Here we can see the main characteristics of these two metals.

1. TITANIUM AND
ALUMINIUM
Alejandro Sabater García
David Pender Villalvilla

2. TITANIUM
Transition metal with 22 atomic
number

3. CHARACTERISTICS
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Abundant material in the enviroment
Silver and grey color
Oxide, ash, or stain appearence
Hexagonal estructure at enviroment temperature
Exists on Earth and in space

4. HISTORY
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Discovered in 1791 by William Gregor
Founded in a menaquita mineral in England
Founded again by Martin Heinrich in 1974
It was this time in rutilo

5. SPECIFIC PROPERTIES
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Light metal with low density (4507Kg/m3)
Paramagnetic. It doesn’t magnetic.
Resistant to the corrosion and oxidation
Refractory, and few conductivity
Great tenacity, ductile and malleable
Recyclable

6. USES OF TITANIUM
• Planes, helicopters, armour-plating , missils
manufactruring.
• Surgical instruments, crutches and prothesis
• Buildings construction
• Corporal Piercings and dental implants
• Helmets, rackets and parts of bicycles

7. TITANIUM PROTHESIS
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Artificial extensions that replace parts of body
They improve functions of disabled organs
Composed most of them by titanium
Orthopedic, cardic, dental, mammaria, genital
and auditive

8. NEGATIVE EFFCTS IN HEATH
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Low toxicity
Titanium produces titanium dioxide
It causes some effects in health:
Badbeing, pain of chest, and cough
Skin irritations
Carcinogenity

9. ALUMINIUM

10. APPEARANCE AND ORIGIN
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Metal
Silver-grey colour
Metallic texture
Extracted from bauxita
Terrestrial crust has plenty of it
Bauxita

11. HISTORY
• First obtained artificially: 1825
• Firstly considered a precious metal
• Name “aluminium” from latin “alumen”
Aluminium ingot exposed as a
precious metal in the 1850s

12. PROPERTIES
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Atomic number: 13. Atomic weight: 27u.
Symbol: Al
Light, density: 2700 kg/m3
Thermal and electrical conductor
Easily malleable
Melting: 660ºC. Boiling: 2470ºC.

13. UTILITIES
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Mirrors and telescopes
Means of transport
Aluminium foil
Jewelry: ruby and sapphire

14. RECYCLING
• 20% aluminium production comes from
recycling
• Very cheap to recycle (95% off)
• 45% of aluminium cans are recycled

15. CARBON FIBER
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Sinthetic alternative to aluminium
Made of wires
Lighter than aluminium, density: 1750 kg/m3
A kilometre-long filament weights 1 gram
Carbon wire compaired to hair

16. PROPERTIES
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Much more strength than aluminium
Stays still against heat
Great elasticity
Very expensive
Hi-tech utilities