Article View: sci.materials
Article #432Re: HELP...find inorganic, sputtered sealant for sensor crystal
From: William E. Johns;S23015
Date: Mon, 11 Jan 1993 21:40
Date: Mon, 11 Jan 1993 21:40
38 lines
2355 bytes
2355 bytes
In article <1993Jan8.142920.24591@rd.hydro.on.ca> Gary Truemner <truemner@rd.hydro.on.ca> writes:
>We would appreciate ANY info RE: a material and/or process to seal (from water
>absorption) and also electrically insulate a piezo-electric ceramic crystal,
>to be used for Ultrasonic flaw detection in hostile environment:
>-Lithiated heavy water (Ph-10) at 300 C, 1500psi. (10MPa)
>-High radiation fields (>1 Mrads gamma + neutrons)
>
>__repost NEW:
>Material used must be inorganic since organics do not survive the radiation
>fields.
> Ceramic adhesive & sealants do not lend themselves well to this assembly. We
>are
>thinking along the lines of using sputtering or some such process to acheive
>the
>adherence neccessary.
On the off-hand chance you haven't tried all possible sources, consider:
Cotronics Corp.
3379 Shore Parkway
Brooklyn, NY 11235
(718) 646-7996
These folks make ceramic and other systems for high temperature and otherwise
difficult environments. They may have something you can use. Then again, maybe
not, won't cost that much to check out.
Ride Free,
Bill
___________________________________________________________________
johnsw@wsuvm1.csc.wsu.edu prez=BIMC KotV KotRR
DoD #00314 AMA #580924 Squid Index 3.0 WMTC #0002 KotD #0001
Yamabeemer fjgs1200pdr100 and a Volvo. What more could anyone ask?
We have secretly replaced the small, precision quartz timing crystals
in these new IC's with improved Folger's crystals. Now, let's watch
what happens....
Technical Details
Message-ID:
<1993Jan11.214058.22159@serval.net.wsu.edu>Path:
arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!howland.reston.ans.net!spool.mu.edu!uwm.edu!ogicse!news.u.washington.edu!serval!wsuaix.csc.wsu.edu!billReferences:
<1993Jan8.142920.24591@rd.hydro.on.ca>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!howland.reston.ans.net!spool.mu.edu!uwm.edu!ogicse!news.u.washington.edu!serval!wsuaix.csc.wsu.edu!bill From: bill@wsuaix.csc.wsu.edu (William E. Johns;S23015) Newsgroups: sci.materials Subject: Re: HELP...find inorganic, sputtered sealant for sensor crystal Message-ID: <1993Jan11.214058.22159@serval.net.wsu.edu> Date: 11 Jan 93 21:40:58 GMT Article-I.D.: serval.1993Jan11.214058.22159 References: <1993Jan8.142920.24591@rd.hydro.on.ca> Sender: Bill Johns Distribution: na Organization: Washington State University Lines: 38