| 학회 | 한국재료학회 |
| 학술대회 | 2005년 가을 (11/10 ~ 11/11, 한양대학교) |
| 권호 | 11권 2호 |
| 발표분야 | 에너지환경재료 |
| 제목 | Ti-xNb-Cr합금의 수소 저장 특성 |
| 초록 | Hydrogen is considered to be one of the most promising fuel for the future. It is non-polluting with the major by-product of combustion being water vapor and it has the highest energy density per unit weight of any chemical element. It is fully recyclable and almost unlimited supply potential. On the other hand, Ti-Cr systems are known that it consist of BCC solid solution, C36, C14, C15 Laves phase at high temperature. Among others, BCC solid solution phase was reported that have a high hydrogen storage capacity. However, activation, wide range of hysteresis at hydrogenation/dehydrogenation and degradation of hydrogen capacity due to hydriding/dehydriding cycles have to be improved for its application. In this study, for improving such a problem, we added on Nb. For getting a target materials, Ti-1Nb-10Cr, Ti-3Nb-10Cr and Ti-5Nb-10Cr specimens were prepared by planetary ball mill. Milling process carried out under an nitrogen atmosphere. Specimens synthesized were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and thermo gravimetric analysis/differential scanning calorimetry(TG/DSC). In order to examine hydrogen absorption kinetics, Sievert's type automatic pressure-composition- isotherm (PCI) was performed at 323, 373 and 423K and 4MPa. ■ Acknowledgement This research was supported by the Regional Research Center (RRC) Program which was conducted by the Ministry of Commerce, Industry and Energy of the Korean Government. |
| 저자 | 신경, 석송, 조경원, 홍태환 |
| 소속 | 충주대 |
| 키워드 | Ti-Cr alloy; Laves phase; Planetary ball mill |
