No registration or passwords; no pop-up ads -- just aloha, fun, & answers.
(as an eBay Partner & Amazon Affiliate earns from qualifying purchases).
Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Chem Milling of FeCrAl Films




I'm looking for a chemical milling/polishing solution that can cleanly remove sputtered FeCrAl film from a Kapton substrate. The film is masked with photoresist to obtain a pattern. Sputtered film thicknesses range from 50 to 200 angstroms and the nominal composition is Fe-20Cr-5Al. Electropolishing is not applicable and I prefer that the solution not contain HF acid.

W. Steven Spear
Seattle WA
1999



Durney's Electroplating Engineering Handbook has several bright dips which may dissolve the iron and chrome and lift off the small amount of aluminum. There is one using low concentrations of oxalic acid, H2O2, and H2SO4. Good Luck, Tom

tom pullizzi monitor   tom pullizi signature
Tom Pullizzi
Falls Township, Pennsylvania
1999




(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"