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Refractory Crucibles
Crucibles are vessels or melting pots made of extremely refractory materials such as clay, graphite, china clay, or metals that are harder to melt. Mainly used for evaporation, concentration or crystallization of solutions, burning solid substances.
Description
Product details:
Alumina crucibles are also called corundum crucibles. The shape mainly includes cylindrical, conical, arc, saggar and other shapes. The alumina corundum crucible is made of high-purity alumina (containing more than 99% of AL203), which is resistant to high temperature, corrosion, and erosion. chemical stability and thermal shock resistance. It can be used at 1650 ℃ for a long time, and can also be used at temperatures up to 1750 ℃. It is an ideal container for melting materials, industrial analysis and sample experiments. It is widely used in metallurgy, chemical industry and material science.
Product Feature:
The surface of 99 alumina ceramic crucible is smooth and dense, wear-resistant, fired in a 1780 degree electric kiln, and can withstand high temperature.
Product Application:
Various laboratory, non-metal sample analysis, used in chemical laboratory and industrial analysis, etc.
Product Specification:
Properties | Unit | Steatite ceramic | 95% Al2O3 | 99% Al2O3 | Zirconia Ceramic |
Density | g/cm³ | 2.7 | 3.6 | 3.8 | 5.6 |
Flexural strength | Mpa | 145 | 300 | 300 | 354 |
Hardness | Gpa | 5.7 | 7 | 10.7 | 12.3 |
Elastic modulus | Gpa | 120 | 275 | 320 | 205 |
Poissons ratio | - | 0.21 | 0.22 | 0.22 | 0.30 |
Linear expansion coefficient | x 10-6/℃ | 7.9 | 7.1 | 7.8 | 9 |
Thermal conductivity | w/(m.k) | 2.5 | 20 | 25 | 2.5 |
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