| 摘要 |
Refractory metal articles having hither than normal impurity levels of concentrations of additive species near the surface that promote chemically enhanced sintering without any adverse effect on function properties, including, among others, tantalum or niobium lead wires that form assemblies useful as electrolytic capacitor anodes and the like, as made by surface oxidation of the wire, embedding a wire end in a loose mass of the powder and sintering to producing assemblies of enhanced structural integrity and affording stable electrical characteristics of electrical devices including such assemblies.
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