HELP...find ultrasonic sensor for nuclear station application

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Article #439

#439

From: Gary Truemner
Date: Fri, 08 Jan 1993 14:45

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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 remote automated Ultrasonic flaw detection in hostile
environment:
-Lithiated heavy water (Ph-10) at 300ª C, 1500psi. (10MPa)
-High radiation fields (>1 Mrads gamma + neutrons)

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.   

------      |        |Truemner@ice3.kcps.rd.hydro.on.ca
|        |      |        |   GARY TRUEMNER (416)207 6380 FAX:(416)237 9285 
|        |      ------ONTARIO HYDRO.Automated NDT&Welding.R&D Lab     
|        |      |        |800 Kipling Ave.M/S KR172.Toronto.Ontario.M8Z 5S4
------      |        |   _a Never Ending Story believer.avoid the NOTHING

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Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!ohrd!usenet
From: Gary  Truemner <truemner@rd.hydro.on.ca>
Subject: HELP...find ultrasonic sensor for nuclear station application
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