Closing out 2016 – Aurelian Tanase presented his seminar

Last but not least for 2016, Aurelian Tanase presented his PhD thesis seminar, with PhD work completed under the supervision of Drs. Tavoularis and Groeneveld. The title of the talk was “flow and heat transfer in tubes with objects”.It was an interesting talk, followed by some delicious shawarma to round out our fall semester. Congrats Aurelian and here’s to 2017!

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Ruben Fernandez presented his PhD thesis seminar

Ruben Fernandez presented his PhD thesis seminar, giving a talk titled “Deposition of Thick Copper Cold Spray Coatings on Steel for Used Nuclear Fuel Repository using Nitrogen and Pulsed Waterjet Surface Preparation.”  

It was a really interesting talk, lots of questions afterwards! Unfortunately, supervisor Dr. Bertrand Jodoin was unable to attend but I am sure he would have been very proud.  The labmates stood in for the supervisor in the obligatory photo. Congrats Ruben on almost completing your PhD!

Bijan Borzou presented his PhD thesis seminar

Huge crowd came out on Friday to hear Bijan Borzou present his PhD thesis seminar on “The Influence of Cellular Structure on the Dynamics of Detonations with Constant Mass Divergence”.  Well done, Bijan! Unfortunately, supervisor Dr. Matei Radulescu was away at a conference, however his research group came out in support of their colleague. Meanwhile, I forgot my real camera (sorry) so had to take iPhone photos…


Daniel Cormier presented on Tuesday

Daniel Cormier presented his MASc thesis work last Tuesday on “Repair of Conductive Layer on Carbon Fibre Reinforced Polymer Composite with Cold Gas Dynamic Spray”. Supervisor Dr. Bert Jodoin was in attendance for the talk.

Dr. Bert Jodoin and Daniel Cormier

Dr. Bert Jodoin and Daniel Cormier

Abstract

Carbon fibre reinforced composites are known for their high specific strength-to-weight ratio and are of great interest to the aerospace industry. Incorporating these materials into the fuselage, like in Boeing’s 787 “Dreamliner”, offers considerable weight reduction which increases flying efficiency, and reduces the cost of flying. In flight, aircrafts are often subject to lightning strikes which in the case of composites can result in localized melting given the high resistive nature of the material. Aerospace carbon fibre composites often incorporate a metallic mesh or foil within the composite layers to dissipate the electrical charge through the large aircraft. The damage to the aircraft is minimized but not always eliminated. This research aims to elaborate a practical technique to deposit thin layers of conductive material on the surface of aerospace grade composites. Using Cold Gas Dynamic Spray (CGDS), such coatings could be used to repair damaged components. An experimental research approach used to develop metallic coated composites. Using the CGDS equipment of Centerline (SST-P), specific parameters (such as gas temperature and stagnation pressure) were determined for each type of metallic coating (tin-based & copper-based). The use of bond coats was explored in order to attain the desired coatings. Once optimized, these coatings were evaluated with respect to their corrosive, adhesive, and electrical properties following industry standards.