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Gas Atomization Boron Nitride Ceramic Nozzles Amorphous Soft Magnetic Alloy Spray Tapes

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Gas Atomization Boron Nitride Ceramic Nozzles Amorphous Soft Magnetic Alloy Spray Tapes

Country/Region	china
City & Province	zhengzhou henan

Product Details

Hot-Press Boron Nitride BN nozzles for amorphous soft magnetic alloy spray tapes and metal powders gas atomization

Boron nitride belongs to the hexagonal system. Its structure is similar to graphite, and their properties are also similar. Therefore, it is also called " white graphite". It has good heat resistance, thermal stability, thermal conductivity, high temperature dielectric strength, and is an ideal heat dessipating material and high temperature insulatiing material. Mohs Hardness 2 can be processed into various shaped parts.

Performance

Operating temperature: 1900℃ in vacuum, 2100℃ in the case of nitrogen, argon and other inert gases, and 900℃ in the case of oxidation resistance.
It has extremely strong thermal shock resistance and can be cooled rapidly for 15 minutes at 1000 degrees to room temperature for 100 times without cracking.
It has good corrosion resistance, good chemical stability and small thermal expansion coeffcient.
Excellent electrical performance: excellent insulation at high temperature, which will not significantly decease with the incerase of temperature. The breakdown voltage is 3KV/MV, the low dielectric loss is 2.5x10-4 at 108HZ, and the dielectric constant is 4, which can penetrate microwave and infrared ray.
With many metals, glass solution does not bod does not react.

The main products of Boron Nitride Ceramics

Hot pressing hexagonal boron nirtride ceramic and boron nitride composite ceramic, includes:

Insulation tubes, sleeve, and parts for vacuum furnace
nozzles for amorphous soft magnetic alloy spray tapes and metal powders gas atomization
horizontal continuous casting separation rings/crystal tubes
crucibles, composite ceramic molds
TiB2/graphite composite ceramic cathodes for electrolytic aluminum
graphite/BN ceramic composite evaporator boats for vacuum evaporation and aluminum plating
large and medium-sized vacuum hot pressing furnaces
large size hot pressing molds, etc.

Boron Nitride Nozzle Basic Information & Materials

Typical Properties	BN-H	BN99	BN-Ca	BN-A	BN-B	BN-C	BN-D	BN-E
Composition	hBN>99%	hBN>99%	hBN>98.5%	hBN+AL+SI	hBN+AL+ZR	hBN+SIC	hBN+ZrO₂	hBN+ALN
Binder	B₂O₃	B₂O₃	B₂O₃	B₂O₃+Al₂O₃+SiO₂	B₂O₃+Al₂O₃	B₂O₃	B₂O₃+Al₂O₃	B₂O₃+Al₂O₃
Color	White	White	White	White Graphite	White Graphite	Greyish-Green	White Graphite	Greyish-Green
Typical Density (g/cm³)	1.55~1.6	1.85~1.98	1.98~2.03	2.25~2.35	2.25~2.35	2.40~2.50	2.25~2.95	2.45~2.95
Thermal Properties
Max. Using Temperature (°C) In Air In Inert In Vacuum	900 2100 1900	900 2100 1900	900 2100 1900	1000 1750 1750	1000 1700 1700	1000 1700 1700	1000 1800 1800	1000 1800 1800
Thermal Expansion (RT·1000 °C ) (10-6/K)	1.5	1.5	1.5	2	2	2.8	3.5	2.8
Thermal Conductivity (W/mk)	15	35	35	30	30	40	30	85
Electrical and Mechanical Properties
Electrical Resistiity (Ω/cm)	>10¹⁴	>10¹⁴	>10¹⁴	>10¹³	>10¹³	>10¹²	>10¹²	>10¹³
Bending Strength (MPa)	28	30	30	65	65	80	90	90
Compressive Strength(MPa)	50	55	55	145	145	175	220	220
Typical Applications	high-temperature Vacuum	High-Temperature Vacuum	High-Temperature Vacuum	Powder Metallurgy	Powder Metallurgy	Powder Metallurgy	Metal Casting	Powder Metallurgy
lnlustratior for High-Temperature Furnace	✓	✓	✓	✓	✓	✓	✓	✓
Crucibles for Metal Evaporation	✓	✓	✓					✓
Parts for Melting Metals or Glass	✓	✓	✓	✓	✓	✓	✓	✓
Casting Mold for Metals or Alloys		✓	✓		✓
Support Parts for High-Temperature		✓	✓					✓
Pipes or Nozzles for Liquid Metal Handling		✓	✓	✓	✓	✓	✓	✓
Crucibles for Ceramic Sinter	✓	✓	✓		✓			✓