370 results about "Titanium surface" patented technology

The invention relates to a method for making a TiO2 nano hole array material and an application thereof. Firstly, a titanium plate undergoes surface treatment and is used as an anode, and in the organic electrolyte solution of hydrofluoric acid or fluoride with the fluorine content of between 0.1 and 10wt%, the titanium plate undergoes the anode oxidation under the voltage of between 10 and 80V for 20 to 100h; after a loose film layer on surface of titanium metals is removed, the titanium based titanium oxide nano hole array materials formed by titanium metals and titanium oxides on titanium surface are obtained with the pore diameter of the materials is between 60 and 400, and the pore depth is between 10 to 250nm; the materials are sintered at the temperature of between 300 and 700DEG C for 0.5 to 1.5h, and the TiO2 nano hole array materials with a certain crystalline phase composition are obtained. The TiO2 nano hole array material of the invention has the advantages that the TiO2 is firmly connected with a matrix, so that the material is strong in withstanding external mechanical acting forces and resisting the stress deformation and cracking caused by the change of ambient temperature; moreover, the material is high in stability, therefore the material is widely applied to such fields as chemical oxygen demand sensors used in photoelectrocatalysis and water pollution monitoring.

The invention relates to a method for preparing a calcium hydrophosphate micro-nanofiber conversion coating on a pure-titanium surface. A method that under the proper pH-value condition, a chemical conversion solution carries out chemical conversion treatment on the pure-titanium surface is adopted, and a chemical conversion solution is a solution composed of the proper amount of phosphoric acid, compounds containing calcium ions, zinc ions and dihydrogen phosphates, and an accelerant; and according to chemical conversion treatment, a pure-titanium sample obtained after proper activation treatment and surface adjustment is coupled with pure iron, then, ultrasonic field manufacturing and water bath heating are carried out, and the calcium hydrophosphate micro-nanofiber conversion coating on the pure-titanium surface is obtained. A phase of the conversion coating prepared on the pure-titanium surface through the method is a CaHPO4 2H2O crystal, and a crystal aggregate can induce and promote formation of hydroxyapatite (HA) in simulated body fluid; and the formed conversion coating is of a micro-nano fiber-shaped structure close to a human body multi-level micro-nano structure, and the method has the important significance in regulating and controlling cells, the tissue reaction and the like.