PBN rings can reach 99.999% purity...
PBN rings can reach 99.999% purity and can be heated up to 2300°C under vacuum without decomposition and without releasing gaseous miscellaneous. These properties make PBN rings used in high temperature, vacuum, MBE and OLED applications as support frames, insulators and spacers.
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PBN Ring is applied widely in the effusion cell of OLED production. Heeger Materials supplies Pyrolytic Boron Nitride (PBN) Ring with high-quality and at a competitive price.
Pyrolytic Boron Nitride (PBN) is a kind of advanced ceramic, can be produced with 99.999% purity in high density. It made by ammonia and Boron halide through Chemical Vapor deposition(CVD) process in high temperature and high vacuum condition: NH3 +BX3=BN+3HX, it can be produced as PBN plates, and also can be produced as PBN final products directly like crucible, boat, coating, etc.
"a" 60 "c" 2
Metal Impurity Content