Accession Number : ADD002929
Title : Process for Producing Stabilized Anatase Titanium Dioxide Surfaces for Durable Adhesive Bonding.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Hamilton,Willard C ; Wegman,Raymond F
Report Date : 23 Dec 1975
Pagination or Media Count : 4
Abstract : The conventional phosphate-fluoride process for treating titanium parts to produce anatase titanium dioxide surfaces for adhesive bonding, which includes (1) an acid pickling bath step, (2) a phosphate-fluoride bath step, and (3) a warm bath step, is modified by adding about 2%, by weight, of an alkali metal sulfate, such as a neutral sulfate of sodium or lithium to the bath in any of steps (1), (2) and (3) to stabilize the anatase surface and thereby prevent transformation thereof to the undesirable rutile structure.
Descriptors : *Titanium, *Surface finishing, *Patents, Titanium oxides, Adhesive bonding, Phosphates, Fluorides, Pickling, Crystal structure, Sodium sulfates, Alkali metal compounds, Sulfates, Lithium compounds
Subject Categories : Coatings, Colorants and Finishes
Metallurgy and Metallography
Distribution Statement : APPROVED FOR PUBLIC RELEASE