Various embodiments of an electrical component and a method of forming such component are disclosed. The electrical component includes a substrate having a first major surface, a second major surface, an alloy layer disposed on the first major surface of a substrate, and tantalum material disposed on the alloy layer such that the alloy layer is between the tantalum material and the first major surface of the substrate. The tantalum material includes bonded tantalum particles. The electrical component can also include a dielectric layer disposed on the tantalum particles, a cathode electrode disposed over the tantalum material, and an anode electrode disposed on the second major surface of the substrate.