Mechanical properties of yttrium hydride

Thermal properties of yttrium hydride

“…From the experimental and literature [3][4][5] data, we can estimate various contributions to the heat capacity of yttrium hydride: the contributions are the metal vibrational term for the acoustic mode, the dilatational term, the electronic term and the hydrogen vibrational term for the optical mode. The details of the calculation were described in our previous paper [6].…”

“…We have succeeded in fabricating flaw-free bulk samples of yttrium hydrides. The preparation process was reported in our previous paper [3]. The heat capacity was measured in the temperature range from 323 to 773 K by a differential scanning calorimeter (Triple-cell DSC, ULVAC-RIKO Inc.).…”

Effect of electronegativity on the mechanical properties of metal hydrides with a fluorite structure

“…The authors succeeded in producing bulk hydrides of titanium, yttrium, and zirconium without any defects directly from the bulk pure metals by regulating their hydrogen absorption rate. The apparatus and hydrogenation process are described in detail elsewhere [12][13][14][15].…”

“…As mentioned above, the mechanical properties of single-phase titanium, yttrium, and zirconium hydrides were scarcely investigated. In our previous study, the techniques for producing bulk single-phase titanium, yttrium, and zirconium hydrides with wide-ranging hydrogen contents were established [12][13][14]. In the present paper, the mechanical properties of titanium, yttrium, and zirconium hydrides were examined.…”

“…da/dC H (nm/(H/M)) = 5.19 × 10 −2 × E n − 6.42 × 10 −2 (13) In this equation, E n denotes the electronegativity of the metal. It is noteworthy that other fluorite-structured lanthanide hydrides [28] also obey this equation.…”