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Topic: Rare earth magnet

	Rare-earth magnet - Wikipedia, the free encyclopedia
		A rare-earth magnet is a special permanent magnet made out of the elements located in the lanthanides and actinides series of the periodic table.
		The magnetic field produced by these rare-earth permanent magnets can be well over 1.2 teslas which is much stronger in magnitude compared to the more commonly used ferrite or ceramic magnets which only exhibit around 50 to 100 milliteslas.
		These magnets are found in almost every computer hard drive as well as in various types of speakers.
	en.wikipedia.org /wiki/Rare_earth_magnet (239 words)

	Rare earth magnets for fun and profit
		This collection of magnets is three "grab bags" worth, from ForceField, who seem to be pretty much the only really serious sellers of a proper range of cheap surplus rare earth magnets on the Internet at the moment.
		The stronger the magnet and the more metal there is (the base of a chunky CPU cooler is an excellent candidate for this experiment, and I've got a few of those kicking around...), the stronger the "syrupy" feeling you'll get.
		You'll find magnetic dampers on laboratory balances, for instance; a simple aluminium or copper tag on the end of the balance arm, moving between two strong magnets attached to the balance's frame, is the perfect way to stop the balance from oscillating for ages before settling on a reading.
	www.dansdata.com /magnets.htm#ff (5513 words)

	Rare Earth Magnet at Power-Magnetonline.Com
		Rare Earth Magnet related phrases are on Power-Magnetonline.Com.
		A cast magnet this is not heat-treated within a particular magnetic field is called isotropic.Details of every single one Ford Probe model types in addition to body forms...
		Magnets have a particular immense range of uses, within education, industry and at house.
	www.power-magnetonline.com /rare%20earth%20magnet.shtml (608 words)

	Impact Analysis of Rare-Earth Magnet Materials, 15-9203
		To each of the assembled magnets, five matched and prewired, three-axis Hall-effect transistors to measure the magnetic field were bonded in place.
		One sensor was in the center and one sensor was located on each of the four corners to provide a magnetic field measurement at five separate locations across the face of the magnet.
		Each instrumented magnet assembly was bolted onto the mounting jig and allowed to drop at a set height onto a rubber programmer to achieve 1000 g's in two orientations and at 3000 g's in the preferred penetrator mounting orientation.
	www.swri.org /3pubs/IRD2000/15-9203.htm (533 words)

	The Rare earth magnet with panda magnets and magnet wire small order
		Magnets for dog collars earth magnets magnet necklaces permanent magnet chick magnet mosqito magnet cartoon magnets british flag car magnet stock magnet the magnet mail save the date magnets refridgerator magnets save the date photo magnets magnet motor magnet red hat magnets.
		Monster magnet mp3 birth announcement magnets digital photo fridge magnets magnet hospital magnet wire police magnets promotional bar magnets save the date magnets us state magnets bonded magnet magnet public schools sports magnets for cars copper magnet wire the strength of magnets according to temperature nib magnets.
		Magnet school magnets for health what is a magnet custom magnet ribbons curved lifting magnets brushless permanent magnet generators.
	rare-earth-magnet.zhzv.com (867 words)

	RARE EARTH MAGNET TYPES
		Magnet Applications is proud to have been nominated as an agent for Yunsheng Strong Magnet Company Limited, who in April 2001 were granted a license by Sumitomo Special Metals to produce and sell NdFeB.
		All NdFeB magnets sold by this company are produced in Yungsheng's factory in Ningbo, China and guaranteed to be salable in countries where the license is relevant without restriction.
		The "rare earth" element is from the Lanthanide group and the description is a misnomer; both Samarium and Neodymium are much more prevalent in the earth's crust than for example Lead.
	www.magnetapplications.com /USA/rare1.htm (464 words)

	Rare Earth Magnet
		Its name "rare earth magnets" comes from the Rare Earth Elements, such as Neodymium, Samarium and others, which are contained in the chemical composition of rare earth alloys.
		Powder of rare earth elements and some transition metal are melt, alloyed, crushed, milled, pressed and meanwhile magnetically orientated.
		Rare earth magnets are extremely powerful per volume, thus miniaturization could be achieved by using rare earth magnets in industrial or consumer applications.
	www.armsmag.com /rare_earth_magnet.htm (272 words)

	K&J Magnetics - Neodymium Rare Earth Magnet Information and Specifications
		Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world.
		Neodymium magnets are a composition of mostly Neodymium, Iron and Boron.
		To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated.
	www.kjmagnetics.com /neomaginfo.asp (700 words)

	Rare Earth Magnets for Science, Engineering and Education
		Neodymium rare earth magnets are the strongest permanent magnets.
		Rare earth magnets can be made in custom sizes, strengths & magnetization axis; minimum order is $100.
		See frustrated magnets for an interesting article on new research and discoveries on magnets.
	www.indigo.com /magnets/neodymium-magnets.html (380 words)

	Rare-earth (from magnet) -- Encyclopædia Britannica
		Often they are called simply rare earths, but this is a misnomer because the term earth properly is...
		The studies of the solid Earth and the water on and within it and the air around it are called Earth sciences.
		Included in the Earth sciences are the geological, the hydrological, and the atmospheric sciences, which are concerned respectively with the nature and behavior of the Earth itself, the water, and the air.
	www.britannica.com /eb/article-4451 (822 words)

	Electric Motors & Drives - Implications of rare-earth magnet cost reduction
		A large potential growth area for rare earth magnets is in powerful drive motors for the electric car market.
		Typical projections for the use of permanent magnets suggest an increase from around $10 million of business today, to around $200 million at the end of the decade, for a global market of around 3 million electric cars.
		However, to enable the widespread uptake in preference to conventional magnets a significant reduction in manufacturing cost is required.
	www.oakdenehollins.co.uk /magnets (405 words)

	Neodymium Magnet,NdFeB Magnet,rare earth magnets
		Known as third generation of Rare Earth magnets, Neodymium Iron Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnet today.
		Although bonded magnets do not possess magnetic properties as advanced as those of sintered magnets, they can be made in shapes and sizes that are difficult to achieve with sintering.
		A variety of coatings can be applied to the magnets' surface to overcome the principle drawback of neodymium-based magnets, their tendency to corrode easily.
	www.mmcmagnetics.com /ourproducts/main_NdFeB.htm (165 words)

	MM10 Rare Earth Bar Magnet 1/4-Inch x 3/4-Inch (Site not responding. Last check: 2007-11-06)
		Rare Earth Mighty Magnets GRI s Mighty Magnets are Nickel Plated to Protect from Chipping or Corrosion Mighty Mags assist in resolving the installer s problem of drilling into the new thinner vinyl windows These rare earth magnets are extremely small and install fast and easily without worry over damage
		GRI Mighty Magnets make use of a rare earth alloy which allows the size of the magnet to be significantly reduced while still retaining or improving the gap involved.
		These rare earth magnets can be mounted with the mounting screws and or double stick tape included in the bag or may be glued into the window.
	www.basshome.com /product_8403.htm (234 words)

	Rare Earth Neodymium Magnets - National Imports (Site not responding. Last check: 2007-11-06)
		National Imports is a distributor of MAGCRAFT rare earth neodymium magnets and 3M adhesives for education, industry and engineering.
		Our neodymium magnets are made with the world's most powerful permanent magnetic material.
		We carry a wide range of shapes, sizes, and grades of neodymium magnets.
	www.rare-earth-magnets.com (164 words)

	Rare Earth magnets work great with our new magnetic paint
		Use Technostryd Rare Earth Magnets when you would rather not use adhesive backed sheet magnet on a paper object mounted magnetically.
		At only $1.25 each, Technostryd Rare Earth Magnets are a very attractive solution to the problem of magnetically mounting those special items that you want to protect.
		Care should be taken in handling Technostryd Rare Earth Magnets as they are quite strong and can snap together quickly if held near each other.
	www1.ecxmall.com /stores/lyt/rareearth.html (234 words)

	Rare Earth Magnets and Rare Earth Magnet Manufacturers \| Zycon Industrial Directory
		Rare Earth is an advanced magnetic material that has begun a new era for magnetic design.
		They are called rare earth because their composition elements found in the "Rare Earth" or Lanthanides portion of the Periodic Table of Elements.
		We are Rare Earth magnets manufacturer, and we can provide you the high quality but best price magnets to you.
	www.zycon.com /Magnets/Rare_Earth_Magnets.html (254 words)

	(WO 03/052778) ALLOY FLAKE FOR RARE EARTH MAGNET, PRODUCTION METHOD THEREOF, ALLOY POWDER FOR RARE EARTH SINTERED ... (Site not responding. Last check: 2007-11-06)
		(57) Disclosed is a rare earth magnet in the R-T-B (rare earth element-transition metal-boron) system that is made from an improved composition and properties of main phase alloy in the R-T-B system containing Pr and a boundary alloy.
		Disclosed also is a manufacturing method of the rare earth magnet alloy flake by a strip casting method with improved rotating rollers such that the alloy flake has a specified fine surface roughness and has a small and regulated amount of fine R-rich phase regions.
		Consequently, the alloy flake for the rare earth magnet does non contain α-Fe and has a homogeneous morphology so that the rare earth magnet formed by sintering or bonding the alloy flakes exhibits excellent magnetic properties.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/52778.030904 (278 words)

	Amazing Magnets
		Rare Earth NdFeB Magnets, at discounted prices for Industry, Crafts, Hobby and Science.
		We are glad to be your supplier of choice, and look forward to suppling you with the highest quality magnets.
		These little guys are so strong they will hold between 20-30+ sheets of paper with only a single little magnet.
	www.amazingmagnets.com /index.asp?PageAction=VIEWPROD&ProdID=63 (61 words)

	PSN-L Message - Subject: compact rare-earth magnet assembly
		About making a suitable magnet for a seismometer moving-coil transducer: (This was first presented in February 2000) A useful annular or "pot" magnet for seismometer transducers can be made from off the shelf or "bought" hardware.
		There are many possible permutations in configuring a magnet to work with a coil.
		(The long boom of the original STM-8 is because of the minimal clearance of the coil in the 10" speaker magnet, which is designed to move in a straight line.) It is also useable for a compact (6" boom) horizontal seis of the Lehman design.
	www.seismicnet.com /psnlist/010508_225802_1.html (546 words)

	rare earth magnet source? - RC Groups
		rare earth magnets, and have looked everywhere I can think of locally (BC, Canada) including all our radio shacks, walmart, "learning link" science store, london drugs.
		Radio Shack in Canada doesn't carry the rare earth magnets.
		If you tear apart some scrap computer floppy drives, there are small magnets inside but usually rectangular.
	www.rcgroups.com /forums/showthread.php?t=36636 (340 words)

	WorldNetDaily: Beijing acquires more U.S. technology
		While the PRC was engaged in high-level technological acquisitions to obtain the related technology and machine tools that make permanent rare-earth magnets, a U.S. company mining the raw materials for the magnets was about to be closed.
		Until 1998 there were essentially two active mines in the world producing rare earths for the exotic magnets – the PRC's Baotou mine and an American-owned mining operation in the Mojave Desert.
		The tiny town of Mountain Pass, Calif., was home of the Molycorp mine from which experts say the highest-grade rare earths in the world came.
	www.worldnetdaily.com /news/article.asp?ARTICLE_ID=31385 (1225 words)

	Rare-Earth Magnets
		In addition, this site provides a number of corporate and association directories; general information related to the topic of magnetism; a survey of the health effects of static magnetic fields; and safety guidelines for handling rare-earth magnets.
		Survey of the intellectual property rights of the developers of rare-earth magnets and related manufacturing processes.
		A survey of the current research on the health effects of static magnetic fields and compounds contained in rare-earth magnets including neodymium, samarium, boron, cobalt, and iron.
	www.rareearth.org (216 words)

	Rare Earth Magnets
		Neodymium magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition metals.
		Samarium cobalt magnets (SmCo) are composed of samarium, cobalt and iron.
		These rare earth magnets are extremely strong for their small size, metallic in appearance and found in simple shapes such as rings, blocks and discs.
	www.magnetsource.com /Solutions_Pages/rareerth.html (100 words)

	SCIENCE HOBBYIST: fun with neodymium magnet beads, DIY magnet toys
		With enough magnets you could wrap this nanotube into a spiral, to form a thick hollow tube, then wrap THAT tube into a spiral to form a bigger tube, etc.
		Chains of beads can merge with north ends near south ends, where the overall field is zero (it forms rings.) Or, if you just gather a wad of beads together, it will have no large external field, since the beads have a strong tendency to form internal rings.
		Magnet Suppliers: Wondermagnet Engconcepts KJM Magnets 4 Less Neoworld
	www.amasci.com /amateur/beads.html (1546 words)

	Magnet City, supplier and manufacturer of consumer and industrial magnets and magnetic materials
		Magnet City, supplier and manufacturer of consumer and industrial magnets and magnetic materials
		Magnet City is a professional manufacturer and exporter of all kinds of magnets, including magnetic materials, Ferrite, NdFeb, Alnico, Smco, magnetic assembly, industrial permanent magnets and mechanical seals.
		Magnet City offers solutions to all your magnet and magnetic manufacturing needs.
	www.magnetcity.net (206 words)

	Rare Earth Magnet Question - Official WDP Angel Owners Group (Site not responding. Last check: 2007-11-06)
		actaully the rare earth magnets are BUTT strong...
		Oh yeah and I found out that rare earth magnets are neodymium magnets.
		He put the magnet in where the toe adjustment screw is.
	www.angel-owners.com /showthread.php?t=17796 (461 words)

	Strong Neodymium Magnets Rare Earth K&J Magnetics
		If you are using magnets in some invention or product, you must be sure to use only licensed neodymium magnet products to prevent future legal patent issues.
		We also carry a wide selection of neodymium "Mounting Magnets." These are strong neodymium magnets in a nickel plated steel casing that allows the magnets to be easily fastened to your project or structure using screws, bolts and/or nuts.
		One style of Mounting Magnet comes with a hook attached, which can be incredibly handy on your fridge, in your garage or shop, or in your locker.
	www.kjmagnetics.com (795 words)

	Topical review
		The formation of the phases is found to depend on the difference between the symmetries of the metastable and equilibrium phases.
		The magnetic properties of the metastable-phase rare-earth permanent magnets synthesized by various processes, such as mechanical alloying, mechanical milling, rapid quenching, hydrogenation, disproportionation, desorption and recombination, solid-state reaction, solid-gas reaction, self-flux and sputtering, are compared.
		The main conclusion of this article is that searching for new metastable phases with high magnetic performance will be one of the most active directions in the research on rare-earth permanent magnets.
	stacks.iop.org /0022-3727/33/R217 (332 words)

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