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Thesis
Home   /   Thesis   /   Synthesis and post-synthesis treatments of ultra-light weight mesoporous metals obtained by plasma electrolysis for laser targets fabrication

Synthesis and post-synthesis treatments of ultra-light weight mesoporous metals obtained by plasma electrolysis for laser targets fabrication

Engineering sciences Materials and applications

Abstract

For fundamental physics experiments conducted on the Megajoule Laser, the CEA must develop mesoporous metal materials with very low apparent density. Based on the discovery by CEA researchers of a new reactive mechanism between plasma and liquid, CEA has developed a unique electrolytic plasma synthesis process in the world. This technology converts thousands of flashes into as many metallic nano-filaments in seconds to form metals in the form of a nano-structured, ultra-light sponge.
The understanding of the physico-chemical mechanisms that govern the synthesis of these foams is crucial to optimize the properties of synthetic raw materials. A first part of the thesis will consist in continuing the studies already carried out and completing the innovative phenomenological model in the field of electrolytic plasmas.
In a second step, the influence of a heat treatment on the crystallization of these materials and their mechanical resistance will be conducted in order to optimize their subsequent shaping by laser or ultra-precision mechanical machining.

Laboratory

DTRI
DTRI
DTRI
Université de Lorraine
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