Terbium Dysprosium Ferroalloy GMM Description
GMM (Tb1-xDyxFe2-y) material has actuation and sensing functions. Actuation means that the size of the material changes under the action of a magnetic field, which can convert magnetic energy into mechanical kinetic energy. It is characterized by high precision, fast response speed, and large force. At the same time, GMM material has a piezomagnetic effect, that is, the magnetization state of the material changes under the action of external force, so it can be made into a sensor.
Terbium Dysprosium Ferroalloy GMM Specifications
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Magnetostriction (λ//)
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≥1000x10-6 (80kA/m, 10MPa)
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Young's Modulus
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(2.5~6.5)×1010N/m2
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Tensile Strength
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≥25Mpa
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Compressive Strength
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≥260MPa
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Thermal Expansion Coefficient
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(8~12)x10-6/℃
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Curie Temperature
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380℃
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Coupling Factor
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0.65~0.75
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Sound Velocity
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1700~2600m/s
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Operating Temperature
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-40~150℃
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Density (g/cm3)
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9.15-9.25
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Energy Density
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14~25kJ/m3
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Relative Permeability
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3~15
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Conductivity
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(60~130)x10-8Ω·m
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Heat Capacity
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0.35kJ/kg·k
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Reponse Time
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＜1μs
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Precision
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10-1~10-3μm
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Response Range of Frequency
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1~104Hz
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GMM Material Product Specifications
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Rod
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Diameter (D)
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Length (L)
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4-7
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5≤L≤60
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8-10
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5≤L≤100
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10-50
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5≤L≤200
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Bar
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Length (L)
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Width (W)
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Height (H)
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2≤L≤4
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2≤W≤4
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2≤H≤30
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4≤L≤7
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4≤W≤7
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2≤H≤60
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7≤L≤35
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7≤W≤35
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2≤H≤100
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Ring
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Outer Diameter (D)
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Thickness(t)
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Length(L)
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8≤D≤10
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2
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2≤L≤50
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10≤D≤20
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3
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2≤L≤100
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20≤D≤50
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4
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2≤L≤100
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Plate
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Diameter (D)
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Minimum Thickness (δ)
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4≤D≤50
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1
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Layer
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Diameter (D)
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Length (L)
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Minimum thickness (δ)
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10≤D≤20
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5≤L≤50
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2
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20≤D≤50
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5≤L≤100
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2
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Terbium Dysprosium Ferroalloy GMM Applications
Giant magnetostrictive materials (GMM) has broad application prospects in:
sonar's underwater acoustic transducer technology,
electroacoustic transducer technology,
ocean exploration and development technology,
micro-displacement drive,
vibration reduction and anti-vibration,
noise reduction and anti-noise system,
intelligent airfoil, Robots, automation technology,
fuel injection technology,
valves, pumps, wave oil extraction and other high-tech fields.
Terbium Dysprosium Ferroalloy GMM Packaging
Our Terbium Dysprosium Ferroalloy GMM is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
