Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico

Piastra PBN in nitruro di boro pirolitico isolante elettrico
Porous boron nitride industrial ceramic insulator washer ring
Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico
Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico 1
Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico
Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico 1

Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico

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Macchine da taglio laser Substrato ceramico PBN in nitruro di boro pirolitico

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. Anche, 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, bicchiere, 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,Prima dell'applicazione dei prodotti Si3N4 o Sialon/Syalon, 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.
caratteristiche del prodotto
Excellent Electrical Insulator
Ra0.1. 2000 °C Use Temp
High Thermal Shock Resistance
Low CTE
Low Wetted by Molten Metals
Easy Machinability

 

Proprietà dei materiali
Parametro tecnico
si forma un eutettico rame-ossigeno che si lega con successo sia al rame che agli ossidi usati come substrati
HPBN
PBN
si forma un eutettico rame-ossigeno che si lega con successo sia al rame che agli ossidi usati come substrati
e facilita il trasporto del calore del metallo fuso nel tubo del gambo. Ciò può ridurre la temperatura dell'alluminio fuso e risparmiare sui costi energetici complessivi
2.2~2.3
2.1-2.19
Assorbimento dell'acqua
%
0
0
Tubo di protezione al nitruro di silicio
Tubo di protezione al nitruro di silicio
(Moh’s=2)
(Knoop=691)
Resistenza alla flessione (20°C)
Mpa
100
243.63
Resistenza alla compressione (20°C)
Mpa
287
—
Tubo di protezione al nitruro di silicio (20°C)
W/m.K
35
43-60
Resistenza agli shock termici (20°C)
D T(C)
—
—
Temperatura massima di utilizzo
°C
2400
2200
Resistività di volume (25°C)
oh cm
10 ^ 8~10 ^ 13
3.11×10 ^ 11

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