Introduction Of Alloy
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Chemicals In Industry
ALLOY
Definition
alloy
• An is a mixture that has a least one metallic element in it. •
m e ta l +
Other element/ elements
= Alloy
Example: Steel, pewter, bronze, brass and duralumin.
Alloying Metal + other element/elements = alloy Atoms in pure metal are closely packed together Foreign atoms are added
Melting
Cooling of atoms in alloy is less closely packed together
Alloying A pure metal
An alloy
o rd e rly in ro w s . ØA to m ro w d isa p p e a r. w ca n slid e o v e r e aØch a sily T h oe th roewr eca n n o. t slid e o v e r e a ch o p u re m e ta ls a re so Ø ftT h u s , a llo y a re h a rd e r a n d stro n g
Comparison between pure metals and alloy Pure Metal
Alloy
Atoms are arranged in an orderly Foreign atoms re randomly manner and are closed together scattered in between pure metal atoms The layers of atoms can easily Pure metal atoms are unable to slide over one another move because of the presence of foreign atoms Less harder More harder Less stronger
More stronger
Malleable
Non-malleable
Ductile
Non-ductile
Superconductor Alloy • Superconductor alloys are materials that have no resistance to flow electricity. • Superconductor allow high current flows through them without producing heat as compared to normal conductors. • Uses: – To make light – To make magnet
Questions • What is alloy? • • How to made an alloy? • • What are the differences between alloy and pure metal?
The EnD
Prepared by: Farahiyah Bt Mohamed Omar SMK Clifford Kuala Kangsar, Perak
For: Kursus Dalam Perkhidmatan Program Pembestarian Sekolah (Project Based Learning: Students’ Module) 28th Sept – 23th Oct 2009
ALLOY
Definition
alloy
• An is a mixture that has a least one metallic element in it. •
m e ta l +
Other element/ elements
= Alloy
Example: Steel, pewter, bronze, brass and duralumin.
Alloying Metal + other element/elements = alloy Atoms in pure metal are closely packed together Foreign atoms are added
Melting
Cooling of atoms in alloy is less closely packed together
Alloying A pure metal
An alloy
o rd e rly in ro w s . ØA to m ro w d isa p p e a r. w ca n slid e o v e r e aØch a sily T h oe th roewr eca n n o. t slid e o v e r e a ch o p u re m e ta ls a re so Ø ftT h u s , a llo y a re h a rd e r a n d stro n g
Comparison between pure metals and alloy Pure Metal
Alloy
Atoms are arranged in an orderly Foreign atoms re randomly manner and are closed together scattered in between pure metal atoms The layers of atoms can easily Pure metal atoms are unable to slide over one another move because of the presence of foreign atoms Less harder More harder Less stronger
More stronger
Malleable
Non-malleable
Ductile
Non-ductile
Superconductor Alloy • Superconductor alloys are materials that have no resistance to flow electricity. • Superconductor allow high current flows through them without producing heat as compared to normal conductors. • Uses: – To make light – To make magnet
Questions • What is alloy? • • How to made an alloy? • • What are the differences between alloy and pure metal?
The EnD
Prepared by: Farahiyah Bt Mohamed Omar SMK Clifford Kuala Kangsar, Perak
For: Kursus Dalam Perkhidmatan Program Pembestarian Sekolah (Project Based Learning: Students’ Module) 28th Sept – 23th Oct 2009
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