<< Joint collaboration between Concordia University and the National Research Council (NRC), Boucherville>>• Understanding the dynamic behavior of the CMAS for next-generation gas turbine engines• Engineering the next generation of thermal barrier coatings (TBCs)• Effect of spray parameters of atmospheric plasma spraying (APS) on coatings<< Joint collaboration between Concordia University and Pratt & Whitney, Canada>>• REACH Compliant Lead-Free Journal Bearing for Aerospace Applications• Finding suitable materials for improving the tribological performance of the engine.

> Developed and optimized copper, tantalum, mixed (i.e., copper and tantalum oxides), copper tantalate, and nickel oxide coatings using SPS (i.e., Radial-3MB, Axial-Mettech) process;> Produced cobalt oxide and Co-Ni-O coatings using a high-velocity oxy-fuel (HVOF) spray process> Characterized (i.e., SEM/EDS, ECCI, FIB, XRD, XPS, Microhardness, etc.) thermally sprayed oxide coatings> Performed sliding wear tests of thermally sprayed oxide coatings at different temperatures> Proposed dominating wear mechanisms of thermally sprayed oxide coatings at different temperatures based on ex-situ analysis> Wrote manuscripts and published research articles> Supervised intern and graduate students

The primary purpose of the exam invigilator is to ensure the integrity of the examination exercise as specified in Concordia University’s Academic Code of Conduct.

• Teaching assistant and Marker in three different subjects: Material Science; Properties & Failure of Materials; and Introduction to Tribology.• Prepared the material, answered questions, graded submissions associated with the course, held office hours for individual or group consultation, assisted in grading exams

> Developed submicron copper tantalate particles from copper and tantalum oxides using solid-state synthesis techniques > Identified the phases of oxide powders and thermally sprayed oxide coatings using X-ray diffraction (Bruker)> Investigated the microhardness of thermally sprayed various oxide coatings using Anton Paar Micro Combi Tester (MCT3)- STeP4 Surface Testing Platform with heating/cooling (Max. ~450°C)> Performed reciprocating type sliding wear testing of thermally sprayed various oxide coatings using Anton Paar TRB³ tribometer at room and elevated temperatures (Max. ~450°C) > Measured wear track depth using Zygo - 3D optical profilometer> Identified the oxide phases on the wear tracks after wear testing by using Renishaw Raman Spectroscopy> Grain orientation and sub-surface wear mechanisms of thermally sprayed oxide coatings were identified using ECCI and FIB techniques

The TRIBOS+ Joint Master Programme with four different universities and attended three out of four.> First-semester coursework and laboratory-based research was at the University of Leeds, UK> Second-semester coursework and laboratory-based research was at the University of Ljubljana, Slovenia> Third and Fourth-semester research work was at Lulea University of Technology, SwedenThis joint program taught------ High-level contemporary knowledge, is required for the next generation of engineers to tackle highly interdisciplinary tribology-related problems through an interdisciplinary and complementary joint master program about tribological surfaces, interfaces, lubricants, lubrication, as well as wear and friction mechanisms at nano and macro scale.

• Prepared the material, answered questions, and graded submissions associated with the course. • Held office hours for individual or group consultation.• Prepared results• Conduct research, teaching, assessing students’ performance, and administrative work.

<<(A project funded by world bank & UGC, BD) at Rajshahi University of Engineering & Technology (RUET), Bangladesh>>• Improved the research capabilities by procuring various laboratory instruments • Collaborated and coordinated with faculty, staff, industry personnel, and fellow graduate students across departments.