Sunrise Metal targets and cathodes made from titanium-aluminum (TiAl) ensure that drills, milling machines, indexable cutting inserts and other tools are protected by a hard, oxidation-resistant nitride coating (TiAlN).
High feed speeds, excellent cutting performance and impressive metal removal rates: not a problem for titanium-aluminum-based coatings. A coating of just one thousandth of a millimeter of our materials reliably protects your tools against wear and therefore extends their service life. TiAl targets and cathodes are also used fordecorative coatings on electronic devices such as cellular phones, on spectacle frames or on the dials of luxury watches.
Sunrise Metal materials are applied using either the reactive magnetron sputtering method or arc evaporation and form in a nitrogen atmosphere a nitride hard material layer on the substrate.
Sunrise Metal TiAl targets are popular due to their:
- High ductility
- High thermal conductivity
- Homogeneous microstructure
- Unbeatable level of material purity
Whatever the geometry - rotary or planar arc cathodes or planar sputtering targets: Sunrise Metal can supply tailor-made targets that are perfect for your application.
| The most important facts | ||||||
|---|---|---|---|---|---|---|
| Titanium/aluminum content [at%] | 25 / 75 | 30 / 70 | 33 / 67 | 40 / 60 | 50 / 50 | 75 / 25 |
| Purity [%] | 99.7 | 99.7 | 99.7 | 99.7 | 99.7 | 99.7 |
| Guaranteed density [g/cm3] | 3.11 | 3.20 | 3.26 | 3.38 | 3.56 | 4.00 |
| Standard / fine grain size [µm] | 100 / 50 | 100 / 50 | 100 / 50 | 100 / 50 | 100 / 50 | 100 / 50 |
| Thermal conductivity [W/(m·K)] | 115 | - | 102 | - | 61 | 30 |
| Coefficient of thermal expansion [1/K] | 21 · 10-6 | 18 · 10-6 | 16 · 10-6 | 13 · 10-6 | ||
High ductility. Long service life.
During the coating process, our sputtering targets and arc cathodes have to withstand a lot. The material at the edge of the target can be exposed to forces of up to one tonne during coating. Whereas brittle materials would break under the strain, the presence of the element aluminum makes our material particularly ductile. To guarantee the ductility of the TiAl targets, the aluminum must beextremely evenly distributed. That is why we mix our titanium-aluminum powder very carefully before compacting the material using a forming process. As a result, the microstructure of our materials is significantly more homogeneous and fine-grained than in materials produced using a melting process. The benefit to you of our powder metallurgical production process: particularly breakage-resistant, long-lived targets.
Cool metals. Smooth layers.
During the coating process, our targets and cathodes are exposed to high temperatures. However, our material doesn't feel the heat. Thanks to their aluminum content and high material density, our cathodes and targets offer particularly high thermal conductivity and can easily transfer the heat to a copper plate located behind them. If heat is allowed to build up, the target material is removed unevenly and droplets form on the surface of the tool coating. But because our targets keep their cool, a smoother coating is guaranteed.
Our optimum microstructure. Your perfect coating.
Coarse or fine metal powder? Forging, HIP or other axial forming methods? We vary and combine our different production processes to make sure that the coating you finally use is particularly smooth and fine. And in everything we do, we have one aim in mind: ensuring an optimum microstructure for our targets and cathodes. During coating, this means that significantly fewer droplets form on your product. The result: outstandingly smooth coating layers.
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