netneut
finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing


Finishing.com has been free for 22 years,
but without net neutrality we could soon
cease to exist. Do us a solid, click on
the banner, and contact congress today!
HomeFAQsBooksHelpWantedAdvertiseForum
topic 4796

Coating/bonding metal on alumina


(2000)

Hi,

I am a grad student looking for a different methods to join alumina tubes to metal tubes. Currently, use metal compression fittings to make a high pressure, high temp seal on a heavy-wall alumina tube (3/8"OD) closed-ended tube and have it connect up to metal fittings (using something similar to a swagelok system). Have success most of the time.

I am looking to "bond" metal ferrule/sleeve to the ceramic tube by bonding metal to ceramic and then brazing metal sleeve to the metal coated on the ceramic.

Just how strong are the metal-to-ceramic bonds?

Is there a metal-to-metal connection technique that won't weaken the ceramic-to-metal bond?

Typically, how thick is the metal coating?

Can the coating area be controlled (I only need the outer area coated (L~2 cm), but don't want the inside of the tube coated)?

Can anyone recommend some companies for low quantities?

Any other ideas/techniques?

In the archives, I found references to electroless processes (601). I would really love to be able to search the entire archives at once-either have one big file with all the letters that I can download or have a search engine. It was a pain to search each Q's file.

Thanks for your help, Michael

Michael Kutney
- Cambridge, Massachusetts

Ed. note: July 2000. Hopefully our recently upgraded search engine , now referenced near the top of this page, meets your needs.



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to 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 may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.