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Publikováno v:
Insight: Non-Destructive Testing & Condition Monitoring. Jun2011, Vol. 53 Issue 6, p316-320. 5p. 3 Color Photographs, 3 Diagrams, 3 Charts, 5 Graphs.
Publikováno v:
Journal of Nondestructive Evaluation. 30:1-8
Thick (>50 μm) piezoelectric films have been deposited directly on top of steel and aluminum substrates as integrated ultrasonic transducer (IUT) receivers to detect laser generated ultrasound. The film fabrication is based on a sol-gel spray techni
Publikováno v:
International Polymer Processing. 24:375-383
Real-time, non-intrusive and non-destructive ultrasonic technology has been used to monitor the melting process in an internal mixer. Visual observation, mechanical torque measurement, and ultrasonic signatures, such as amplitude and time delay of tr
Publikováno v:
NDT & E International. 42:157-161
Integrated ultrasonic transducers (IUTs) and flexible ultrasonic transducers (FUTs) are presented for nondestructive testing at high temperatures. These transducers are made of sol-gel-sprayed piezoelectric thick (>40 µm) ceramic films. The ceramic
Autor:
C.-K. Jen, Makiko Kobayashi
Publikováno v:
Smart Materials and Structures. 13:951-956
Thick film piezoelectric ceramic sensors have been successfully deposited on different metallic substrates with different shapes by a sol?gel spray technique. The ball-milled bismuth titanate fine powders were dispersed into PZT solution to achieve t
Publikováno v:
NDT & E International. 33:145-153
The fabrication, evaluation and several applications of metallic buffer rods consisting of a core and a cladding are presented. The clad rods can have a taper shape and the cladding is fabricated by thermal spray techniques. Clad rods as long as 1 m
Publikováno v:
Journal of Composite Materials. 33:1860-1881
To produce high-quality composites with high density and low void content, the knowledge of cure process is very important, and the sensors capable of monitoring the cure process are therefore desirable. Since the term of "fully processed" should be
Publikováno v:
Journal of Applied Physics. 85:7863-7868
Basic acoustic properties of five MgO-doped LiNbO3 rectangular parallelpiped specimens, having X-, Y-, and Z-cut planes, with different MgO dopant concentrations ranging from 0 to 13 mol % are investigated by line-focus-beam acoustic microscopy. The
Publikováno v:
Ultrasonics. 37:291-297
Ultrasonic evaluation and application of oriented high density polyethylene (HDPE) rods are presented. Solid state ram extrusion method is used to fabricate such rods. Ultrasonic measurement results indicate that the ultrasonic signal strength and si