No registration, no passwords; no pop-up ads -- just aloha, fun, & authoritative answers.
As an eBay Partner & Amazon Affiliate we receive compensation for qualifying purchases.
Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub  Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Colour anodising of Ti





I am looking for colour anodising of Ti. I know there are companies that're already doing that, but I want to know the underlying theory behind. I also want to know the properties of the anodised layer. Is there a certain website or literature where I can find out a bit more on the topic?

w.y.wong
- Hong Kong
2000



A quick overview of the process involves passing a low density current through the titanium in an electrolyte. The current forms an oxide layer. This layer is thin and can be worn off or damaged in harsh environments. The oxide difracts light, and depending on the thickness, can appear yellow, gold, copper, blue, green, or violet. If the current density is too high, of if the electrolyte is too warm (above 85 F), the process breaks through the oxide and begins to etch. The resulting grey surface must be polished before another attempt to anodise is made.

Howard Bailey
- Flagstaff, AZ U.S.A.
2000




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"