NiCrAlY alloys are a family of thermal spray coating materials that are known for their excellent resistance to oxidation and hot corrosion. Coatings of these materials are used as bond coats for ceramic top coats or by themselves to resist corrosion at temperatures up to 980 C (1800 F) if applied using atmospheric plasma spray (APS), or up to 1050 C (1920 F) if applied using HVOF or ChamPro controlled atmosphere plasma spray (LPPS, LVPS or VPS). The chromium and aluminum in these coatings provide protection through the formation of an oxide scale. The addition of yttrium acts to improve the adhesion of this oxide layer. This dense, well-adherent scale is critical for the prolonged life of high temperature ceramic coating systems such as thermal barrier coatings and ceramic abradable systems. The alumina acts as an oxygen diffusion barrier that helps to minimize bond coat oxidation. The chromium oxide scale is beneficial to combat hot corrosion and sulfidation. In these applications, higher chromium to aluminum ratios are typically better for chromium oxide scale formation. Amdry 962 and the Amdry 962x family of materials have a general-purpose chemistry that is used for many applications requiring high-temperature oxidation resistance."" excl. VAT and MSEUR€42.57excl. VAT and MS
