(using google translate - so excuse the translation punctuation .... the message comes across loud and clear ... the Chinese have developed a new Td Dy rare earth magnetic material - which performs much better than anything else out there ...
I. Introduction:
Terbium dysprosium iron alloy is a new type of rare earth giant magnetostrictive material (GMM), because of its many excellent properties, has broad application prospects in the development of new products in all walks of life, it will bring far-reaching influence.
Second, the performance terbium dysprosium iron (TbDyFe) alloy is a new type of ultra-rare earth magnetostrictive materials, magnetostrictive strain (magnetostrictive coefficient) which is at room temperature of any previous field electrostrictive material can not be compared . Strain several times greater than conventional nickel-cobalt (Ni-Co) and so magnetostrictive alloys, is more than five times electrostrictive materials. Can be efficiently implemented convert electrical energy into mechanical energy, transport tremendous amounts of energy. 10-5 ~ 10-6 seconds a very short time, precision, stability and the magnetic field is formed static and dynamic characteristics to match the type of response without hysteresis. Response and stability, speed agility, so terbium dysprosium iron alloy as a driving element of the mechanical system response significantly reduced latency, which is the terbium and dysprosium-iron alloy element in alternating important characteristic of a magnetic field in the rapid creation of stretching strain response, so that it is technology in the industry development as actuators, control components, sensitive components has been more widely used.
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