Titanium (Ti) coatings have long been valued in the coating industry as protective coatings, due to their high hardness and good phase stability. Titanium (Ti) coatings are now widely used in hard material coating and tooling applications. The great advantage of a titanium coating is the very good price-performance ratio, as titanium coatings are among the cheapest coatings. A major disadvantage, however, is the oxidation that occurs at temperatures above 600 °C. This is the reason why titanium coatings are so expensive. Any oxidation that occurs impairs the mechanical properties of the coating and leads to a drop in performance.
However, if silicon (Si) is alloyed with titanium, the coating shows significantly improved oxidation properties at high temperatures. Machining tools with a titanium-silicon (TiSi) coating can therefore be used without coolant, as these tools can withstand high temperatures much better. This means that tools with a titanium-silicon (TiSi) coating can be used in the limit range, especially at high temperatures.
Many titanium-silicon (TiSi) coatings today are alloyed with 10 at%, 20 at% and up to 34 at% silicon content. The hardness and formability of TiSi coatings increase with increasing silicon content. TiSiN coatings can be deposited using either magnetron sputtering or arc evaporation processes.
The quality of any coating also depends to a large extent on the quality of the target and cathodes. All of our targets are powder metallurgically manufactured, making the quality of our metal powders critical. Since most of our targets and cathodes are produced in Germany, we have direct control over the manufacturing process and can therefore guarantee the quality.
We can offer titanium silicon (TiSi) targets and cathodes in any shape, size and composition. TiSi 66/34 at% (Ti34Si) we can offer especially in the size 500x88x10 as mixed target.