Surface Oxidation Behaviour of Cubic BN Powders
2014 ◽
Vol 602-603
◽
pp. 544-547
Keyword(s):
In order to improve the sinterability of the cBN, surface oxidation treatment was conducted to form a B2O3 film on the surface of the cBN powders. The cBN powders (d50 = 7.5 μm) were used as original powders. The heat treatment processes were 500, 800, 900, 950, 980 and 1000 °C holding for 30 minutes, respectively. The oxidation reactions which probably happened were calculated based on the thermodynamics. The experimental results showed that the oxidation starting temperature of cBN powders was higher than 800 °C. The higher the oxidation temperature, the greater the mass gain of the cBN powders.
2018 ◽
Vol 18
(1)
◽
pp. 125-135
Keyword(s):
2017 ◽
Vol 4
(24)
◽
Keyword(s):
2019 ◽
Vol 553
◽
pp. 012034
2007 ◽
Vol 336-338
◽
pp. 505-508
2013 ◽
Vol 347-350
◽
pp. 1171-1175
◽
Keyword(s):