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Grade: Shape-Memory Alloy

Formula: Ni 50/Mn 28/Ga 22 (At.%)

Form: Bar

Material: Magnetic Shape Memory Alloy

Commodity: Alloys

Hazard Pictogram: GHS05, GHS07, GHS08

Shape-Memory Alloy Magnetic Shape Memory Alloy Bar (Ni50/Mn28/Ga22 (Atomic %))

Shape-Memory Alloy Magnetic Shape Memory Alloy Bar (Ni50/Mn28/Ga22 (Atomic %)) exhibits magnetic shape memory, meaning it changes shape in response to a magnetic field. With 3 variations available, this bar is used in applications like actuators, sensors and microfluidic pumps, taking advantage of its ability to undergo large deformation when exposed to a magnetic field. The magnetic shape memory effect allows for contactless actuation and sensing, making this alloy useful for developing solid state devices and MEMS.

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Tolerance

Properties

Reference & Citations

Corrosive

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Bar

Side Length	=<10mm	±10%
Side Length	>10mm	±1mm
Side Length (Of Longer Side)	>10mm	±1mm
Side Length (Of Longer Side)	=<10mm	±10%
Length	<100mm	±1mm
Length	>=100mm	+5% / -1%

Material Properties for Alloys

Magnetic Properties

Element	Value
Initial permeability	2
Maximum permeability	45
Coercivity (Hc)( A m⁻¹ )	4000
Curie temperature( C )	95-105
Remanence from saturation (Brem)( T )	0.02
Saturation flux density( T )	0.6

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	70
Temperature coefficient( K⁻¹ )	0.003

Thermal Properties

Element	Value
Crystallisation temperature( C )	1090
Maximum use temperature in air( C )	45
Melting point( C )	1130
Temperature - Austenitic( C )	50
Temperature - Martensitic( C )	45
Thermal conductivity( W m⁻¹ K⁻¹ )	16
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	20