Siliconizing

siliconizing

[′sil·ə·kə‚nīz·iŋ]
(metallurgy)
Diffusing silicon into solid metal at an elevated temperature.

Siliconizing

 

the surface or volume saturation of a material with silicon. Siliconizing is effected by treating the material either in silicon vapors, which are formed above a silicon charge at high temperatures, or in a gaseous medium containing chlorosilanes. The chlorosilanes are reduced by hydrogen, for example, according to the reaction SiCl4 + 2H2 = Si + 4HC1. Siliconizing is used primarily as a means of protecting refractory metals (W, Mo, Ta, Ti) from oxidation. Resistance to oxidation is brought about by the formation of dense, self-healing, diffused suicide coatings (WSi2, MoSi2) during the siliconizing process. Siliconized graphite has found widespread application. [23–1081–]

References in periodicals archive ?
What makes a release liner work is silicone, and Evonik Goldschmidt Corporation, Hopewell, VA, USA, is a company that specializes in siliconizing substrates.
The ability7 of free radical UV silicones to cure on any substrate offers the possibility for siliconizing over print to produce linerless labels.
Some specific topics examined include plasma spray coatings of sol-gel ceramic nanopowders, PVD coatings to enhance service performance of die casting dies for aluminum alloy, and technical aspects of pulsed CVD siliconizing of steel surfaces.
Dow Corning, Midland, Michigan, USA said its new Syl-Off[R] Advantage Series high-speed, solventless silicone coating system has set a new world speed record for siliconizing paper at 1610 meters/min.
At 1610 meters per minute (60 miles per hour), Dow Corning's new Syl-Off Advantage Series high-speed, solventless silicone coating system has set a new world speed record for siliconizing paper.
Before the sheet passes to the automatic double-turret winder, it undergoes surface treatment and cooling in units that perform edge trim, gauging of thickness, siliconizing, and lamination.
It consists of a vibratory feeder, pretreating section, four-color print station, uv dryer, and siliconizing station.
Haul-off unit and siliconizing facility for preparatory treatment for the assembly and the coil winders - wrapping complete the line.
Mondi Packaging Coating & Release is a supplier of plastic and paper based materials, providing technologies such as extrusion coating, laminating, siliconizing, and printing.
The company's on-line papermaking and siliconizing machine can produce high quality release papers with efficiencies not seen on conventional off-line siliconizing machines.
Production of roll and sheet label stocks centers on a new 40" wide and 190' long coating and siliconizing line--based entirely on hot-melt adhesives--with two new slitters.
5 foot wide coating and siliconizing line at its Helsingborg mill in southern Sweden.