Zirconia castable cement
Rescor® Castable Ceramics are available in 6 refractory compositions offering the ultimate selection of ceramics to the materials engineer. Now, an unlimited number of high temperature applications, requiring custom ceramic shapes, can be easily solved. Just mix the ceramic powders with their liquid activators and pour into any non-absorbent moulds.
Rescor® Castable Ceramics harden overnight to produce highly detailed ceramics, usable to 4000°C. They offer excellent resistance to high temperature, thermal shock, molten metals, oxidizing and reducing atmospheres, erosion, most acids and alkalise.
Rescor® 760 is resistant to a temperature of 2200°C. It is the cement with the highest temperature resistance of our entire range. It also has a very good resistance to chemical attack. This cement becomes electrically conductive when the temperature exceeds 900°C.
Technical data of ZR02 castable cement
|
Composition |
Units |
Rescor® 760 |
|
Base |
ZrO2 |
|
|
Grain size (min-max) |
µm |
≤45 - 600 |
|
Density |
g/cm3 |
4.0 |
|
Max Temperature |
°C |
2200 |
|
Shrinkage (after curing at room temperature) |
% |
~0 |
|
Shrinkage (540°C) |
% |
1.0 |
|
Compressive Strength |
N/cm2 |
2750 |
|
Breaking Strength (900°C) |
N/cm2 |
820 |
|
Thermal Conductivity |
W/m.K |
0.94 |
|
Expansibility |
10-6.K-1 |
10.1 |
|
Breakdown |
kV/mm |
conductor |
|
Mix (weight) Base |
100 |
|
|
Catalyser |
18 |
Rescor 760 - Moldable Ceramic, Zirconium Oxide
FAQs that can help you in this category
For foundry moulds Final Advanced Materials produces alumina, silicon carbide, silica or zirconia-based cements, which are suited for temperatures between 1,200 and 2,200°C. Zirconia formulations are particularly suitable if a very high resistance to chemicals is required. Alumina cements have better mechanical resistance (>40 MPa in compression). SiC cement is a very good option for molten metal casting, launders, crucibles or nozzles. The choice depends on the cast metal and the temperature (e.g.: aluminium ~700°C, steel >1,500°C) and the thermal shock resistance.