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- 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
-
- 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....
-