Pyrolytic Boron Nitride Disc

With its high density and purity, Pyrolytic Boron Nitride Disc is becoming a widely used material in vacuum processes.

SKU: PBN-D

Pyrolytic Boron Nitride Discs, PBN Ceramic Disc

Pyrolytic Boron Nitride belongs to the hexagonal system and is an advanced ceramic material with a purity of up to 99.999%. It is acid and alkali-resistant, anti-oxidant, has good thermal conductivity, is dense, and can be processed. It is made by chemical vapor deposition (CVD) of ammonia and boron halides under high temperature and high vacuum conditions. It can be used to prepare Pyrolytic boron nitride discs and plates, as well as directly prepare PBN final products such as crucibles, boats, and coatings.
It is different from 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.

Pyrolytic Boron Nitride Specification

Item		Value		Unit
Lattice constant		a:2.504×10^-10		μ m
		c:6.692×10^-10
Density		2.0-2.19		g/cm3
Resistivity		3.11×10¹¹		Ω·cm
Tensile strength (ab)		153.86		N/mm2
Bend strength	c	243.63		N/mm2
	ab	197.76		N/mm2
Elastic modulus		235690		N/mm2
thermal conductivity		“a” direction	“c” direction
	(200℃)	60	2.60	W/m·k
	(900℃)	43.70	2.80	W/m·k
Dielectric strength (at RT)		56		KV/mm

Characteristics for PBN products

-Non-toxic and odorless
-High purity, reaching more than 99.999%
-Does not react with acids, alkalis, salts, and organic reagents at room temperature, slightly corrodes in molten salts and alkali solutions, but can resist corrosion from various acids at high temperatures
-Does not react with most molten metals, semiconductors, and their compounds
-Good oxidation resistance below 1000℃
-Good thermal shock resistance, no cracks found when immersed in water at 2000℃
-High operating temperature, no sublimation point, directly decomposes into B and N above 3000℃
-High resistance, good electrical insulation performance;
-Smooth surface, no pores, non-wetting with most semiconductor melts

Pyrolytic Boron Nitride Disc from Edgetech Industries Ceramics Division can withstand high temperatures in a high vacuum environment, it has excellent corrosion resistance and electrical resistance. Based on the above excellent properties, Boron Nitride Disc is an ideal choice in a wide range of industries.

Packing

As a ceramic material, PBN is quite fragile in a lot of cases. Our Pyrolytic PBN Disc is carefully handled to minimize damage during storage and transportation. Suitable outer boxes and inner cushioning materials are used for PBN products, vacuum packing is also engaged for some of the parts.