Boron Nitride / Pbn Ceramic Crucible for Vacuum Melting

Basic Info.

Model NO.	RY-PBN-0003
Classification	Hybrid Insulation Materials
Certification	ISO9001
Color	White
Item	Pyrolytic Boron Nitride Crucible
Product	Hot Pressed Boron Nitride
Transport Package	Carton
Specification	100-500cc
Origin	Hunan, China
HS Code	8547100000
Production Capacity	5000PCS Per Month

Product Description

Boron Nitride / PBN Ceramic Crucible For Vacuum Melting

Description:
Material: Pyrolytic Boron Nitride / PBN 99.99%
Typical Applications:
1. Spectrometre
2. High temperature furnace
3. Crystal growth
4. LEC crucible, VGF crucible, MBE crucible
5. MOCVD insulation plate
6. Heating element
7. Microwave
8. Semiconductor
9. Composite Heater

Boron Nitride (BN) is a white, low porosity refractory material with physical and mechanical properties similar to Graphite. However, unlike Graphite, Boron Nitride has high thermal conductivity and good thermal shock performance. The most common formulation of Boron Nitride contains boric oxide, which can cause Boron Nitride to absorb moisture, resulting in swelling and property degradation.

Type	99BN	CBN	ABN	ZBN
Main Content	BN>99%	BN>98.5%	BN+AlN	BN+ZrO2
Binder	B2O3	CaB2O6	ALBO3	B2O3
Density (g/cm3)	1.95-2.0	2.0-2.1	2.6	2.95
Flexural Strength (Mpa)	30	100	200	200
Compressive Strength (Mpa)	100	280	350	380
Electrical Resistivity (ohm.cm)	>10^14	>10^13	>10^14	>10^12
Max. Working Temp. (°C) air	900	900	900	1000
Max. Working Temp. (°C) inert gas	2400	2400	2100	1800
Max. Working Temp. (°C) vacuum	2200	2200	1900	1800
Thermal Conductivity (W/m.K)	20	35	50	30
Expansion Coefficient 25 - 1000 °C (10^-6/K)	1.5	2	4.5	2.5