Introduction

 LZJX was involved into TbDyFe technology business since 1998 till now, should be the first leading Chinese supplier for this kind of smart materials. During the past years efforts, we kept wide and steady connection with global experts and customers by supplying materials and application device cooperation.
 
Tb—Dy—Fe series giant mangetostrictive material is mainly composed of terbium, dysprosium and iron. Usually it is rod, disc, cubed, pipe etc. Special requirements can also be met. It is superior when applied in actuators and transducers, etc.
 
Rare Earth Tb-Dy-Fe Giant Magnetostrictive Material (GMM for short), also named Terfenol-D, a kind of function both as actuator material and sensor material. It has the highest magnetostriction that is 40∽100 times that of the traditional magnetostrictive materials. It has also other outstanding characteristics such as microsecond response, extremely high reliability, broad bandwidth, high output and wide operation temperature. This made it into an excellent material for transducer. This kind of smart materials application is only limited by people’s imagination.

 

The Specification Available

 
Special component or specification can be customized in accordance with the requirement of users.
Special component or specification can be customized in accordance with the requirement of users.
1.  Rod　（mm）

Diameter	Length
φ4~φ7	5≤L≤60
φ8~φ10	5≤L≤100
φ11~φ50	5≤L≤200
Grain oriented in the direction of the rod axes.

2.  Cube（mm）

3.  Ring　（mm）

Outer diameter	Pipe thickness(Min.)	Length
8≤D≤10	2	2≤L≤50
10＜D≤20	3	2≤L≤100
20＜D≤50	4	2≤L≤100
Grain oriented in the direction of the axes of the ring

4.  Disc　（mm）

Diameter	Minimum Thickness(δ)
4≤D≤50	1
Grain oriented in the direction of the thickness.

5. Lamination Rod   (mm）

Diameter	Length	Minimum lamination thickness(δ)
10≤D≤20	5≤L≤50	2
20＜D≤50	5≤L≤100	2
Grain oriented in the direction of the laminated rod axes.
The lamination are made by cutting the rod parallel to the direction of its axe, and then reshaping these pieces together using the binder. The layers of electronic insulation between each two pieces make the eddy-current greatly reduced.

 

Performance