Pyrolytic Boron Nitride (PBN) Products

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Pyrolytic Boron Nitride (PBN) Coating

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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.

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Pyrolytic Boron Nitride (PBN) Coating
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.
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Product Instruction:

In High temperature, high vacuum, and High purity environment, PBN is usually used as coating material to protect the graphite. PBN coating can avoid the graphite heating unit to volatilize in high temperature.

Product Feature:

High insulativity
Low outgassing in high temperature
Coating can combined with substrate tightly, not easy to peel off
High resistivity to chemical corrosion in high temperature
High density and effectively prevent volatilization of substrate

Parameter of PBN:

Properties	Units	Values
Density	g/cm³	1.95-2.20
Tensile Strength	MPa	112
Bending Strength	MPa	173
Compression Strength	MPa	154
Young's Modulus	GPa	18
Thermal Conductivity	W/m°C	"a" 60 "c" 2
Specific Heat	J/g·℃	0.90（RT）
Resistivity	Ω.cm	2×10¹⁵
Dielectric Strength	D.C. volts/mm	2×10¹⁵
Dielectric Constant		"c" 3.07
Metal Impurity Content	ppm	<10

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