General information
Offer title : (M/F) Post-doc - Study of sintering and characterization of the magnetic properties of NdFeB permanent magnets (H/F)
Reference : UMR6508-SOIMIL0-016
Number of position : 1
Workplace : CAEN
Date of publication : 21 March 2025
Type of Contract : Researcher in FTC
Contract Period : 4 months
Expected date of employment : 16 June 2025
Proportion of work : Full Time
Remuneration : Between 2991.58 et 4166.70€ gross per month depending on experience
Desired level of education : Doctorate
Experience required : 1 to 4 years
Section(s) CN : 15 - Materials, nanomaterials and processes chemistry
Missions
As part of a collaboration between two partners, the CRISMAT (Caen) and the GPM (Rouen), which concerns the transformation of NdFeB magnets into powders and the sintering of these powders to manufacture new magnets, the mission will be to contribute to the recovery of magnets from computer hard disks, to study and contribute to the optimisation of the synthesis of powders by hydrothermal synthesis and to optimise the consolidation process by Spark Plasma Sintering.
Activities
Rare Earth magnets are high-performance components in modern electric motors and generators. With the development of electric and hybrid automobiles and wind turbines, the use of these magnets is increasing significantly. In 2010/11, the manufacture of wind turbines consumed 11540 tonnes of magnets. In 2013, 37,000 tonnes of rare-earth magnets were used in the manufacture of electric and hybrid cars. Demand for rare-earth magnets continues to rise dramatically: neodymium demand is expected to increase by 700% over the next 25 years. Current sources of supply may be insufficient to keep pace with this trend.
The most important properties of Rare Earth magnets are:
- A strong coercive field
- The highest possible saturation magnetization
- Strong remanent magnetization.
The main objective of the proposed work is to contribute to the study of unconventional sintering by Spark Plasma Sintering of recycled NdFeB magnet powders. Structural, microstructural and magnetic properties will also be studied.
Skills
- Experience in materials science, sintering and the study of micro-structure/properties relationships.
- Ability to express oneself orally and in writing in English.
- Demonstrate initiative,
- Be a self-starter
- Ability to work as part of a team
- Ability to adapt to a collaborative project.
Work Context
The CRISMAT laboratory, with around 100 members, is a joint CNRS, ENSICAEN and Université de Caen Normandie unit. The contract will be carried out within the Materials and Processes team, under the responsibility of Pr Jacques Noudem and Pr Pierre Bernstein.
The position is located in a sector under the protection of scientific and technical potential (PPST), and therefore requires, in accordance with the regulations, that your arrival is authorized by the competent authority of the MESR.
Constraints and risks
This job offer is subject to funding being obtained and applications being reviewed by the Human Resources department.