• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Aluminium Presentation.

Extracts from this document...


Aluminium Presentation I've done my presentation on Aluminium and will be talking to you about its properties, where it's found and its uses and why it's the best material for these purposes. Aluminium. Chemical symbol Al. Atomic weight approx 27 Atomic number 13 and electronic configuration 2-8-3. Appearance- pure aluminium is a shiny silvery white material. Down to the molecular level aluminium has a polycrystalline structure where the metal has cooled from different areas of the material where. Where these areas meet are called the grain boundary. This structure gives aluminium its many properties. Density - The first thing you notice about aluminium is its relatively lightweight. It has a density of 2,7g/mm3. This is about 1/3 the weight of a piece of steel the same size. Resists Corrosion - like many other metals aluminium is very reactive in air and thus a fine layer of aluminium oxide is created on the surface. This provides provides a highly effective barrier to the ravages of air, temperature, moisture and chemical attack. ...read more.


Aluminium itself conducts about 63% of that of copper of the same mass. Aluminium is also a great conductor of heat conducting about 220 Watts Occurance Aluminium is the most abundant metal in the earths crust. Only the non metal elements oxygen and silicon are more abundant. The largest deposits of aluminium are found in Australia, Guinea and West Indies. Aluminium does not occur in its pure form but as either an aluminium silicate or as bauxite which consists of aluminium oxide and commonly iron oxide also. As seen in the picture the aluminium ore is a redish colour this is caused by the iron ore mix. Bauxite is produced through chemical weathering of rocks in tropical climate. Extraction The method now used for aluminium's commercial production is the electrolysis. An iron pot, lined with carbon, is charged with cryolite and heated to about 800�C by the electric current. For the electrolysis, a bundle of carbon rods is used as the anode, while the pot itself forms the cathode. ...read more.


Heat - aluminium is about 3 times as thermal conductive as steel. This feature is used in cooking utensils, engines, air conditioners and it is also being used in energy saving equipment such as solar cells. Reflective - Because aluminium is reflective of most electric, heat and light waves it is being more commonly used in the insulation of homes. Harsh conditions - Unlike steel which gets brittle in cold conditions aluminium get stronger making it the perfect material to use in harsh conditions. Aluminium is now being used on snow-mobiles Cans - aluminium is a non toxic material, smooth, easily washable and is hygienic because no germs an grow on it. Also because malleability it can be shaped into any shaped or form making it ideal for packaging Because of aluminiums low melting point approx 600 C it is the ideal material in this age of energy and resource saving to recycle. So what makes aluminium an great material for all these uses? Its low density Resist corrosion Good conductor of electricity and heat Its ductile High reflectivity Given tremdous strength through alloying Non toxic Cheap to produce and recyclable ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Resistant Materials section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Resistant Materials essays

  1. The task has been set to make a hole punch (used to punch holes ...

    I will also be looking at existing products for ideas as to how I could develop my hole punch. I will adapt my project during construction and note any modification that occurred. After production, I shall test the device, ensure it meets my specification, suggest improvements and evaluate its success.


    The shrinkage factor used in designing the mold must take the potential for change in post molded dimensional into account. Although moisture causes problems in working with Nylons, it does contribute to: better dye ability, toughness, softness and greater flexibility in Nylon parts. Another dominant feature of Nylons is crystallinity.

  1. My aim of this experiment is to recognize which material is the greatest sound ...

    that it is part of an infinite number of links which are joined together. Each molecule is composed of a string of carbon atoms joined by covalent bonds. Other atoms join on to the carbon atoms, but each carbon atom is always linked to two other carbon atoms.

  2. Investigation into the physical properties of glass.

    Is glass a liquid or a solid 13, 14, 15, 3 Whilst conducting my research I noticed that the debate about whether glass was a solid or liquid was a lot wider than I first imagined it would be. In this section of my report I will be explaining the various viewpoints and putting my own viewpoint.

  1. Thermal Conductivity.

    nail fell off the opposite end so we had to do the test again to acquire a result. I concluded to myself that the reason for the melting of the sample material glass must have an irregular pattern of atoms so that the gaps in between the atoms could absorb

  2. The Progression of the Sail Boat from Past to Present and beyond

    The compromise involved in choosing the right yarn also depends on the creep (long term stretch) and the 'weaving quality'. Another variable property of the sailcloth is its yarn content. This varies with relation to the aspect ratio, this is the luff length divided by the foot length.

  1. TASK: Turning a Mild Steel Bar.We were each given a mild steel bar to ...

    Once the piece was finished, the lathe had to be cleaned down ready for the next user. Milling Task: Milling Aluminium We were each given a piece of aluminium which was to be milled so that it measured 40mm x 40mm.


    This is due to the fact that ductile materials other than steel typically do not have a well defined yield point. For these materials the yield strength is typically defined by the 0.2% offset strain. The yield strength at 0.2% offset is determined by finding the intersection of the stress

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work