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The Team


Prof C

Prof. Richard Chromik

Post-Doctoral Fellows


Roghayeh was born and raised in East-Azerbaijan province, Iran. She got her bachelor’s degree in Materials Science and Engineering, majoring in Ceramics, from Iran University of Science and Technology (IUST). She completed her master's studies at Tarbiat Modares University, where she worked on modelling microstructure evolution and intermetallics formation of exothermic reactions using a thermodynamic phase-field approach. 

Then, she started her PhD studies at IUST. In 2016, she visited the Cold Spray Laboratory of the University of Ottawa as a visiting PhD student and completed part of her PhD studies there. Her PhD research involved understanding cold spray deposition characteristics of metal matrix composite coatings with a focus on the physics of dissimilar materials bonding (FEM and experimental approach), dynamic microstructure evolution, and experimental and numerical analyses of intermetallics formation upon post spray heat treatment of composite coatings using a phase-field simulation approach. She defended her PhD dissertation in November 2018. 

She started her postdoctoral fellowship in 2019 at the Cold Spray Laboratory of the University of Ottawa. Her research focused on the development and characterization of high entropy alloy coatings as well as solid lubricant composite coatings using cold spray, laser-assisted cold spray, and pulsed gas dynamic cold spray methods. Additionally, she worked on femtosecond laser micromachining and characterization of SiN resonators. Roghayeh joined Prof. Chromik’s group in May 2022, as a postdoctoral researcher. She works on the design, development and tribological analysis of high entropy alloy films and coatings. In her free time, Roghayeh enjoys hiking, cycling, and reading.


Dr. Roghayeh Nikbakht

Post-Doctoral Fellow


(2022 - present), High entropy coatings and their tribological properties

Graduate Students Currently Supervised

Alejandra Encalada

Alejandra was born in Mexico City, she obtained her bachelor’s degree in Metallurgy and Materials Engineering in the National Polytechnic Institute (IPN), Mexico. In 2010, she joined a global manufacturer and supplier of steel pipes based in Veracruz, Mexico as part of the Global trainee program and then as a researcher in the Metallurgy and Materials Department. After 4 years, she decided to continue her master’s program in Metallurgic Engineering. Her experience is related to chemical, microstructural and mechanical characterization of HSLA steels for extreme environments. In 2019 she joined Professor Chromik's research group as a PhD student, her research involves understanding the wear mechanisms of thermally sprayed coatings for high-temperature applications. She enjoys watching series, playing backgammon and minesweeper.


Alejandra Islas Encalada



(2019 - present), Tribology of MMC coatings made by thermal spray.

Srikar Billa

Srikar Billa



(2021 - present), Mechanical properties of cold sprayed powders and coatings

Srikar Billa is born and raised in the southern part India. He obtained his Bachelors degree in Mechanical Engineering in 2015 from GITAM University. He graduated with a Masters degree in Metallurgical Engineering in an year 2019 from Jawaharlal Nehru Technological University. For his Masters dissertation, he worked on Exploring unsupervised machine learning models for deconvoluting high-speed nanoindentaton property data. He worked in Indian Institute of Technology Madras as a Project Associate for an year and gained an expertise in multi-scale modeling of materials. His research interests are optimization of cold spray process, Data driven material development, Microstructure image analysis using deep learning approaches and multi-scale modeling of materials. He likes trekking, badminton and solo traveling. 

Tongyue Liang

Tongyue comes from Wuxi, a beautiful city in the south of China. She received her B.Sc. (2018) in Chemistry and a M.Sc. (2021) in Materials Engineering, During her Master's, she studied the mechanical properties of Ni-cBN superabrasive coatings. She is pursuing a PhD on duplex coatings and high entropy alloys to address the problem of regolith wear in lunar environments. . In her free time, she likes watching TV series and playing with her dog.


Tongyue Liang 梁同钥



(2021 - present), Duplex coatings and  high entropy alloys for regolith wear resistant applications

Aosong Li

Aosong Li



(2021 - present), Solid lubricant composite coatings prepared by pulsed cold spray deposition.

Aosong Li comes from Xingtai, a city in north of China. He obtained his Bachelor’s degree in Logistics Engineering from Wuhan University of Technology and Master’s degree in Mechanical Engineering from South China University of Technology. During his Master’s, he focused on the research of surface texture, two-dimensional (2D) lubricating materials and biomimetic coatings for improving tribological properties of titanium alloys. In September 2021, Aosong joined Professor Chromik’s group as a Ph.D. student. His research is focusing on the Duplex Coatings Based on Cold Spray and PVD. In leisure time, he enjoys playing basketball, travelling, and reading. 

Lin Wu

Lin Wu comes from Dalian, a coastal city in northeast of China. She obtained her bachelor’s degree in Materials Science and Engineering in the Xi’an Shiyou University in China. During her undergraduate, she majored in Size Effect of Cu/CuZr Nano-amorphous Composite Materials by molecular dynamics simulation as well as the optimization of microstructure of pipeline steel by heat treatment. She then working on the development and standard exploration on sacrificial high-performance separation membrane in Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences. She is a big fan of comics. In leisure time, she enjoys swimming, skiing and playing games.


Lin Wu



(2022 - present), High entropy thin films

Maya picture_2.jpg

Maya Harfouche


(2022 - present), Cold spray of high entropy alloy coatings.

Maya was born in Seattle, USA and lived on the island of Martinique before attending University in Canada. She completed her Bachelor’s degree in Materials Engineering at McGill University, minoring in aerospace engineering. Maya joined Professor Chromik’s group as a Co-op intern in 2021, where she worked on scratch testing of thick thermal spray coatings to analyze their adhesive and cohesive bond strengths. She then continued working in the group as a Master’s student in 2022. Her research focuses on cold spray deposition of high entropy alloy coatings, and the investigation of their tribological properties. In her free time, Maya enjoys running, sailing, baking, and reading.

Jack Mogus

Jack was born in Mississauga, Ontario. He completed his Bachelor's degree in Nanoscience at the University of Guelph, minoring in Physics. His U/G research involved the detection of avian flu viruses using an optoelectronic biosensor made of a graphene quantum dot and gold nano bundle hybrid, which was he published as a second author with other researchers. Jack also worked with an IP development and commercialization company specializing in graphene-based nanotechnology. He also investigated the ice shedding performance, mechanical properties, and durability of icephobic materials. In September 2023, Jack joined Professor Chromik’s group as a Master’s student. His research involves cold spray deposition for the repair of damaged metallic structures. In his free time, Jack enjoys hiking, playing soccer, biking, reading, and trying new foods.


Jack Mogus


(2023 - present), Cold spray repair


Payank Patel


Concordia University


(2020 - present), High entropy alloy coatings.

Mr. Payank Patel was born and raised in western India. He received his bachelor's degree in Metallurgical Engineering from Indus University in India and his master's degree in Materials Engineering from Maharaj Sayajirao University of Baroda in India. Previously, he was awarded with the “Anupama Basa Memorial Gold Medal” for the best academic performance. During his master's degree, he conducted research at the Indian Institute of Plasma Research in Gandhinagar (part of HomiBhabha National Institute, India). During his thesis dissertation work, he meticulously generated new data on the oxidation resistance and tensile behaviour of plasma processed aluminized Ti6Al4V alloys which is an aerospace relevant alloy. As a side project, he was involved in the investigation of mechanical properties of plasma processed IN-RAFM steel (in collaboration with Indian Institute of Technology, Gandhinagar). To pursue his doctoral studies, Payank joined Prof. Chromik’s research group in January 2020. His current research focuses on determining the wear mechanism of thermally sprayed coatings used in high-temperature aerospace applications. He enjoys sports (particularly badminton), watching movies, and learning about various cultures.

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