properties of modern materials

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A-Level Design and Technology: Product Design

AQA

Technical principles

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modern materials

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<p><strong>kelvar</strong></p>

kelvar

  • aramid fibres with high cut and heat resistant properties

  • used for body armour, cut proof gloves, puncture resistant tyres

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<p>precious metal clay (<strong>PMC</strong>)</p>

precious metal clay (PMC)

  • clay consistency made up of fine metal particles

  • works like ceramic clay easily mouldable, shaped and formed

  • used for jewellery, decorative items

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<p>high density modelling foam</p>

high density modelling foam

  • polyurethane closed cell foam blocks or sheets

  • lightweight, easy to work using traditional woodworking tools (CNC miller/router)

  • used for 3D modelling, prototypes

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<p><span><span>polymorph</span></span></p>

polymorph

  • made from thermoplastic material, it can be shaped and reshaped a number of times

  • it comes in small beads and is used for modelling and prototyping