Станки для лазерной резки Пиролитический нитрид бора Керамическая подложка PBN

Станки для лазерной резки Пиролитический нитрид бора Керамическая подложка PBN

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Станки для лазерной резки Пиролитический нитрид бора Керамическая подложка PBN

Нитрид бора БН керамика:

OLED crucible is a PBN crucible used in OLED and CIGS evaporation technology. With its ultra-high purity, химическая инертность, 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 namedwhite graphitesince 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. Также, 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, 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.
Особенности продукта
Отличный электрический изолятор
Максимум. 2000 °C Использовать температуру
Высокая стойкость к тепловому удару
Низкий КТР
Низкая смачиваемость расплавленными металлами
Легкая обрабатываемость

 

Свойства материала
Technical Parameter
Единица измерения
HPBN
ПБН
Плотность
г / см3
2.2~2.3
2.1-2.19
Впитывание воды
%
0
0
Твердость по Виккерсу
ГПа
(Moh’s=2)
(Knoop=691)
Предел прочности при изгибе (20° C)
МПа
100
243.63
Прочность на сжатие (20° C)
МПа
287
Теплопроводность (20° C)
Вт / м.К
35
43-60
Стойкость к тепловому удару (20° C)
Δ Т(C)
Максимальная температура использования
° C
2400
2200
Объемное сопротивление (25° C)
Ом.см
10 ^ 8~10 ^ 13
3.11×10 ^ 11

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