aluminium industry has long been at the forefront of world environmental excellence in all aspects of its operations - from rehabilitation of its bauxite mines to emission control at the smelters. Since the industry started in Australia, recycling has been recognised as a way of saving energy and reducing pollution. Australian aluminium producers were among the first to recognise the secondary use of aluminium during the 1940s, and by the 1970s had established an extensive network of aluminium scrap collection points around the country. Recycling aluminium represents a 95% saving of energy needed to produce aluminium from bauxite. Conclusion From all the research I have done I can clearly say that the aluminium is a well-used metallic material. From my notes you can see that it has a history of over 100 years and also well used. ...read more.

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