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Rare Earth Material Ring Square Plate Giant Magnetostrictive Terfenol - D

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Rare Earth Material Ring Square Plate Giant Magnetostrictive Terfenol - D

Brand Name : AIWEN
Model Number : Terfenol-D
Certification : ISO9001
Place of Origin : China
MOQ : 10 pcs
Price : Negotiable
Payment Terms : T/T
Supply Ability : 10 kg per week
Delivery Time : 2 weeks
Packaging Details : Carton with sponge protection
Material : Rare earth giant magnetostrictive material
Grade : Terfenol-D
Product form : Rod, square rod, plate, powder, ring
Rod diameter : 3-50mm
Plate thickness : ≥0.50mm
Density : 9.25g/cm3
Hc : 380°C
Product Name : Magnetostrictive Material
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Terfenol-D Rare Earth Giant Magnetostrictive Material in Shape of Square Plate

A-ONE ALLOY supplys Terfenol-D in forms of round bar, square bar, round plate, square pipe, tube, ring, laminated plates. Other forms are available per customer requirements.


A-one Alloy has rich experience of supplying various Terfenol-D products.

Terfenol-D has the largest room temperature magnetostriction of any known material. The name Terfenol originated from the metallic elements, Terbium (TER) and Iron (FE); and the discovering organization, Naval Ordnance Laboratory (NOL). Dysprosium (-D) was added as an alloying addition later to reduce the magnetic fields required to induce the magnetostrictive response.


Terfenol-D is an alloy comprised of Terbium, Dysprosium and Iron. Terfenol-D is a solid-state material capable of converting energy from one form to another. In the case of electrical-to-mechanical conversion, the magnetostriction of the Terfenol-D generates strains 100 times greater than traditional magnetostrictives, and 2-5 times greater than traditional piezoceramics. The material has a high Curie temperature (380°C), which enables magnetostrictive performance greater than 1000 ppm from room temperature to 200°C. Adjustments in alloy composition can extend this range down to cryogenic temperatures.

Terfenol-d Characters


As a material with multiple functions, it can be used in many different fields. Till now, more than 1000 kinds of different device have been developed, covering the fields of machine tool industry, electronic industry, oil industry, textile industry, aircraft and aerospace, agriculture as well as civil use. All these development do active advances in the regarding industry areas. For example, the use of the high power GMM transducer to treat the oil well reduces the viscosity of oil therefore increases the output of the oil greatly.

Available forms and sizes:

FormSize range
Round bardiameter 3~50mm, length≤200mm
Square barwidth 2~35mm, length 2~100mm
Ringdiameter 8~50mm, thickness 2~4mm, height 2~100mm
Round platediameter 4~50mmm, thickness≥1mm
Square platethickness≥0.5mm
Laminated round platesdiameter 10~50mm, length 5~100mm, min. laminated thickness 2mm
Powderavailable per request

Please contact A-ONE ALLOY for customized shapes.

Product Tags:

rare earth metals


rare earth materials

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Rare Earth Material Ring Square Plate Giant Magnetostrictive Terfenol - D Images

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