Published May 18, 2006
by ICON Group International, Inc. .
Written in English
|The Physical Object|
|Number of Pages||187|
Magnetic materials specifically permanent magnets are critical for the efficient performance of many renewable energy technologies. The increased reliance on renewable energy sources has accelerated research in energy-related technologies the world over. The use of rare-earth (RE) metals in permanent magnets continues to be a source of greater concern owing to the limited RE supply coupled In , the world production of permanent magnets was estimated to be valued at $ billion and growing at an annual rate of 12%. Bonded permanent magnets are the fastest growing segment of this Table World Year Perspective for Permanent Magnetic Materials by Product Segment - Alnico Magnets, Hard Ferrite, Samarium Cobalt Magnets and NdFeB Magnets Markets for , , and Books at Amazon. The Books homepage helps you explore Earth's Biggest Bookstore without ever leaving the comfort of your couch. Here you'll find current best sellers in books, new releases in books, deals in books, Kindle eBooks, Audible audiobooks, and so much ://
Developed in the s and 80s, rare-earth magnets are the strongest type of permanent magnets made, substantially stronger than ferrite or alnico magnets. The magnetic field typically produced by rare-earth magnets can be in excess of tesla, whereas ferrite or ceramic magnets typically exhibit fields of to The use of REs permanent magnets (principally as NdFeB alloys), for electric motors, allows to have high power and torque, as well as smaller and lighter devices, as in the case of hard disk drives devices. This feature is also very important for future mass applications on hybrid vehicles (Moores, ). Alternatives and recovery Superconducting wires and cables are employed in many application fields, from NMR and MRI magnets, to high field magnets for test equipments, for nuclear fusion devices or for accelerators, where Permanent magnets are used to generate the static magnetic field in the case of a HET and of a HEMPT. In contrast, the magnetic field of a pulsed plasma thruster (PPT) is generated by the (arc) discharge itself, resulting in an accelerating j → × B → Lorentz force. Therefore, ionization and acceleration cannot be regarded as separate
An interesting experimental study, albeit with magnets, was performed in by Palmy. The device consisted of a levitating, thin, cylindrical permanent magnet between two poles of static permanent magnets. The levitating magnet was then heated by an external laser source, which caused it to :// Slight darkening of lead coupon. Suitable for permanent use to seal butt joints in showcases. Brush seal, panel connection system, permanent elastic silicone, Clear: Frank Europa GmbH: Suitable for temporary use: /02/ AWMM: Oddy test: Gasket materials: In vitrine or case. Suitable for permanent use to apply to leading edges of doors and :_Case_Construction_Materials. Table UK year Perspective for Permanent Magnets by Product Segment - Percentage Breakdown of Dollar Sales for Alnico Magnets, Hard Ferrite Magnets, Samarium Cobalt Magnets and NdFeB Magnets /PRNewswire/ -- This report analyzes the worldwide markets for Magnets and Magnetic Materials in US$ Million by the following Product Segments: Soft Magnetic