Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019).

Tekna inductively-coupled plasma technology can produce nanomaterials of various natures (1D to 3D) andx000D
compositions which can be used as reinforcing agent in structural parts (like metal matrix composites, MMC),x000D
or as building blocks of components. However, nanomaterials like nanopowders and nanotubes tend to formx000D
agglomerates which prevent their homogeneous dispersion in a solid matrix, thus seriously limiting theirx000D
impact on the performances of composite materials. The main challenge consists in developing a preparationx000D
method suitable for these nanomaterials and adapted to the shaping process that will produce final parts.x000D
Aggregated (bonded) nanopowders of large apparent particle sizes can be used for ensuring the good dispersionx000D
of a nanomaterials in a matrix, while being easier and safer to handle. In this context, Tekna would like tox000D
develop an approach for aggregating nanopowders and would like to explore two material systems - thex000D
gadolinium zirconate (GZO) nanopowder and the boron nitride nanotubes mixed with metallic sphericalx000D
particles (MSP-BNNT composite). The objective of this project would be developing methods of preparingx000D
aggregates of the two material systems respectively. An extrusion-flaking-grinding process for the GZOx000D
nanopowder and a hot-pressing-grinding process for the MSP-BNNT composite are proposed by UWO for thisx000D
research. These two innovative techniques are inspired from current powder coating manufacturing, whichx000D
features low-cost, high energy-efficiency and flexibility in formulation variations. They are expected to resolvex000D
the problems that Tekna currently has. The results of this project will be tested and validated by Tekna andx000D
their Canadian customer. Successful outcomes generated from this project will benefit both Tekna and theirx000D
customer and will create new business opportunities with industries requiring high performances materials likex000D
aerospace. With the knowledge and expertise Dr. Zhang has in this area, also with the close collaborationx000D
between UWO and Tekna, this research is expected to elevate Tekna's technology in this area and place Teknax000D
in the leading position in manufacturing such advanced materials.