Hi. I was asked to post this link here by another member. Several experts offered suggestions regarding the materials of working parts if one attempts to use ultrasonics in liquid nitrogen:
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Ultra-sonication in liquid nitrogen
- Thread starter hick12
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JamesGarry
Aerospace
- May 30, 2012
- 3
(wow - I may be too late - but...)
PZTs can be found that will work perfectly well at liquid nitrogen temperatures. Indeed, I've personally used bimorph discs as sonar elements at 95K without a hitch and have dunked them in LN2 with no ill-effects. However the bonding method used to attach the transducer to the vessel may need investigation
Indeed, plain ol' 304L will be fine for a vessel - 9% Ni steels are nice only for their long-term robustness.
Cheers;
-James Garry
Red Core Consulting ltd.
PZTs can be found that will work perfectly well at liquid nitrogen temperatures. Indeed, I've personally used bimorph discs as sonar elements at 95K without a hitch and have dunked them in LN2 with no ill-effects. However the bonding method used to attach the transducer to the vessel may need investigation
Indeed, plain ol' 304L will be fine for a vessel - 9% Ni steels are nice only for their long-term robustness.
Cheers;
-James Garry
Red Core Consulting ltd.
- Status
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