Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN

Placa pirolítica do nitreto de boro PBN do isolador elétrico
Anel de arruela isolante cerâmico industrial de nitreto de boro poroso
Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN
Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN 1
Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN
Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN 1

Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN

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Máquinas de corte a laser Substrato cerâmico pirolítico de nitreto de boro PBN

Cerâmica BN de nitreto de boro：

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. Também, 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, copo, 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,como resultado, 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.
″* 4″
Excelente isolador elétrico
Máx.. 2000 °C Usar temperatura
Alta resistência ao choque térmico
CTE baixo
Pouco umedecido por metais fundidos
Fácil usinabilidade

 

Propriedades do Material
Technical Parameter
Unidade
HPBN
PBN
Densidade
g / cm3
2.2~2.3
2.1-2.19
Absorção de água
%
0
0
Dureza Vickers
Gpa
(Moh’s=2)
(Knoop=691)
Resistência à Flexão (20° C)
Mpa
100
243.63
Força compressiva (20° C)
Mpa
287
—
Condutividade térmica (20° C)
W/m.K
35
43-60
Resistência ao choque térmico (20° C)
D T(C)
—
—
Temperatura máxima de uso
° C
2400
2200
Resistividade volumétrica (25° C)
Eletrônica de Potência
10 ^ 8~10 ^ 13
3.11×10 ^ 11

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