Aqueous hydrides
AssigneeTeknico Industries, Inc.
InventorG. Kenneth Rice
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Abstract
A coating comprising elemental silicon is electrodeposited on a substrate from an aqueous medium. The plating bath is a solution of what is described as one or more metal hydrides. The metal hydrides of the present invention are provided by combining stoichiometric amounts of metal, alkaline metal hydroxide and water in a preselected proportion by mole percent. The particular proportion is a function of the particular metal. A hydride concentrate is provided which is used in aqueous solution to provide a plating bath.
Claims4
A metal compound formed by combining a metal selected from the group consisting of silicon, aluminum, beryllium, titanium, zinc, and tin, with an alkali metal hydroxide, and water, in the ratio by mole percent as follows:
- ______________________________________ Alkali Metal Metal Hydroxide H.sub.2 O ______________________________________ Silicon 6 1 10 Aluminum 2 1 8 Beryllium 2 1 6 Titanium 5 1 10 Zinc 1 1 6 Tin 5 1 10. ______________________________________
A method of preparing a silicon compound comprising providing silicon, sodium hydroxide, and water in the ratio of 6:1:10 by mole percent, combining silicon and water, adding said sodium hydroxide gradually to prevent excessive heating and allowing the reaction to go to completion.
Dependencies are inferred from the claim text.