A target of tantalum
Supplier — the company AvekGlob — offers at affordable prices from the manufacturer tantalum targets. The supplier guarantees the timely delivery of products to any address specified by the consumer /
Technical specifications
Tantalum is silver metal, with a characteristic luster, which is distinguished by high corrosion resistance. Initial ingots for the production of all types of rolled metal from tantalum are ingots. Further, the metal is cold rolled to the required thickness and then, if necessary, mechanical or plastic treatment.
Urgency of application
Tantalum ingots used in the production of tantalum spraying targets are molten electron beams and are inherently high in purity due to a combination of high vacuum parameters, slow melting rates, several oven passages and careful monitoring of all aspects of processing.
Tantalum sputtering targets make thin coatings through a sputtering process for the metallization of copper compounds, magnetic recording media, printer components, flat displays, optical and industrial glass and thin film resistors.
These goals meet stringent standards of cleanliness and dimensional tolerances. The sizes of the target forms range from small research cathodes to large 100-pound flat targets. Typical thicknesses range from 0.2 to 0.7 inches, but the thickness can be up to 1.5 «and above Typical diameters from 3 to 18 inches Typical rectangles are 6 to 30 inches or more depending on the needs of customers
Chemical composition
The composition of the metal used for the production of tantalum targets, as impurities, includes the following elements (in thousandths of a percent)
Elements |
99.95% Ta | 99.98% Ta | 99.99% Ta |
99.995% Ta |
| Max | Max | Max | Max | |
| Al | 10 | 5 | 1 | 0.5 |
| Ca | 10 | 5 | 1 | 1 |
| Cl | 3 | 3 | 1 | 1 |
| Co | 10 | 5 | 1 | 0.5 |
| Cr | 10 | 5 | 1 | 0.5 |
| Cu | 5 | 5 | 1 | 0.5 |
| Fe | 50 | 20 | 5 | 1 |
| K | 2 | 2 | 0.4 | 0.1 |
| Li | 1 | 1 | 0.5 | 0.05 |
| Mg | 10 | 5 | 1 | 0.5 |
| Mn | 10 | 5 | 1 | 0.5 |
| Mo | 50 | 20 | 10 | 10 |
| Na | 1 | 1 | 0.4 | 0.4 |
| Nb | 300 | 100 | 100 | 50 |
| Ni | 20 | 10 | 5 | 1 |
| Pb | 5 | 5 | 1 | 1 |
| Si | 10 | 10 | 1 | 0.5 |
| Sn | 10 | 5 | 1 | 1 |
| Ti | 10 | 5 | 1 | 1 |
| V | 5 | 5 | 1 | 1 |
| W | 150 | 100 | 80 | 50 |
| Zn | 5 | 5 | 1 | 1 |
| Zr | 20 | 10 | 5 | 1 |
Physical and mechanical properties
- Density, kg / m 3 — 16400;
- Melting point, 0 С — 3017;
- Specific heat capacity, J / kggrad — 170;
- Modulus of elasticity, GPa — 185.7;
- The limit of temporary resistance, MPa — 900;
- Hardness according to Brinell, HB, not more than — 195;
- Coefficient of thermal conductivity, W / megade — 54.4;
- The coefficient of thermal expansion in the temperature range 20… 100 0 С, μm / deg — 6.5.
Assortment and application features
The sizes of tantalum targets range from small research cathodes to large flat plates weighing up to 0.4 kg. Typical thicknesses range from 0.25 to 2 mm, but individual orders can be larger. Typical diameters from 7 to 40 mm. Typical rectangles in sizes from 20 to 80 mm or more, depending on the needs of the client. It is possible to supply tantalum targets with controlled texture, which lead to uniform characteristics of deposition of a thin film throughout the life of the product.
Supplier — AvekGlob company — offers to buy tantalum targets in assortment of sizes. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.