Texas Instruments Offers Platinum-Clad Anodes For Corrosion Protection —Literature Available
Texas Instruments has developed a platinum-clad niobium material that has been demonstrated to provide excellent protection for steel structures exposed to corrosive conditions such as underwater (both sea and fresh water) or underground environments.
The material works in an impressed current protection system (ICP). It is available in three forms—mesh, wire, and probe— depending on application conditions.
The mesh material has been successfully demonstrated through years of use to protect underwater pier structures. The probe material is designed for protection of vessels containing or transporting water, as well as underwater structures. The wire material has been shown to successfully prevent corrosion of steel reinforcing bars in concrete structures.
Texas Instruments clad platinum anodes offer significant advantages.
The cladding process provides a coating that is uniformly thick, non-porous and has excellent bond integrity.
Experience has shown that the combination of platinum clad on niobium is well suited to impressed current protection applications.
In service, the platinum remains electrochemically active while the substrate forms an adhesive oxide film that is corrosion resistant. The anodes are said to have higher current-carrying capacity and longer life than designs using other anode materials.
Texas Instruments produces platinum-clad anode materials using a solid phase, cold-bonding process. The material is clad at a heavy gauge and subsequently cold rolled to a finished thickness. The composite structure has a uniform, non-porous platinum surface that interfaces directly with the niobium substrate. Because the metals are joined at the atomic level without adhesives, solder or brazing alloy, they are void-free and cannot be separated.
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