Managing pipe damaged by Stress Corrosion Cracking (SCC) has been a formidable challenge to the pipeline industry. The development of a practical solution for the measurement and evaluation of SCC has been marred by the complexity of crack shapes, their distribution within a crack colony, and the lack of non-destructive technology capable of reliably measuring the crack depths. Laser ultrasonic...

Since the 80’s, Bulk Acoustic Wave (BAW) resonators technology has been seeing a rapid expansion, due to its potentials in terms of performances and integration for Radio-Frequency (RF) filtering. The control of the frequency is a challenging question for the mass production of such devices, and passes through an accurate control of mechanical properties of the whole stack. The picosecond ultra...

Composite materials are of increasing interest to the aerospace industry as a result of their weight versus performance characteristics. One of the disadvantages of composites is the high cost of fabrication and post inspection with conventional ultrasonic scanning systems. The high cost of inspection is driven by the need for scanning systems which can follow large curve surfaces. Additionally...

We report herein the development and preliminary mechanical characterization of fully-dense multi-wall carbon nanotube (MWCNT)-reinforced ceramics and glasses based on a completely new methodology termed High Shear Compaction (HSC). The tubes are introduced and bound to the matrix grains by aid of polymeric binders to form flexible green bodies which are sintered and densified by spark plasma s...

The dangers to the handler of syringes used for routine injections were found to be negligible, but known infected syringes and those contaminated with antibiotics should be autoclaved before handling as a high proportion of these carry pathogenic organisms. Mechanical methods of cleaning syringes and instruments are assessed. The use of an artificial soil for testing purposes is described. Usi...