(M/F) Densification of fibrous preforms for silicon nitride and oxynitride ceramic matrix composites by self-propagating high-temperature synthesis (SHS)
New
- FTC PhD student / Offer for thesis
- 36 month
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire des Composites ThermoStructuraux
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
33600 PESSAC
Contract Duration
36 month
Date of Hire
01/10/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 22 July 2026 23:59
Job Description
Thesis Subject
The subject of the proposed doctoral work is the study of the process for preparing a silicon oxynitride (Si2N2O) matrix for composites with woven fiber reinforcements, alumina or silicon carbide. This type of ceramic matrix composites reveals a particular interest both for aeronautical propulsion and hypersonic vehicles. The production of this matrix from a mixture of silicon powder and silica in nitrogen environment under high pressure has certain advantages compared to processes such as sintering or densification by gaseous process. However, the relationship between processing parameters and structural properties of the matrix are not yet clearly established. This doctoral work aims, through an experimental approach supported by (already available) simulations, to provide a better understanding for the design, scale-up and industrial optimization of this process.
Your Work Environment
LCTS is a joint lab of CNRS, Bordeaux University, CEA and Safran, located on the Bordeaux Campus. It has 38 years of experience in basic science research on refractory composites. These high-performance materials are used in aviation, space, energy & industrial applications. LCTS is single research team working in project-oriented mode, in strong relation with its non-academic stakeholders. Currently it includes 34 permanent staff members, plus some 15 PhD candidates and 6 post-doc researchers.
Constraints and risks
Work in restricted area, subject to clearance from the Security and Defence Officer.
Safety aspects linked to the process : high pressures, high temperatures, gases.
Compensation and benefits
Compensation
2300 € gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR5801-GERVIG1-054 |
|---|---|
| CN Section(s) / Research Area | Materials, nanomaterials and processes chemistry |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
Create your alert
Don't miss any opportunity to find the job that's right for you. Register for free and receive new vacancies directly in your mailbox.