Enhancing Hydrogen Storage Properties of Metal Hybrides: Enhancement by Mechanical Deformations

1 Introduction 2 Nanostructured materials 2.1 General considerations 2.2 Measurement of crystallite size 3 Ball milling 3.1 Solid Solubility extension 3.2 Synthesis of intermetallic alloys 3.3 Metastable phases 3.4 Effect of milling on hydrogenation properties of metal hydrides 4 High Pressure Torsion 4.1 Description of the technique 4.2 Strain 4.3 HPT effects on metal hydrides 5 Equal Channel Angular Pressing 5.1 Description of the technique 5.2 Strain 5.3 Effect of billet rotation 5.4 ECAP effects on metal hydrides 6 Cold Rolling 6.1 Description of the technique 6.2 Strain 6.3 Accumulative roll bonding 6.4 CR effects on metal hydrides 6.4.1 Membranes for hydrogen purification 6.4.2 Alloys for hydrogen storage 7 Outlook