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BN evaporation boat

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Description

BN evaporation boat

Applications

Metal thin film deposition

Basic requirements

Good thermal conductivity, thermal shock resistant, low thermal expansion coefficient, low thermal brittleness

Material Comparison Chart:

Nature density(g/㎝3  ) density(g/㎝3  ) (10-6   / ℃) (Kgf/㎜2  ) (J/㎏*°K) (GPa) (MPa) (MPa) (MPa) (MPa*m0.5     ) (Poisson’s ratio) (℃)
Al2-O3 3.9 3.9 8 1600 880 370 262 2600 380 3.6 0.26 2053
ZrO2 6 6 10.1 1400 400 200 700 1850 690 9.5 0.23 2700
SiC 3.2 3.2 4 2300 700 410 400 3900 550 4.6 0.19 2700
Si3 N4 3.3 3.3 2.3 1500 700 310 524 2500 780 7.7 0.24 1900
Cellon  Sialon 3.2 3.2 3 1600 620 300 450 3500 600 6.5 0.23 1900
WC 15 15 6 1600 390 700 896 6100 550 25 0.18 2870
Glass 2.5 2.5 0.5 1000 740 70 1100 69 1 0.2 2200
BN 2 2 2 220 1850 62 41 143 73 0.13 2600
AlN 3.2 3.2 4.4 1200 730 340 400 2070 350 2.6 0.25 2400
B4 C 2.5 2.5 5.6 3200 930 450 350 2800 400 3 0.15 2450
Steel 7.8 7.8 13.6 126 448 200 520 14 0.3 1450

Brief introduction of boron nitride BN material:

Boron nitride (BN) is a compound of the same number of nitrogen atoms and boron atoms, so its chemical formula is BN.Boron nitride and carbon are polymorphic structures: one of which is similar to diamond and the other one is similar to graphite. The structure similar to the diamond body is now known as the  material whose hardness next to the diamond.  The otherstructure similar to the graphite body is a very practical lubricant.

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