Madabadi, Nezhla (2024) Development of Polymeric Abradable Coatings for Aero Engine Applications. Masters thesis, Concordia University.
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Abstract
In the field of aerospace engineering, the enhancement of engine performance and reliability under extreme conditions is paramount. This study is dedicated to the development of polymeric abradable coatings for fan core and Low-Pressure Compressor stage. These coatings are specifically engineered to wear away in a controlled manner, thus reducing friction and improving the sealing capabilities of engines, a critical factor for optimizing efficiency.
The research evaluates two primary material types: thermosets and thermoplastics, comparing them against two commercially available materials which are epoxy based and named as ref1 and ref2. The assessment involves a series of tests, including erosion resistance, tribology pin-on-flat testing, and rub rig testing, to gauge the performance of these materials under operational stress.
Furthermore, the study explores the incorporation of various fillers—Graphite, Silicone Powder, PTFE, Carbon Nanotubes, Milled Carbon Fiber, Aramid Fiber, and Hollow Glass Microspheres—into selected thermoset. These fillers are evaluated at two distinct concentrations to ascertain their influence on erosion resistance.
Through this research, effective filler concentrations were identified, optimizing the balance between wear resistance and erosion resistance. Notably, a formulation comprising Epoxy with 10% PTFE, and 0.1% Carbon Nanotubes introduced as a potential abradable coating, exceeding the commercial benchmarks in terms of both erosion resistance and friction reduction.
This investigation underscores the critical role of precise material selection in the development of advanced abradable coatings that enhance the efficiency and longevity of aircraft turbine components, offering implications for future aerospace applications.
| Divisions: | Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical, Industrial and Aerospace Engineering |
|---|---|
| Item Type: | Thesis (Masters) |
| Authors: | Madabadi, Nezhla |
| Institution: | Concordia University |
| Degree Name: | M.A. Sc. |
| Program: | Mechanical Engineering |
| Date: | October 2024 |
| Thesis Supervisor(s): | Shadmehri, Farjad |
| Keywords: | Abradable Coatings, Polymeric composites, Erosion Resistance, Fillers, erosion, Tribology Pin-on-Flat Test, Aero Engine. |
| ID Code: | 995037 |
| Deposited By: | Nezhla Madabadi |
| Deposited On: | 17 Jun 2025 17:19 |
| Last Modified: | 17 Jun 2025 17:19 |
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