Novel Materials Synthesis by Mechanical Alloying/Milling (Volume II)

Dear Colleagues,

It is the second Special Issue of this topic. In this Special Issue, the main objectives are to present new scientific and technological issues linked to: a) synthesis and processing in solid-state science and technology; high-energy milling, severe plastic deformation of materials (SPD), and reaction milling, b) new materials: composites, high entropy alloys, and materials for energy, c) structural and functional characterization: microstructure, mechanical properties, thermal stability, and magnetic response, d) new equipment and procedures: milling equipment based on improved milling efficiency, and e) simulation and models of the milling process.

Mechanical alloying/milling (MA/MM) is a versatile process for the production of powders. The size and size distribution of the particles change as a result of continuous fracture and welding. It has been applied to the production of advanced materials such as oxide dispersion-strengthened, amorphous, nanocrystalline, extended solid solutions, metastable phases, new ceramic, metallic, composite materials, pharmaceutical products, and mechanochemical reaction materials. The samples/materials obtained after MA process depends on several parameters as: geometric and dynamic parameters of mill design, the character of motion of milling bodies, the physical and mechanical characteristics of milling bodies, the characteristics of processed substances, a mass ratio of milling bodies to powder, temperature of the vial, milling atmosphere, selection of process control agents, the filling factor of the vial. Moreover, the experimental milling devices to perform the alloying process are very different; attritor, shaker mill, horizontal ball mill, planetary mill, and ball mill controlled by magnetic force. Likewise, the materials are produced directly by mechanical alloying/milling or by combining this technique with other synthesis techniques (spark plasma sintering, HVOF, additive manufacturing, consolidation, sintering) in order to produce bulk alloys, composites, surface layers or foams.

Prof. Dr. Joan-Josep Suñol
Prof. Dr. Lluïsa Escoda
Guest Editors

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