Pyrolytic Boron Nitride (PBN), High purity Boron Nitride 99.999%

Pyrolytic Boron Nitride (PBN), High purity Boron Nitride 99.999%

Pyrolytic boron nitride (PBN) is an advanced ceramic material with hexagonal crystal system. Its purity can reach 99.999%. It is acid and alkali resistant, oxidation resistant, good thermal conductivity, compact and Machinable. It is formed by chemical vapor deposition (CVD) of halides of ammonia and boron under high temperature and high vacuum conditions. It can be used to prepare PBN plate, crucible, boat, coating and other final products.

Different from the ordinary hot pressed boron nitride (BN), it does not need to go through the traditional hot pressing sintering process and does not add any sintering agent

(1) Non toxic and tasteless;

(2) The purity is higher than 99.999%;

(3) It does not react with acid, alkali, salt and organic reagent at room temperature, and slightly corrodes in molten salt and alkali, but can resist the corrosion of various acids at high temperature;

(4) It does not react with most molten metals, semiconductors and their compounds;

(5) Under 1000 ℃, the oxidation resistance is good;

(6) The thermal shock resistance is good and no crack is found in water at 2000 ℃;

(7) It has high temperature and no sublimation point. It can be decomposed into B and n directly above 3000 ℃;

(8) High resistance, good electrical insulation performance;

(9) The surface is smooth without pores, and is not wet with most semiconductor melts.

application

(1) OLED evaporation unit

(2) Crucible for semiconductor single crystal growth (VGF, LEC)

(3) Molecular beam epitaxy (MBE) evaporation crucible

(4) MOCVD heater

(5) Polycrystalline synthetic boat

(6) PBN infrared window

(7) Microwave tube for satellite communication

(8) PBN coated tray

(9) Insulation board for high temperature and high vacuum equipment