Shapes

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  • Created by: cassie97
  • Created on: 30-05-14 14:18
Sodium Chloride
Ionic compound, forms a giant ionic lattice, crystal coordination number of 6,6.
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Caesium Chloride
Ionic compound, forms a giant ionic lattice, crystal coordination number of 8,8.
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Carbon Nanotubes
Used in micro-electronic circuits. Made of a single layer of graphite coiled into a cylinder. Very very small, can conduct electricity, very strong as all bonds are covalent.
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Smart Materials
Materials whose properties change reversibly with the surroundings eg. temperature, light and pH.
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Thermochromic Paint
Changes colour with heat.
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Photochromic Pigments
Changes colour with light.
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Shape-memory Alloys
eg. Nickel and Titanium alloys. Pseudo-elasticity and shape retention memory.
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Shape-memory Polymers
Can change shape when heated but returns to original shape when reheated.
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Polymer Gels ( Hydrogels )
Absorb / expel water ( 1000x volume ) with temperature or pH.
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When can nanoscience be used?
Sterilising sprays. They have antibacterial, viral and fungal properties.
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What are the dangers of nanoscience?
Particles can easily enter the body through the lungs or absorption through the skin and dangers are unknown.
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Other cards in this set

Card 2

Front

Caesium Chloride

Back

Ionic compound, forms a giant ionic lattice, crystal coordination number of 8,8.

Card 3

Front

Carbon Nanotubes

Back

Preview of the front of card 3

Card 4

Front

Smart Materials

Back

Preview of the front of card 4

Card 5

Front

Thermochromic Paint

Back

Preview of the front of card 5
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