DocumentCode :
2054174
Title :
Alumina ceramic 10 in flotation spheres for deep submergence ROV/AUV systems
Author :
Stachiw, J.D. ; Peters, Donald
Author_Institution :
Stachiw Associates, Rockport, TX, USA
fYear :
2005
fDate :
2005
Firstpage :
164
Abstract :
A casting process for ceramic spherical flotation units with nominal 10 in OD has been developed by Custom Ceramic Technology utilizing 99.9 percent Al2O3 for operation on an ROV/AUV in all ocean depths. With their 0.42 weight to displacement ratio, they provide more lift per pound of their dead weight in air than syntactic foams for 36,000 ft (11,000 m) depths. With their critical implosion pressure of ≥37,000 psi (255 MPa) they provide a margin of safety >2 for operation at 36,000 ft (11,000 m), >4 at 20,000 ft (6097 m) and >8 at 10,000 ft (3,048 m). Because of their high margin of safety at depths ≤20,000 ft they are also acceptable for service on manned submersibles at depths ≤20,000 ft (6097 m).
Keywords :
alumina; oceanographic equipment; remotely operated vehicles; underwater vehicles; Al2O3; Custom Ceramic Technology; alumina ceramics; ceramic spherical flotation units; critical implosion pressure; dead weight; deep submergence ROV/AUV system; syntactic foams; weight-to-displacement ratio; Casting; Ceramics; Fabrication; Glass; Oceans; Porcelain; Production; Remotely operated vehicles; Safety; Underwater vehicles;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS, 2005. Proceedings of MTS/IEEE
Print_ISBN :
0-933957-34-3
Type :
conf
DOI :
10.1109/OCEANS.2005.1639756
Filename :
1639756
Link To Document :
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