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1. Shape Memory AlloysShape Memory Alloys

2. History Of SMA’sHistory Of SMA’s
• Discovered in 1932.Discovered in 1932.
• By Chang and Read.By Chang and Read.
• In 1938, Brass (CuZn).In 1938, Brass (CuZn).
• In 1951, Gold Cadmium (AuCd).In 1951, Gold Cadmium (AuCd).
• Not utilized until 1962.Not utilized until 1962.
• Buehler and co-workers discoveredBuehler and co-workers discovered
Nickel-Titanium (NiTi).Nickel-Titanium (NiTi).

3. TypesTypes
• Types Of Shape Memory AlloysTypes Of Shape Memory Alloys
– One-way Shape Memory AlloysOne-way Shape Memory Alloys
– Two-way Shape Memory AlloysTwo-way Shape Memory Alloys
• Types Of AlloysTypes Of Alloys
– NiTiNiTi
– Copper BasedCopper Based

4. ExamplesExamples
• Aerospace and Naval ApplicationsAerospace and Naval Applications
• MedicalMedical
– DentistryDentistry
– TweezersTweezers
• Mobile TelephoneMobile Telephone