Boron Nitride Ceramic Sleeve for Furnace

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Boron Nitride Ceramic Sleeve for Furnace

Boron nitride ceramic is chemically and has relatively good thermal conductivity, low thermal expansion and microwave clarity. نيتريد البورون can be quickly machined as well. Moreover, glass, 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,نتيجة ل, 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 (BN) can work perfectly.

ملكيات

1. الموصلية الحرارية العالية
2. استقرار جيد ودقة في القوة
3. تمدد حراري منخفض
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

التطبيقات

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

خصائص المواد
Boron Nitride Properties:
توصيل حراري
(40-50)W/m·ك
Thermal expansivity
(6.5-7.5)*10-6 درجة مئوية
Resistivity
>1012 Ω·م
Puncture voltage
(2.5-4.0)*106 /kv·م
ثابت العزل الكهربائي
3.8-4.3
Bending strength
>35mpa
Compression strength
>200mpa
كثافة
1.9—2.2 g/cm3
درجة حرارة العمل
Oxidizing Atmosphere
850درجة مئوية
Vacuum and inertia
2000درجة مئوية

Boron Nitride Ceramic Sleeve for Furnace

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