Oxygen reduced niobium oxides
AssigneeCabot Corporation
InventorsJonathon L. Kimmel, Ricky W. Kitchell
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Abstract
Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter material, and for a sufficient time and at a sufficient temperature to form an oxygen reduced niobium oxide. Niobium oxides and/or suboxides are also described as well as capacitors containing anodes made from the niobium oxides and suboxides. Anodes formed from niobium oxide powders using binders and/or lubricants are described as well as methods to form the anodes.
Claims26
The method of forming an anode comprising the steps of pressing a mixture of niobium oxide powder with at least one binder or lubricant to form the pressed anode, wherein said niobium oxide has an atomic ratio of niobium to oxygen of 1:less than 2.5.
A pressed anode comprising a niobium oxide powder and at least one binder or lubricant, wherein said niobium oxide powder has an atomic ratio of niobium to oxygen of 1:less than 2.5.
Dependencies are inferred from the claim text.