Fabrication of Palladium Layers from Ultrafine Particles Synthesized by DC Plasma

Fabrication of palladium layer having flexible shape and strength was attempted by using ultrafine particles. Continuous process of the preparation of palladium ultrafine particle and their deposition on a filter substrate of stainless steel fiber has been demonstrated. The layer was separated from the filter and/or cracked during the heating due to the following reason; (1) low density of the deposited layer, (2) density distribution along the depth direction of the layer, and (3) stress between the layer and the filter coming from the shrinkage of layer and expansion of filter. To solve the above problem, the layer was compressed and heated under pressure. Uniform and well-contacted layer on the stainless steel filter was successfully prepared.