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US 4,904,500 AGranted
Diffusion of elements into steel by catalyzed oxide reduction
AssigneeExxon Research & Engineering Co.
InventorRichard C. Krutenat
Life of this patent
Estimating the term…
Abstract
A process for diffusing silicon into iron or iron alloy by heating the iron or iron alloy with silica and a suitable reducing agent in the presence of a catalyst.
Claims7
A process for diffusing silicon into iron or an iron alloy comprising heating said iron or iron alloy in the presence of silica with a reducing agent and a catalyst;
- said heating being conducted at a temperature and for a time sufficient to reduce said silica to silicon and to diffuse the silicon into said iron or iron alloy.
Dependencies are inferred from the claim text.