Керамический рукав из нитрида бора для печи

Керамический рукав из нитрида бора для печи

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Керамический рукав из нитрида бора для печи

Boron nitride ceramic is chemically and has relatively good thermal conductivity, low thermal expansion and microwave clarity. нитрид бора can be quickly machined as well. Moreover, стекло, salts and the rest of liquid metals are non-wetting. This ensures that neither of these compounds can be moistened, and it is far more immune to chemical assaults.Hexagonal boron nitride (h-BN) performs very well under high heat condition and is effective in the air at temperatures of up to 900 degrees C, in the vacuum at 1,900 degrees C and in the inert environment at 2,000 degrees C. BN is self-lubricating as well,как результат, it does not need the use of molecules of gas or water stuck in its layers. Because of this, in a vacuum, which is important for aerospace applications, boron nitride (БН) can work perfectly.

Характеристики

1. Высокая теплопроводность
2. Хорошая стойкость к тепловому удару
3. Низкое тепловое расширение
4. Exceptional heat resistance
5. Good chemical Inertness
6. High electrical resistance
7. High volume resistivity
8. Low dielectric constant and loss tangent
9. Excellent machinability

Приложения

1. Electronic partsheat sinks, substrates, coil forms, prototypes
2. Vacuum melting crucibles
3. CVD crucibles
4. Microcircuit packaging
5. Sputtering targets
6. High precision sealing, brazing, and metallizing fixtures
7. Microwave tubes
8. Horizontal caster break rings
9. Low friction seals
10. Plasma arc insulators
11. High temperature furnace fixtures and supports

Свойства материала
Boron Nitride Properties:
Теплопроводность
(40-50)Вт/м·k
Thermal expansivity
(6.5-7.5)*10-6 ° C
Resistivity
>1012 Ом·м
Puncture voltage
(2.5-4.0)*106 /kv·м
Диэлектрическая постоянная
3.8-4.3
Прочность на изгиб
>35mpa
Сила сжатия
>200mpa
Плотность
1.9—2.2 g/cm3
Рабочая температура
Oxidizing Atmosphere
850° C
Vacuum and inertia
2000° C

Керамический рукав из нитрида бора для печи

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