Nanostructured lithium orthosilicate ceramic spheres used for tritium propagation and preparation method thereof

Abstract

The invention discloses nanostructured lithium orthosilicate ceramic spheres used for tritium propagation and a preparation method thereof. The nanostructured lithium orthosilicate ceramic spheres are made by preparing precursor powder with uniform particle size through a solvothermal method, obtaining a lithium ceramic sphere blank with a uniform microstructure through wet moulding, and carrying out two-step sintering. The prepared lithium orthosilicate ceramics is high in purity, good in sphericility, small in hole size and uniform in hole dispersion, has a crystal grain size in nanometer order and allows the radiation resistance, mechanical properties and tritium release properties of tritium propagation ceramics to be improved at the same time.

Description

technical field

[0001] The invention belongs to the field of tritium breeding materials, and in particular relates to a nanostructure lithium orthosilicate ceramic ball for tritium breeding and a preparation method thereof. Background technique

[0002] As one of the core components of nuclear fusion, the Tritium-producing Test Blanklet Module (TBM) is the key to realizing the "self-sustainability" of controllable nuclear fusion fuel. It can not only realize the proliferation of tritium, but also play a role in energy conversion. As the most important functional material in TBM modules, lithium ceramics have attracted extensive attention from research at home and abroad due to their good stability, high safety and no magnetohydrodynamic effects. The main research object; while lithium orthosilicate (Li 4 SiO 4 ) material has high lithium density, good chemical stability, mechanical stability and radiation stability, can release tritium at a lower temperature, and can reduc...

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