
	Where results make sense

Topic: Ferrite (iron)

Related Topics

Iron Maiden band

Iron Age

Iron Butterfly

The Iron Man

iron ore

Iron Cross

Iron Curtain

cast iron

Bath Iron Works

Jeremy Irons

Iron oxides

In the News (Tue 14 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Steel - Wikipedia, the free encyclopedia
		Iron is extracted from ore by removing the oxygen by combining it with a preferred chemical partner such as carbon.
		Iron smelting at this time was based on the bloomery, a furnace where bellows were used to force air through a pile of iron ore and burning charcoal.
		Although the brittle cast iron may initially have been a nuisance to the smith, as it was too brittle to be forged, the spread of cannon to Europe in the 1300s provided an application for iron casting, cast iron cannonballs.
	en.wikipedia.org /wiki/Steel (3972 words)

	iron. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Because iron is a component of hemoglobin, a red oxygen-carrying pigment of the red blood cells of vertebrates, iron compounds are important in nutrition; one cause of anemia is iron deficiency.
		Iron is the fourth most abundant element in the earth’s crust, of which it constitutes about 5% by weight, and is believed to be the major component of the earth’s core.
		Iron is found distributed in the soil in low concentrations and is found dissolved in groundwaters and the ocean to a limited extent.
	www.bartleby.com /65/ir/iron.html (960 words)

	Iron Age - Hutchinson encyclopedia article about Iron Age (Site not responding. Last check: 2007-09-10)
		is characterized by greater skills in metallurgy and a gradual increase in the use of iron, as well as by the practice of cremation, in which ashes would be placed in an urn in the ground.
		The Iron Age saw the development of hierarchical systems, with tribes and chiefs, and the strengthening of defences, such as hill forts and enclosures.
		In Scandinavia, the Roman Iron Age and the periods of migrations and Vikings are considered to be Iron Age by Scandinavian scholars, since they are essentially prehistoric (or protohistoric) rather than historic periods.
	encyclopedia.farlex.com /iron+age (913 words)

	Ferrite (Site not responding. Last check: 2007-09-10)
		Ferrite may refer to: (1) ferromagnetic ceramic materials, used in magnetic applications; (2) iron or iron alloys with a body centred cubic crystal structure.
		Ferrite particles are also used as a component of radar-absorbing materials used in stealth aircrafts and in the expensive absorption tiles lining the rooms used for electromagnetic compatibility measurements.
		In pure iron, ferrite is stable below 910°C. Above this temperature the face-centered cubic form of iron, austenite (gamma-iron) is stable.
	www.worldhistory.com /wiki/F/Ferrite.htm (454 words)

	Structure of plain steel
		The essential difference between ordinary steel and pure iron is the amount of carbon in the former, which reduces the ductility but increases the strength and the susceptibility to hardening when rapidly cooled from elevated temperatures.
		2), which now consists of two constituents, the white one being the ferrite, and the dark parts representing the constituent containing the carbon, the amount of which is therefore an index of the quantity of carbon in the steel.
		P, denotes the commencement of precipitation of ferrite from austenite.
	www.key-to-steel.com /Articles/Art3.htm (1308 words)

	Process for the treatment of metal-containing water and recovery of metals therefrom - Patent 5505857
		In the third precipitation stage, iron is recovered as spinel ferrite in an ambient temperature process by adding a reducing agent to the water, adding a soluble ferrous salt to the water, adjusting the pH to about 9-12 and oxidizing the water with an oxidizer, e.g., air, to form spinel ferrite.
		In the preparation of high quality (high grade) magnetic spinel ferrite from contaminated water in accordance with the present invention, it is important that substantially all arsenic and aluminum be removed from the water or aqueous supernatant before the water or aqueous supernatant is treated by the process of stage (c).
		In the ferrite precipitation stage, the ORP is reduced by the reducing agent to provide a lowering of the potential to a less positive or a more negative potential sufficient to convert iron which is in the ferric ion form to iron in the ferrous ion form.
	www.freepatentsonline.com /5505857.html (11238 words)

	[No title] (Site not responding. Last check: 2007-09-10)
		Particle clumping and stacking in media is influenced by several factors, including properties of the particles such as particle shape, diameter, and aspect ratio, and other factors such as viscosity and composition of the magnetic paint, the applied magnetic field used for particle orientation, and milling conditions during processing of the particles.
		Thus the substantially spherical magneto-plumbite ferrite particles of the present invention may suitably be used as the magnetic powder material of magnetic recording tape, and would also find application in such media as magnetic stripe cards, floppy disks, etc., particularly for high-capacity storage applications.
		The shape of the particles is substantially spherical, as opposed to the platelet and acicular magneto-plumbite ferrite particles previously known.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=00/27546.000928&ELEMENT_SET=DECL (6348 words)

	STRENGTH OF MATERIALS - LoveToKnow Article on STRENGTH OF MATERIALS (Site not responding. Last check: 2007-09-10)
		With cast iron the slope of the plane is such that this simplest mode of fracture can take place only if the height of the block is not less than about 4 the width of the base.
		Microscopic examination of the low or medium carbon steel used for structural purposes shows it to consist of grains of iron (ferrite), interspersed~ with grains which have in general a laminated structure,and are composed of alternate bands of two constituents, namely, iron and carbide of iron (Fes C).
		The effect of small quantities of carbon in iron, of nickel in iron, of aluminium in copper, are important practical instances where a highly beneficial effect, in respect of strength and ductility, is produced.
	www.87.1911encyclopedia.org /S/ST/STRENGTH_OF_MATERIALS.htm (13075 words)

	Principal Metals (Site not responding. Last check: 2007-09-10)
		The lower area is alpha ferrite; the upper, delta ferrite.
		Ferroalloy, An alloy of iron with a sufficient amount of some element or elements such as manganese, chromium, or vanadium for use as a means in adding these elements into molten steel.
		Used principally on iron and steel, means heating the metal to about 100 (degrees) F. above the critical temperature range, followed by soaking at this point and slow cooling below the critical temperature.
	www.principalmetals.com /glossary/fdoc.htm (1784 words)

	STRENGTH OF MATERIALS - Online Information article about STRENGTH OF MATERIALS
		iron, are so far from being isotropic that their strength is widely different for stresses in different directions.
		Thus, in the testing of soft iron or mild steel by a machine in which the stress is applied by hydraulic power, a stage is reached soon after the limit of elasticity is passed at which the metal begins to flow with great rapidity.
		The case is different with plates and bars that are rolled cold: they, like wire supplied in the hard-drawn state (that is, without being annealed after it leaves the draw-plate), exhibit the higher strength and greatly reduced plasticity which result from permanent set.
	encyclopedia.jrank.org /STE_SUS/STRENGTH_OF_MATERIALS.html (9668 words)

	Ferrite & Iron Powder Toroid Info
		Apart from the physical dimensions of a toroid (outside and inside diameter, thickness) there is a value given for each particular core size and material, which is usually called the AL value, and is the manufacturers inductance index for the core.
		Manufacturers data for iron powder and ferrite cores are in the data tables and show all the required information.
		The AL figure for iron powder cores is given as uH/100 turns, but for ferrite cores it is quoted as mH/1000 turns.
	home.woh.rr.com /n8ie/coreinfo.htm (259 words)

	fe3cdiagram (Site not responding. Last check: 2007-09-10)
		It is the softest structure on the iron-iron carbide diagram.
		The structure of pearlite includes a white matrix (ferritic background) which includes thin plates of cementite.
		Free ferrite is also known as proeutectoid ferrite.
	info.lu.farmingdale.edu /depts/met/met205/fe3cdiagram.html (420 words)

	[No title] (Site not responding. Last check: 2007-09-10)
		Marrying inexpensive soft ferrites that have low core loss with inexpensive iron powder that have distributed air gaps in a composite core is a great way to meet such objectives.
		Soft ferrite manufactures have attempted to make distributed gapped soft ferrite cores but have not been able to achieve loadings of sintered soft ferrite powder into a plastic or resin carrier that result in effective permeability’s greater than ~20, which in most cases is to low to be useful.
		The soft ferrite gapped to the same effective permeability as the iron powder supports a lot of dc magnetizing force but it saturates abruptly and the fringing flux is problematic.
	www.tscinternational.com /tech11.doc (1531 words)

	NASA's Hubble And Chandra Telescopes provides evidence of an ancient universe.
		The discovery of this much iron in the early universe, and the presence of such mature galactic structures at the dawn of the universe, significantly undermines the predictions and the usefulness of the gas model.
		Iron and silicon are far more abundant in the early stages of the formation of our universe than predicted by the gas model.
		Chandra records the remnants of an expanding ferrite LAYER of Cassiopeia A that is not concentrated in the center of the star, but all along the surface, forming a spherical LAYER and pattern.
	www.thesurfaceofthesun.com /evidence.htm (2901 words)

	Power Considerations (Iron Powder and Ferrite)
		The safe operating total flux density level for most Ferrite materials is typically 2000 gauss, while Iron Powder materials can tolerate up to 5000 gauss without significant saturation effects.
		Iron Powder cores (low permeability) are superior to the Ferrite material cores for high power inductors for this reason: Fewer turns will be required by the Ferrite type core for a given inductance.
		Ferrite type cores will require fewer turns, will give more impedance per turn and will couple better, whereas the Iron Powder cores will require more turns, will give less impedance per turn, will not couple as well but will tolerate more power and are more stable.
	www.bytemark.com /products/powercon.htm (676 words)

	Ferrite Magnets: Iron Boron Ceramic Magnet
		errite magnets are ceramics made primarily from iron and boron with a small amount of strontium.
		Ferrite magnets are generally the best choice for doing repulsion and attraction experiments since some of the rare earth magnets may be too strong and steel bar magnets will demagnetize.
		The plain ferrites shown below are all magnetized through their thickness.
	www.indigo.com /magnets/ferrite-magnets.html (234 words)

	Hitachi metals,hardware magnet, magnet fabrication, Philips magnet, headgear magnet, ornaments magnet
		Ferrite cores used for audio and video electronics and switching power supplies-with excellent properties such as high saturation magnetic flux density,super low power loss and etc.a kind of product with output over whelms other kinds in the corporation.
		Ferrite cores used for EMI suppression featuring wide frequency band and high impedance a kind of electronic components which can not be absent in the field related to electromagnetic compatibility.
		Ferrite cores used for SMT featuring light weight,small size and low mounting height a kind of ferrite cores having boundless prospects.
	www.magnets.com.cn /in2g-a.htm (181 words)

	Structure and Properties of Iron-Carbide Multilayers
		In those studies, the only phases observed in the strained state were those of ferrite and cementite, with the ferrite regions displaying a supersaturation of carbon from the dissolved cementite.
		In this work, we will prepare artificial iron carbide multilayers with periodicities in the 2-50 nm scale range, varying the composition of both the ferrite (iron) phase and that of the carbide.
		The iron phase (ferrite) is expected to equilibrate its composition (carbon content) rapidly with respect to the carbide.
	alumnus.caltech.edu /~rchin/research/research.html (2118 words)

	Iron-Iron Carbide Phase Diagram Example
		The diagram shows iron and carbons combined to form Fe-Fe C at the 6.67%C end of the diagram.
		The left side of the diagram is pure iron combined with carbon, resulting in steel alloys.
		They are the eutectoid E, the hypoeutectoid A, and the hypereutectoid B. The right side of the pure iron line is carbon in combination with various forms of iron called alpha iron (ferrite), gamma iron (austenite), and delta iron.
	www.sv.vt.edu /classes/MSE2094_NoteBook/96ClassProj/examples/kimcon.html (720 words)

	(WO 00/27546) SUBSTANTIALLY SPHERICAL MAGNETO-PLUMBITE FERRITE PARTICLES AND METHODS FOR PRODUCING AND MEDIA EMPLOYING ... (Site not responding. Last check: 2007-09-10)
		The precursor particles are mixed with a colloidal barium or strontium carbonate, and with small amounts of a byproduct, such as sodium or potassium chloride or hydroxide or nitrate, functioning as a flux to lower the calcination temperature.
		The particles are filtered out of the mixture, dried, and calcined for a time sufficiently long and/or at a temperature sufficiently high to form magneto-plumbite ferrite from the precursor particle, and a for a time sufficiently short and/or a temperature sufficiently low to maintain the general spherical shape of the precursor particles.
		The particles are used for forming a magnetic recording media by dispersing the particles in a magnetic paint and coating the paint onto a substrate (6), or by dispersing the particles in a self-supporting material (7).
	wipo.int /cgi-pct/guest/getbykey5?KEY=00/27546.000928&ELEMENT_SET=DECL (289 words)

	Iron Boron Supplier - (Site not responding. Last check: 2007-09-10)
		Earth magnets, Neodymium Iron Boron (NdFeB) magnets are the...
		Goodluck International - iron pipe fittings, stainless steel castings, iron pipe fittings supplier, steel castings exporter, india, steel structures, water meters, cast iron pipe fittings, alloy steel casting, from India.
		Exprot China investment casting,grey iron casting,ductile iron casting,steel casting,refractory brick,wire mesh container/pallet/rack/deck,Mgo fireproof board,die casting...
	supplier.fmqg.com /index.php?k=iron-boron-supplier (1208 words)

	Maget Industry (Taiwan) - ferrite cores, iron powder cores, MPP cores. .
		Maget Industry (Taiwan) - ferrite cores, iron powder cores, MPP cores.
		In 1973 we were the first "Ferrite Cores" factory to be established in Taiwan.
		We were in 1994 the first ferrite factory to be certified by ISO-9002.
	www.allproducts.com.tw /manufacture2/magnet/supplier.html (66 words)

	PERMACOR INC
		., established in 1947, was the first major company organized to produce powdered iron cores for the consumer electronics market.
		Iron materials range from the high-Q carbonyl iron powders to the high-perm electrolytic and atomized powders.
		Likewise, the ferrite materials include high-Q nickel zinc ferrite, as well as high-perm maganese zinc ferrite.
	www.permacor.com (158 words)

	Cores, iron power, ferrites, MPP, High Flux, Sendust toroids specifications sheets
		Iron Powder Cores : Calculating no. of turns (N), inductance values (L) and AL values.
		Iron Powder Toroidal Cores: Table of RF Materials showing OD, ID, Ht, Le, Ae, Ve and AL of
		Iron Powder Core Loss Characteristics II AC RMS Voltage and Current Chart.
	www.cwsbytemark.com /CatalogSheets/spec_sheets.php (495 words)

	Ferrite Cores, Iron Powder Cores, MPP Cores(PA) - Maget Industry Ltd.
		Ferrite Cores, Iron Powder Cores, MPP Cores(PA) - Maget Industry Ltd.
		Iron powder cores and MPP cores available subject to request.
		Ferrite cores for EMI/EMC use, and for power use.
	www.allproducts.com.tw /manufacture2/magnet/pa.html (119 words)

Try your search on: Qwika (all wikis)