Tungsten crucible
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Nicholas
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+38 (050) 369-66-30
Supplier KMZ offers a tungsten crucible at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.
Technical characteristics
Tungsten crucibles used in the growing nanotechnology metallic and non-metallic crystals. Similar processes are used for the manufacture of touch screens of laptops and smartphones, led lighting elements, solar cells and lasers. Positive features of tungsten crucible: corrosion resistance, high creep resistance and dimensional stability at operating temperatures of operation.
Manufacturer
Metal tungsten powder is pressed and sintered to the final geometry of the crucible, to meet the requirements of the construction of each furnace. For the manufacture of tungsten crucibles tungsten is used of three degrees of chemical purity of 2N (99% tungsten), 3N (99,9% tungsten), 3N5 (99.95% purity%tungsten).
Characteristics of tungsten crucible
- Molecular weight — 18385 kg/m3;
- Appearance: silver — white;
- Working melting point — 3410 ° C;
- The boiling point is 5900 ° C;
- Density (theoretical) is 19300 kg / m3;
- Thermal expansion (25 °C) — 4.5 µm m-1 K-1
- Tensile strength is 750 MPa;
- Coefficient of thermal conductivity (25 °C) was 1.73 W /cm/ K;
- Modulus of elasticity — 411 HPa;
- The Vickers hardness HV of not more than 3430 MPa;
- Poisson Ratio Of 0.28;
- The electrical resistance of 5.65 µm-27 cm
- Electronegativity according to Pauling — 1.7;
- The latent heat of vaporization (25 °C) is 0.0317 cal /g/ K
- The heat of fusion — of 8.42 Kcal /g mole;
- Heat of vaporization (at 5660 ° C) — 185 Kcal/g atom.
The parameters used tungsten crucibles
| The conditions of manufacture | Dimensions | Precision | Thickness | Tolerances (µm) | ||
| Diameter | Height | Diameter | Height | |||
| Semi-finished products | 10…500 | 10…750 | ±5.0 | ±5.0 | 8.20 | |
| The final product | 10…450 | 10…550 | ±0.5 | ±1.0 | 7…18 | Not less than 2.5 |
Alternative sizes of crucibles are manufactured according to customer’s requirement.
Buy
Supplier KMZ offers to buy tungsten crucible at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.
Supply, price
You can buy a tungsten heater provider KMZ can at an affordable price. The price is formed based on the European standards of production. You can buy a tungsten heater any brand in stock at a reasonable price, you can wholesale or retail.