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