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

materials for toysTYPES OF MATERIALS

Extracts from this document...


TYPES OF MATERIALS Michael.h. Wood is a remarkable natural material. It is strong and relatively stiff and light. Its properties compete well with those of artificial materials. The fastest bomber in World War II, the British De Havilland Mosquito, was made of wood. When German intelligence discovered that the Allies were making aeroplanes out of wood, they thought that it was because supplies of metal had run out-not realizing that wood had been carefully chosen partly because it had excellent properties for this design. Wood remains the preferred material for many applications in the building industry throughout the world, and also for much furniture. Stone is another natural material, once used for making simple tools and weapons, and subsequently almost exclusively for buildings and sculptures. ...read more.


Iron is alloyed with controlled amounts of carbon and other elements to make steel, which was crucial to the Industrial Revolution, and is still by far the cheapest and most widely used metallic material. Aluminium alloys are widely used where weight-saving or corrosion resistance is more important than material cost-for example, in aeroplanes and to some extent in cars. The whole of modern information and communication technology depends on semiconductors. These may be elements, such as silicon, or compounds, such as gallium arsenide, that have just enough electrical conductivity to make them useful for controlling and amplifying electrical signals. Silicon is universally used for digital switching devices such as those that are used in computers. For more difficult jobs, such as converting electrical signals to light or vice versa, semiconductor compounds are used, and it is possible to tailor the properties of components by growing alternating layers of different materials. ...read more.


Polymer boxes can be made with integral hinges that can be flexed many thousands of times, and polymer roasting bags can survive high temperatures in ovens. Silk is a natural polymer that is stronger than many artificial materials. Polymers are usually electrically insulating, but they can also be made with useful conducting properties, and polymer transistors and light-emitting diodes have been produced. Desirable properties of more than one material can be combined in composites. Glass-fibre-reinforced composites (fibreglass) are widely used to give high strength and stiffness without the fragility usually associated with glass. Many composites use carbon or polymer fibres in an epoxy matrix (the matrix is the material in which fibres or particles are embedded). The artificial material that is used in the greatest tonnage throughout the world is concrete, which is a composite of gravel, sand, and cement. Advanced composites are being developed that consist of ceramic fibres and different ceramic or metal matrix materials. ...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 ...

    Produce accurate holes of high quality Aesthetics - how the product looks My hole punch must:- 1. Look attractive 2. Appear professional 3. Have a suitable finish 4. Be in proportion Ergonomics - adjusting the product to suit the user My hole punch must:- 1. Weigh less than 1kg 2.


    The rate of absorption/desorption varies with type of Nylon as well as temperature and relative humidity. Addition of fillers reduces the effect of moisture both due to volume reduction of the amount of Nylon polymer in the mixture, and

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

    Very low conductivity gases trapped in the closed cell structure also reduce heat transfer by conduction, thereby further increasing the thermal efficiency of these foams. The small cell size practically eliminates convection, another source of energy transfer. It is moisture resistant, dimensionally stable, air tight, resistant to the transfer of

  2. Conduction and materials

    does the area in front of the flame become hot but also in a short time, the entire piece of steel becomes hot.

  1. Investigation into the physical properties of glass.

    The compressive strength of tempered glass is a lot larger than the compressive strength of annealed glass because the edges of tempered glass are under compression, the particles are being pushed into each other, it takes a lot more force to prise apart the particles whilst they are under compression than when they aren't.

  2. Stretching Materials

    * Set up all apparatus * Secure a length of material 15cm long to the clamp. * Measure the length of the material with no weights on it * Attach the weight holder and the correct amount of weight. * Measure the extension of the material each time.

  1. Major project Outline: Educational Toys

    Analysis of the Research - You must comment on all you have found out from your research explaining how useful it has been and how you intend to use it. You may want to present this information in the form of graphs, charts, tables or text.

  2. 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

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