Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate

عازل كهربائي لوحة نيتريد البورون الحراري PBN
حلقة غسالة عازلة من السيراميك الصناعي من نتريد البورون المسامي
Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate
Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate 1
Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate
Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate 1

Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate

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Laser cutting machines Pyrolytic boron nitride PBN ceramic substrate

Boron nitride BN ceramic：

OLED crucible is a PBN crucible used in OLED and CIGS evaporation technology. With its ultra-high purity, chemical inertness, excellent high temperature resistance and high temperature stability, it is widely used in metal and semiconductor evaporation.
we produce several advanced ceramic parts with fine engineered ceramics, and one of those is Hexagonal Boron Nitride. We generally choose a form known as hexagonal boron nitride (h-BN). Hexagonal BN is a composite of boron and nitrogen that is both heat and hemically resistant. It is the most robust crystalline type of boron nitride, along with graphite. Since it has a composition identical to graphite, although you will even hear it named “white graphite” since it is white in colour. What is more, hardness of hexagonal BN is similar to graphite, so it is very easily to machine the parts into required shape, only one small tip,machining work should be process in dry conditions with no cooling liquid. ايضا, visible dust can be created during machining, so wearing mask and goggle is necessary.
Boron nitride ceramic is chemically and has relatively good thermal conductivity, low thermal expansion and microwave clarity.Boron nitride 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.
مواصفات المنتج
Excellent Electrical Insulator
الأعلى. 2000 °C Use Temp
High Thermal Shock Resistance
Low CTE
Low Wetted by Molten Metals
Easy Machinability

 

خصائص المواد
Technical Parameter
وحدة
HPBN
PBN
كثافة
ز / سم 3
2.2~2.3
2.1-2.19
أمتصاص الماء
%
0
0
صلابة فيكرز
المعدل التراكمي
(Moh’s=2)
(Knoop=691)
قوة العاطفة (20درجة مئوية)
الآلام والكروب الذهنية
100
243.63
قوة الضغط (20درجة مئوية)
الآلام والكروب الذهنية
287
—
توصيل حراري (20درجة مئوية)
W / مك
35
43-60
مقاومة الصدمة الحرارية (20درجة مئوية)
Δ T(ج)
—
—
أقصى درجة حرارة للاستخدام
درجة مئوية
2400
2200
حجم المقاومة (25درجة مئوية)
أوه. سم
10 ^ 8~10 ^ 13
3.11×10 ^ 11

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