Kinetics of hydrogen absorption in Zr-based alloys
Abstract
The kinetics of hydrogen absorption in Zr-based alloys Zr–2.5Nb, Zr–10Nb, Zr–2.5Nb–3Ta and Zr–10Nb–12Ta have been investigated in the temperature range 673–973 K at 1 bar hydrogen pressure. The improvement in hydrogen kinetics and a slight decrease of maximal amount of hydrogen absorbed were observed upon cycling. The rate determining steps are as follows: geometrical contraction for all samples except Zr–10Nb–12Ta; diffusion in the beginning for Zr–10Nb at 973 K Zr–2.5Nb–3Ta at 673 K and 973 K; first order reaction Zr–10Nb–12Ta at all temperatures. The amount of additives, Nb and Ta, is found to have major influence on the mechanism of the absorption process.
Keywords:
hydrogen absorbing materials / zirconium alloys / kinetics / hydriding isothermSource:
Journal of Alloys and Compounds, 2013, 559, 162-166Publisher:
- Elsevier
Funding / projects:
DOI: 10.1016/j.jallcom.2013.01.104
ISSN: 0925-8388
WoS: 000316679800029
Scopus: 2-s2.0-84874094886
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Cekić, Božidar AU - Ćirić, Katarina AU - Iordoc, Mihail AU - Marković, Smilja AU - Mitrić, Miodrag PY - 2013 UR - https://dais.sanu.ac.rs/123456789/342 AB - The kinetics of hydrogen absorption in Zr-based alloys Zr–2.5Nb, Zr–10Nb, Zr–2.5Nb–3Ta and Zr–10Nb–12Ta have been investigated in the temperature range 673–973 K at 1 bar hydrogen pressure. The improvement in hydrogen kinetics and a slight decrease of maximal amount of hydrogen absorbed were observed upon cycling. The rate determining steps are as follows: geometrical contraction for all samples except Zr–10Nb–12Ta; diffusion in the beginning for Zr–10Nb at 973 K Zr–2.5Nb–3Ta at 673 K and 973 K; first order reaction Zr–10Nb–12Ta at all temperatures. The amount of additives, Nb and Ta, is found to have major influence on the mechanism of the absorption process. PB - Elsevier T2 - Journal of Alloys and Compounds T1 - Kinetics of hydrogen absorption in Zr-based alloys SP - 162 EP - 166 VL - 559 DO - 10.1016/j.jallcom.2013.01.104 UR - https://hdl.handle.net/21.15107/rcub_dais_342 ER -
@article{ author = "Cekić, Božidar and Ćirić, Katarina and Iordoc, Mihail and Marković, Smilja and Mitrić, Miodrag", year = "2013", abstract = "The kinetics of hydrogen absorption in Zr-based alloys Zr–2.5Nb, Zr–10Nb, Zr–2.5Nb–3Ta and Zr–10Nb–12Ta have been investigated in the temperature range 673–973 K at 1 bar hydrogen pressure. The improvement in hydrogen kinetics and a slight decrease of maximal amount of hydrogen absorbed were observed upon cycling. The rate determining steps are as follows: geometrical contraction for all samples except Zr–10Nb–12Ta; diffusion in the beginning for Zr–10Nb at 973 K Zr–2.5Nb–3Ta at 673 K and 973 K; first order reaction Zr–10Nb–12Ta at all temperatures. The amount of additives, Nb and Ta, is found to have major influence on the mechanism of the absorption process.", publisher = "Elsevier", journal = "Journal of Alloys and Compounds", title = "Kinetics of hydrogen absorption in Zr-based alloys", pages = "162-166", volume = "559", doi = "10.1016/j.jallcom.2013.01.104", url = "https://hdl.handle.net/21.15107/rcub_dais_342" }
Cekić, B., Ćirić, K., Iordoc, M., Marković, S.,& Mitrić, M.. (2013). Kinetics of hydrogen absorption in Zr-based alloys. in Journal of Alloys and Compounds Elsevier., 559, 162-166. https://doi.org/10.1016/j.jallcom.2013.01.104 https://hdl.handle.net/21.15107/rcub_dais_342
Cekić B, Ćirić K, Iordoc M, Marković S, Mitrić M. Kinetics of hydrogen absorption in Zr-based alloys. in Journal of Alloys and Compounds. 2013;559:162-166. doi:10.1016/j.jallcom.2013.01.104 https://hdl.handle.net/21.15107/rcub_dais_342 .
Cekić, Božidar, Ćirić, Katarina, Iordoc, Mihail, Marković, Smilja, Mitrić, Miodrag, "Kinetics of hydrogen absorption in Zr-based alloys" in Journal of Alloys and Compounds, 559 (2013):162-166, https://doi.org/10.1016/j.jallcom.2013.01.104 ., https://hdl.handle.net/21.15107/rcub_dais_342 .