carbides


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Related to carbides: carbonates

carbides (kar´bīdz),

n 1. in chemistry, carbon binary compounds with strong electron-releasing properties.
2. mixtures of carbon with at least one heavy metal. E.g., the bur, or metal alloy bit, of a dental drill has a composition of tungsten carbide.
References in periodicals archive ?
Therefore, it is advisable to specify "HIP" treated tungsten carbides, especially when they are intended for critical applications.
In addition to silicon carbide, the researchers produced titanium, niobium, iron, and boron carbide rods, reports Charles M.
Fueled by the demand from such downstream sectors as PV, LED, and ceramics, China's silicon carbide output substantially increased in 2010 to 1.
Trial heats using SiC and higher MgFeSi additions exhibited the greatest amount of iron carbides due to the considerably higher residual magnesium levels.
Low Mn concentrations can result in carbides, chill, finer graphite, more pearlite matrix and more erratic casting properties.
The late-inoculation was much more effective in increasing nodule count and reducing carbides and thereby improving elongation of both sections.
Historically, the formation of carbides in cast iron has been minimized with proper inoculation materials and techniques.
2% of silicon carbide and/or 75% ferrosilicon (FeSi);
In a Ductile Iron Society study, a Sr-containing FeSi outperformed all other commercial inoculant tested when avoidance of carbides in the 3.
The presence of primary carbides in the structure also can reduce mechanical properties.
First, if the initial undercooling of the solidus dips below the carbide eutectic temperature, carbides can freeze out the liquid.
For ductile iron, inoculant addition ensures good machinability, eliminates carbides, increases nodule counts, reduces chill and refines the microstructure.