Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
 
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Electrically isolating, thermally conductive coating for SST




January 31, 2008

I am looking to coat stainless steel with an electrically isolating, but thermally conductive coating. It has to stand up to about 500C operating temp & be somewhat "tough". Any suggestions?

Steve Ayres
product designer - Northville, Michigan



First of two simultaneous responses -- February 2, 2008

Hello Steve,
Although it seems to be joking the best heat conductor among electric isolators (dielectrics) is diamond. Really. But seriously, PTFE is quite good heat conductor, but very good eletric isolator.

Best regards

Janusz LABEDZ
Aurotech - Warsaw, Poland



Second of two simultaneous responses -- February 2, 2008

Its just a matter of how thermally conductive and how electrically insulating you want it to be. If I remember well based on physics, most anything that is a good thermal conductor is also a good electrical conductor. All plastics are out, obviously. Ceramics are also out. Maybe only some intermetallic compounds but they will be very thin, like Titanium nitride or similar.

Guillermo Marrufo
Monterrey, NL, Mexico



February 7, 2008

It should be coating of less or equal to 2-5 micron thickness made from dialectic such as Al2O3, MgO, CaO or similar. The specific conductivity is very low, and thermo conductivity will good enough for such thin layers.

anna_berkovich
Anna Berkovich
Russamer Lab
supporting advertiser
Pittsburgh, Pennsylvania
russamer labs banner



February 21, 2008

Depending on financial aspects diamond is really an alternativ to think about! It can be plated as DLC (diamond like carbon) via PVD.

Greets from Munich
Franz

Franz Gassner, chemist
Automobile production - Munich, Bavaria, Germany


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



(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    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA