Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

World's #1 on-line resource since 1989

-----

Sample prep for SEM



2002

My company has recently upgraded our SEM, and we wish to start looking at the pores of an anodized coating (H2S04). To this point we have had very little success. Can someone reccomend proper sample preparation? The SEM is capable of 100k magnification, so we believe that we should be able to look at the porous structure of the coating.

Thanks in advance for any advice.

Marc Green
Marc Green
anodizer - Boise, Idaho


First of two simultaneous responses -- 2002

I'm not sure about an anodized surface, but when I was playing with SEM and circuit boards I always gold sputtered them.

James Totter
James Totter, CEF
- Tallahassee, Florida


Second of two simultaneous responses -- 2002

Marc, are you using an environmental SEM (one of those you can backfill with a low pressure of gas to bleed off charge, then use backscatter imaging) or are you coating with gold? I'd suspect the sputter coating with gold would be a better method, as secondary imaging has a lot more resolution than backscatter.

If you want to send me a sample, I'll look at it in our SEM (Amray 3200, with environmental mode- but we've kept our sputter coater) and e-mail you some photos. [Contact information has been sent in private.]

lee gearhart
Lee Gearhart
metallurgist - E. Aurora, New York

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start 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    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA