Boron Nitride Ceramic Sleeve for Furnace
- وصف
- سؤال
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
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
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
Boron Nitride Properties: | ||
توصيل حراري | (40-50)ث / م·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