Terfenol-D Magnetostrictive Iron Alloy (Tb0.3Dy0.7Fe1. 92)

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Terfenol-D Magnetostrictive Iron Alloy (Tb_0.3Dy_0.7Fe_{1. 92})

Subcategory: Superalloy; Electronic/Magnetic Alloy; Iron Base

Key Words: T-D, Tb0.3Dy0.7Fe1. 92, magnetostrictive, giant magnetostriction, terbium, dysprosium, magnetoelastic

Material Notes:
Terfenol-D is the commercial name for Tb0.3Dy0.7Fe1.92; a composition of material that exhibits giant magnetostriction.

Magnetostriction is the phenomenon in which an applied magnetic field causes an anisotropic change in length in the material (Joule effect) or a change in the stress state of the material changes its magnetic properties (Villari effect).

Magnetostrictive alloys have a wide range of applications in the areas of ultrasonics, sensors, audio, and transducers such as:

Actuators
Seismic tools
Non-round machining
High-powered ultrasonics
Sonar

Fuel injection

Vibration control

Information provided by ETREMA Products.

Available Properties

Density
Tensile Strength, Ultimate
Modulus of Elasticity
Bulk Modulus
Electrical Resistivity
Magnetic Permeability
Curie Temperature
CTE, linear 20°C
Specific Heat Capacity
Thermal Conductivity
Melting Point
Magnetomechanical Conversion Efficiency
Magnetomechanical Coupling Factor
Magnetostrictive Energy Density
Magnetostrictive Strain Production
Sound Speed

Property Data

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