High Temperature Arc Ceramic Crucible

The aluminum nitride (AlN) ceramic has high thermal conductivity(5-10 times as the alumina ceramic), low dielectric constant and dissipation factor, good insulation and excellent mechanical properties, non-toxic, high thermal resistance, chemical resistance ,and the linear expansion coefficient is similar with Si,which is widely used in communication components, high power led, power electronic devices and other fields.Special spec products can be produced upon requests. Product Features： 1.Uniform microstructure 2.High thermal conductivity* (70-180 Wm-1K-1), tailored via processing conditions and additives 3.High electrical resistivity 4.Thermal expansion coefficient close to that of Silicon 5.Resistance to corrosion and erosion 6.Excellent thermal shock resistance 7.Chemically stable up to 980°C in H2 and CO2 atmospheres, and in air up to 1380°C (surface oxidation occurs around 780°C; the surface layer protects the bulk up to 1380°C).

Alumina Crucibles are manufactured for more than 20 years and have a skill production technology in different shapes and range of sizes from few milliliters to several liters,these fully dense, high purity an high temperature use,fine grain products find use in a range of high temperature applications such as metal processing / molten glass, rapid thermal cycling, gemstone purification for jewelry industry etc. Majodrity of applications require the ceramic to be impervious, porous forms can also be made on order. Industrial alumina ceramic crucible is used for testing laboratory and a variety of industrial analysis.We can supply 99% and 99.5% alumina ceramic crucible and zirocnia ceramic crucible according to customer's drawings, samples and performance requirement. Alumina ceramic crucibles include: 1.arc alumina crucible 2.square alumina crucible 3.rectangle alumina ceramic crucible 4.columnceramic crucible 5.other shaped alumina ceramic crucible

Industrial alumina ceramic crucible is used for testing laboratory and a variety of industrial analysis.We can supply 99% and 99.5% alumina ceramic crucible and zirocnia ceramic crucible according to customer's drawings, samples and performance requirement. Alumina ceramic crucibles include: 1.arc alumina crucible 2.square alumina crucible 3.rectangle alumina ceramic crucible 4.columnceramic crucible 5.other shaped alumina ceramic crucible Overview of Physical Properties: 1. High chemical etching resistance. 2. High temperature up to 1800°C(Alumina) and 2400°C(Zirconia) 3. Resistant to sudden cold and hot, un-explosive. 4. High density of slip casting.

Pyrolytic boron nitride is a grade of hexagonal boron nitride. It is produced by chemical vapor deposition process to create its solid body and all the boron nitride crystals grow parallel to the surface of which the vapor is deposited on. Due to the nature of CVD process, PBN parts generally are requested the wall thickness not more than 3mm. PBN is also a good choice for extremely high purity of boron nitride. 99.99% is the typical grade. The CVD process give this pyrolytic boron nitride almost perfect layered structure, which leads to anisotropic thermal conductivity, making it an ideal material to make crucibles for crystal growing. PBN Ceramic Applications： -Crystal growth (VGF, LEC Crucible) -Molecular Beam Epitaxy(MBE) Crucible -MOCVD Heater -PBN Infrared Window -Traveling Wave Tube (TWT) (PBN Support Rod) -PBN Coating Graphite -High temperature, vacuum equipment insulator