| Hot-pressed BN Shapes |
Hot-pressed BN and its composites are characterized of high refractoriness, erosion resistance of molten metal and slag, high thermal conductivity, high insulativity and easy machining. They can be used for break ring of H.C.C, nozzle of Fe-based amorphous strip, container of melting nonferrous metal and thermocouple sheath, etc.
Hot-pressed BN Composites Properties |
|
Properties |
Unit |
Index |
BN/ZrO2 |
BN/Si3N4 |
BN |
BN |
©‡ |
>90 |
>85 |
>99 |
B2N3 |
©‡ |
<1 |
<1 |
<2 |
ZrO2 |
©‡ |
8 |
- |
3-5 |
Si3N4 |
©‡ |
- |
>10 |
- |
D.B. |
g/cm3 |
1.9-2.1 |
1.8-1.9 |
1.8-2.0 |
M.O.R. |
MPa |
>90 |
>110 |
>80 |
T.C.R |
W/M¡¤K |
>15 |
>17 |
>25 |
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