dc.creator | Vizcaino, Pablo | |
dc.creator | Lopez Vergara, I. A. | |
dc.creator | Banchik, Abraham David | |
dc.creator | Abriata, Jose Pablo | |
dc.date.accessioned | 2018-04-18T18:27:56Z | |
dc.date.accessioned | 2018-11-06T12:40:47Z | |
dc.date.available | 2018-04-18T18:27:56Z | |
dc.date.available | 2018-11-06T12:40:47Z | |
dc.date.created | 2018-04-18T18:27:56Z | |
dc.date.issued | 2015-12 | |
dc.identifier | Vizcaino, Pablo; Lopez Vergara, I. A.; Banchik, Abraham David; Abriata, Jose Pablo; Terminal solid solubility determinations in the H–Ti system; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 40; 47; 12-2015; 16928-16937 | |
dc.identifier | 0360-3199 | |
dc.identifier | http://hdl.handle.net/11336/42509 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1869010 | |
dc.description.abstract | The terminal solid solubility of hydrogen in titanium was measured by differential scanning calorimetry in the concentration range of 0.3–4.1 at.% which practically corresponds to the whole solubility range of hydrogen in α-Ti. The solvus enthalpy obtained in this range from the overall data set was 22.8 ± 0.5 kJ/molH. However, a more careful analysis of the experimental results shows that the solubility curve has two different behaviors as a function of concentration. In the high concentration range 1.4–4.1 at.% a solvus enthalpy of 29.0 ± 1.5 kJ/molH was obtained representing the α/α + δ equilibrium boundary. In the low concentration range, 0.3 at.% to 1.4 at.%, the slope was noticeably lower with 24.2 ± 1.5 kJ/molH for the solvus enthalpy. This last value should correspond to the [α]/[α + γ] equilibrium curve. Although it is possible this value might be influenced by the presence of tiny amounts of the now metastable δ phase–as its presence is revealed by X-ray diffraction analysis – anyway it is consistent with a α + δ ↔ γ peritectoid reaction temperature of 168 °C obtained from the literature. The eutectoid α + δ ↔ β decomposition temperature was determined using samples of high hydrogen contents, ranging from 9 to 11.0 at.%. This temperature was determined to be 319.9 ± 1 °C from the analysis of the DSC diagrams. The solubility limit [α]/[α + δ] at this eutectoid reaction was estimated to be 5.44 ± 0.27 at.%. The present results are believe to provide a closer approximation to the solubility values of H in α-Ti as presently reported in the literature. | |
dc.language | eng | |
dc.publisher | Pergamon-Elsevier Science Ltd | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319915015438 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijhydene.2015.06.058 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | Hydrogen | |
dc.subject | Titanium | |
dc.subject | Solubulity | |
dc.subject | Differential scanning calorimetry | |
dc.subject | Hydride phases | |
dc.title | Terminal solid solubility determinations in the H–Ti system | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |