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Alfa iron: An allotropic modification of iron which crystallises in the b.c.c stystem and is stable below 9120C.
Ferrite: is the term applied to substanitially pure alfa-iron occuring in iron-carbon alloys. it is precipitated durng the cooling of steels containing less than 0.85%C, and is called to distinguish it from the iron the eutectoid
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What is the difference between pearlite and cementite?
Well, basically, pearlite is the eutectic composition of steel, with an overall composition of 0.8% carbon. It is known to consist of two phases, namely: Ferrite (Fe), the room temperature of iron and Cementite(Fe3C). Therefore, the difference between pearlite and cementite is that pearlite is a composition of steel, and cementite is a composition of Pearlite. So cementite is part of pearlite.
Is iron III oxide a molecular compound why?
No. Iron III oxide is an ionic compound. This is due to the large difference in electronegativity between oxygen and iron. If the electronegativity difference is greater than 2.0 a compound is generally ionic. The difference between iron and oxygen is 2.61.
What is the difference between alpha and gamma alumina?
Alpha alumina has cubic crystal structure, and gamma - rhombohedral (i.e. it is a "skewed cubic") Due to their geometry the typical surface area of a particle is affected, and alpha alumina has fewer -OH groups than gamma alumina. Iron oxide can also have either alpha or gamma structure, and is described on wiki http://en.wikipedia.org/wiki/Iron(III)_oxide
What is the difference between the two compounds FeBr2 and FeBr3?
The main difference between FeBr2 and FeBr3 is the oxidation state of iron. In FeBr2, iron has a +2 oxidation state, whereas in FeBr3, iron has a +3 oxidation state. This results in different chemical and physical properties for the two compounds.
What are ferrous metal and non ferrous?
Ferrous metals are those that contain iron, such as steel and cast iron. Non-ferrous metals do not contain iron, such as aluminum, copper, and tin. Ferrous metals are typically magnetic, while non-ferrous metals are not.
What does ferrite mean in spanish?
Ferrite - also known as alpha iron - comes from the Latin word for iron, ferrum.
What is the difference between pearlite and ferrite?
Pearlite is a layered structure of ferrite and cementite formed by the eutectoid reaction in steel, while ferrite is a pure form of iron in its BCC crystal structure. Ferrite is soft and ductile, while pearlite is harder due to the presence of cementite.
Is there a crystaline form of iron?
Yes there are a number. The stable form at normal temperatures is alpha- iron, or ferrite. This is magnetic. At higher temperatures iron converts into gamma iron and then at even higher temperatures delta iron. These different forms have slightly different properties from alpha iron- and these are exploited when iron is worked or turned into steel.
Which is more soft phase ferrite or austenite in iron carbon diagram?
Pretty sure it is ferrite
What is the difference between pearlite and cementite?
Well, basically, pearlite is the eutectic composition of steel, with an overall composition of 0.8% carbon. It is known to consist of two phases, namely: Ferrite (Fe), the room temperature of iron and Cementite(Fe3C). Therefore, the difference between pearlite and cementite is that pearlite is a composition of steel, and cementite is a composition of Pearlite. So cementite is part of pearlite.
What is calcium ferrite?
Calcium ferrite is a compound composed of calcium and iron oxides, often used in the production of cement. It is a crystal structure formed by the combination of calcium oxide (CaO) and iron oxide (Fe2O3). Calcium ferrite contributes to the strength and durability of cement-based materials.
What is the name of the ore of iron?
hematite, taconite, and ferrite
What is the difference between an alnico magnet and ferrite magnet?
The term alnico is derived from the names of three metals, aluminum, nickel, and cobalt, which can be used to make an alloy that has useful magnetic properties. Ferrite is a form of iron. Alnico magnets are more powerful and more expensive than ferrite magnets.
What is the difference between iron oxide and ferrite?
Oxidation is the process by which iron oxide, and all other forms of rust, occur. Oxidation is the process by which a substance containing a metal reacts with the oxygen in the air. Chrome, for example, rusts perfectly transparent. This property is what keeps chrome shiny. I thin layer of ChromeOxide develops over the surface of the object, protecting the rest of the chrome from further oxidization.
Which materials are magnets?
In general only the ferrite group : iron, nickel, cobalt. Other material may be alloyed with these, but the ferrite group is essential.
What is the difference between iron smith and blacksmith?
no difference
What is the carbon concentration of an iron-carbon alloy for which the fraction of total ferrite is 0.94?
The carbon concentration of an iron-carbon alloy for which the fraction of total ferrite is 0.94 is 0.06. Since the fraction of ferrite in the alloy is 94/100, the fraction of carbon must be 6/100 to make a total of 100/100.
