Anodizing Titanium
Date:2012-11-06 10:56 Source:未知 Author:admin Click:
Anodizing Titanium
Anodizing most closely resembles standard electroplating. The transparent oxide increases in thickness in relation to the applied voltage. At any given voltage the oxide will grow to a specific thickness (i.e. color).
How are colors produced on titanium?
Titanium reacts with oxygen to form a clear oxide, TiO2. This clear oxides filters out light waves, producing brilliant colors. As the thickness of oxide varies, so will color. Oxides form naturally on titanium leaving the metal a gray color, but applied heat and or electrochemical treatment will increase the oxide thickness to produce a spectrum of color similar to a rainbow. This same filtering effect can be seen in colors on soap bubbles.
When the oxide is of a thickness to generate interference colors, its depth is measured in angstroms (Å=1/100,000,000 centimeter). This layer can vary in thickness from 500 to 1,000Å+ depending on the color. It is not the oxide itself that is perceived by the viewer, but its effect on light waves.
Because colors are optically created you can see subtle differences in the amount and/or shade of color from morning to twilight hours of the day. The angle of viewing, and type of light source will also influence color.
How to care for colored titanium?
TiO2 oxide is surface oxide of titanium, and if not properly cared for the colored surface will be altered by abrasion. In order to maintain this beautiful surface, please take care of the following items:
Wash with a soft sponge, or cloth using mild detergent.
Do not use cleansers which contain abrasives, or abrasive sponges. Abrasive cleansers and sponges can wear or thin the oxide layer resulting is a change of color change the color.
Avoid metal to metal contact that may cause scratching of the surface.
Dry using a soft cloth.
Anodizing most closely resembles standard electroplating. The transparent oxide increases in thickness in relation to the applied voltage. At any given voltage the oxide will grow to a specific thickness (i.e. color).
Titanium reacts with oxygen to form a clear oxide, TiO2. This clear oxides filters out light waves, producing brilliant colors. As the thickness of oxide varies, so will color. Oxides form naturally on titanium leaving the metal a gray color, but applied heat and or electrochemical treatment will increase the oxide thickness to produce a spectrum of color similar to a rainbow. This same filtering effect can be seen in colors on soap bubbles.
When the oxide is of a thickness to generate interference colors, its depth is measured in angstroms (Å=1/100,000,000 centimeter). This layer can vary in thickness from 500 to 1,000Å+ depending on the color. It is not the oxide itself that is perceived by the viewer, but its effect on light waves.
Because colors are optically created you can see subtle differences in the amount and/or shade of color from morning to twilight hours of the day. The angle of viewing, and type of light source will also influence color.
TiO2 oxide is surface oxide of titanium, and if not properly cared for the colored surface will be altered by abrasion. In order to maintain this beautiful surface, please take care of the following items:
Wash with a soft sponge, or cloth using mild detergent.
Do not use cleansers which contain abrasives, or abrasive sponges. Abrasive cleansers and sponges can wear or thin the oxide layer resulting is a change of color change the color.
Avoid metal to metal contact that may cause scratching of the surface.
Dry using a soft cloth.
