PhD opportunities

Cold Spray as a cylinder bore coating process for automotive application

Thesis proposal

Area of expertiseMaterials science and engineering
Doctoral SchoolSMI - Sciences des Mtiers de l'Ingnieur
SupervisorM. Michel JEANDIN
Research unitCentre of materials
ContactJEANDIN Michel
KeywordsCold spray, powder, engine, laser shock
AbstractCold gas dynamic spray, namely cold spray, is one of the most innovative thermal spray processes. The number of industrial applications for cold spray has been growing dramatically over the past 10 years. However, some parts remain rather far from application for the process due to specific characteristics. Among them, one may mention the automotive cylinder bore for which an inner coating can be required as a substitute for a liner. A practical objective of the thesis work is to develop cold spray successfully for that from the use of an ID (inner diameter) spraying gun, which has just come out. The scientific objective is to go into basic changes in the coating build-up process due to processing in a confined medium (i.e. in the cylinder bore). The study will show the various following stages:
Study of Fe-based powder composition and characteristics for cold spray
In-flight particle velocity measurements
Numerical simulation of particle impact and modeling of coating build-up
Microstructural study and testing for the assessment of coating wear resistance and bond strength (with properties of conventional arc-sprayed material as basis for comparison).
ProfileEngineer and / or Master of Science - Good level of general and scientific culture.
Good level of knowledge of French (B2 level in french is required) and English. (B2 level in english is required)
Good analytical, synthesis, innovation and communication skills.
Qualities of adaptability and creativity.
Teaching skills.
Motivation for research activity. Coherent professional project.

Applicants should supply the following :

- a detailed resume
- a covering letter explaining the applicants motivation for the position
- detailed exam results
- two references : the name and contact details of at least two people who could be contacted to provide an appreciation of the candidate

to be sent to
FundingConvention CIFRE