Tungsten/molybdenum crucible and other parts can be used for sapphire crystal growth and rare-earth melting due to their high temperature resistance, low pollution and other excellent characteristics.we both spin-formed and sintered crucibles and otherparts (including heaters, heat insulation screens, sheets and supports, etc.) used in the
This crucible for use in growing a sapphire single crystal has a cylindrical inner vessel which consists either of molybdenum and unavoidable impurities or of a tungsten-molybdenum alloy having a tungsten content of 0.1 to 60 mass% and unavoidable impurities and which has a bottom that has a thickness of 0.3 to 2mm and that is integrally formed
Graphite Crucible A crucible is a container used to hold metal for melting in a furnace and it is needed to withstand the extreme temperatures encountered in melting metals. The crucible material must have a much higher melting point than that of the metal being melted and it must have good strength
Because molybdenum melting point 2610 ℃, molybdenum crucible is widely used in sapphire crystal growth furnace, quartz glass melting furnace, industrial furnace, such as rare earth smelting furnace is the core of the container, its use working temperature environment generally above 2000 ℃.
Molybdenum possesses high melting point, low coefficient of thermal expansion and high level of thermal conductivity, these properties make molybdenum used in many different industries. EdgeTech Industries LLC provides tailor made pure molybdenum, TZM Alloy and Mo-La Alloy parts, send your drawings to [email protected] .
For heat treatment of sapphires, varicolored sapphires (fancy sapphire) and Geuda qualities under reducing atmospheres, HT-1800 furnaces with a useful volume of 3-22 l are used. Due to heating elements made of molybdenum or tungsten and special insulation, heat treatment of up to 1750°C under hydrogen is possible.
It is an important part of the high-temperature furnace because of its high melting point. Tungsten crucible and other pure tungsten & molybdenum parts can be used for sapphire crystal growth and rare-earth melting due to their high temperature resistance, low pollution and other excellent characteristics.
* Welded Crucibles. Large crucibles with thinner wall thickness, we recommend welded molybdenum crucibles. Applications of Molybdenum Crucible . With a high corrosion resistance to most acids and many molten materials such as glass or metals, molybdenum crucibles are ideal for the metallurgy, mechanism, and rare earth smelting industries.
Molybdenum is a veritable "generalist" in special materials that widely used in industrial belt and filament material, power electronics industry with semiconductor base plate, the high-temperature furnace glass melt electrode, and hotspot as well as the solar energy cell and plane display sputtering coating with palladium materials.
2.Widely used for producing reflecting screen and cover inside sapphire crystal growth furnace, as well as reflecting screen, heating tape and connection inside vacuum furnace; 3.Molybdenum sheets are also applied in sputtering target of materials plasma coating, high temperature resistant boat, etc.
Cold Crucible Induction Melting is an innovative process for melting particularly reactive metals using a water cooled metallic crucible to virtually eliminate contamination. Applications of the resulting materials include titanium gold club heads, specialized automotive parts and much more.
can crack at the cool down process and the crucible can only be used once. Any of these sapphire crystal growing technologies have in common that core components - particularly crucibles - are requiring high-temperature refractory metals. Depending on the growing method crucibles are made of molybdenum or tungsten, but the metals are also
Molybdenum (Mo)Metal : CRM material co.,limited supply many kinds of pure Molybdenum metal product. For Molybdenum have some advantage in chemical and physical, it used widly in High-temperature furnace, glass and crystal producing, vacuum plating, illumination, rare earth.Now china rare metal material can supply Molybdenum block, rod, tube, plate, foil, wire, substrate, sputtering target
Edgetech Industries LLC supplies all kinds of tungsten crucibles (crucible body and lid, round crucible, tapered crucible, customized square & rectangular crucible) and pure metal parts (heaters, heat insulation screens, sheets and supports, etc.), which is used in the process of sapphire growth and rare-earth melting.
Oxygen and Nitrogen Determination in Refractory Metals and . Oxygen and Nitrogen Determination in Refractory Metals and Their Alloys LECO Corporation; Saint Joseph, Michigan USA Introduction Titanium is a metal that can be combined with elements such as aluminum, vanadium, molybdenum, and tin to produce high-strength, low density, and corrosion-resistant alloys.
TETLOW KILNS AND FURNACES PTY. LTD. - manufacturer of industrial and laboratory furnaces, aluminum melting, holding crucible or bath furnaces, magnesium melting furnaces, burnout lost wax furnaces, heat treatment furnaces, spare parts for kilns and furnaces - temperature controllers / programmers, heating element controls, heating elements.
Thin Solid Films, 39 (1976) 297-303 0c Elsevier Sequoia S.A., Lausanne-Printed in the Netherlands 297 COATINGS ON GRAPHITE CRUCIBLES USED IN MELTING URANIUM* J. W. KOGER, C. E. HOLCOMBE AND J. G. BANKER Union Carbide, Oak Ridge Y-12 Plant, Oak Ridge, Tenn. 37830 (U.S.A.) (Received March 23, 1976; accepted July 20, 1976) Standard coatings for graphite crucibles used for melting uranium have
of the sapphire crystal. Crucibles used to melt the sapphire were made of molybdenum sheet spun into sizes which varied from 6-l/2,' to 18" in diameter. A taper was designed into the crucible to change the gradient between the graphite resistance heater and the crucible. A helium recirculator was employed to remove heat from the crucible and
(sapphire) is a candidate material for various window furnace technique has been developed for the growth of cm in diameter and 1.5 cm thick, from the melt in molybdenum crucibles. The disks are free of gas bubbles and inclusions and con- sist of several large pie-shaped grains.