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Hydrogenation of mechanically alloyed titanium-based powders / Abeer Arafa Elsayed Dagher ; Supervised Mai Kamal Fouad , Tarek Mohamed Moustafa , Ehab Mohamed Abdelrahman

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Abeer Arafa Elsayed Dagher , 2014Description: 139 P. : charts , facsimiles ; 30cmOther title:
  • امتصاص وتخزين الهيدروجين في سبائك التايتنيوم [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Chemical Engineering Summary: This work focused on studying the hydrogen storage characteristics in some of the Tibased alloys. Amorphous alloys were synthesized by mechanical alloying. Subsequent annealing produced mainly crystalline phases. Hydrogenation of the amorphous Ti-Zr- Ni alloys, at 300 {u00B0}C, exhibited good hydriding properties. However, hydrogenation of the Ti-V-Ni counterparts' powders exhibited slower rates, though, with higher hydrogen capacity. In general, hydrogenation of the annealed crystalline alloys showed slower hydrogenation kinetic rates due to the formation of a hindering surface oxide layer. In addition, a first investigation of these alloys hydrogenation / dehydrogenation at cryogenic temperature of {u2248} -193 {u00B0}C showed very fast kinetic rates. The mechanically alloyed powders were successfully hydrogenated at room temperature by reactive mechanical milling
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.04.Ph.D.2014.Ab.H (Browse shelf(Opens below)) Not for loan 01010110064207000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.04.Ph.D.2014.Ab.H (Browse shelf(Opens below)) 64207.CD Not for loan 01020110064207000

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Chemical Engineering

This work focused on studying the hydrogen storage characteristics in some of the Tibased alloys. Amorphous alloys were synthesized by mechanical alloying. Subsequent annealing produced mainly crystalline phases. Hydrogenation of the amorphous Ti-Zr- Ni alloys, at 300 {u00B0}C, exhibited good hydriding properties. However, hydrogenation of the Ti-V-Ni counterparts' powders exhibited slower rates, though, with higher hydrogen capacity. In general, hydrogenation of the annealed crystalline alloys showed slower hydrogenation kinetic rates due to the formation of a hindering surface oxide layer. In addition, a first investigation of these alloys hydrogenation / dehydrogenation at cryogenic temperature of {u2248} -193 {u00B0}C showed very fast kinetic rates. The mechanically alloyed powders were successfully hydrogenated at room temperature by reactive mechanical milling

Issued also as CD

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