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  • noun

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a binary compound of carbon with a more electropositive element

References in periodicals archive ?
Sintered tungsten carbides have a thermal expansion coefficient that typically ranges from 4.
The tiny fibers of silicon carbide used to strengthen airplane wings and mountain bike frames just became a lot tinier.
com/research/a3561e/china_silicon_carb) has announced the addition of the "China Silicon Carbide Industry Report, 2010-2011" report to their offering.
The second stage comprised of evaluating metallic matrix--iron carbides and ferrite/pearlite ratio.
The cemented carbide wear parts market that Crafts serves is estimated at about $250 million annually in North America, growing to $325 million by the year 2000.
However, the material has limited machinability (grinding only), requires segregated returns (if carbides are as-cast) and may require additional operations/costs (if carbides are welded on or engineered carbides are cast-in).
In the absence of enough Mn, S has a marked stabilizing action on the cementite and promotes carbides (chill).
It will evaluate and identify the most important variables affecting the mechanical properties and carbide formation in thin-wall ductile iron castings and to suggest the most economical ways of reducing or eliminating the formation of these carbides.
This examination revealed that the intercellular carbides appeared to have multiple phases.
009% cerium and bismuth and use of fade-resistant and potent inoculants for a higher nodule count (thereby minimizing the formation of carbides in thin sections);
As the inoculant dissolves, its composition traverses this vertical section and increases the stability of graphite and silicon carbides (SIC).
2 illustrates the presence of primary carbides in a ferritic structure and in structures that contain both ferrite and pearlite.
Chill occurs when the iron becomes undercooled enough to form carbides instead of graphite and pearlite.
In gray iron, inoculation promotes the formation of type A graphite, improves machinability, reduces chill, eliminates carbides, refines the microstructure and, under certain conditions, increases tensile strength.
The elimination of chill, carbides and free ferrite is the function of cooling curve control.