| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1622469 | Journal of Alloys and Compounds | 2009 | 4 Pages |
Abstract
Mechanically activated TiH2/h-BN, TiH2/C and TiH2/B mixtures was studied by temperature-programmed desorption, X-ray diffraction, transmission electron microscopy and X-ray emission spectroscopy. Ball milling in the presence of additives results in a modification of hydrogen occupation sites. Additional Ti-N, Ti-C or Ti-B bonds from chemical bonding of Ti with interstitial N, C and B atoms, are formed in TiH2 due to contact of TiH2 nanoparticles with the respective additive matrix materials. Mixed configurations around Ti atoms with proportional combination of local Ti-H and Ti-N, Ti-C or Ti-B bonds significantly decrease the thermal stability of TiH2. The effect is most pronounced when boron is the additive.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
O.S. Morozova, T.I. Khomenko, Ch. Borchers, A.V. Leonov, E.Z. Kurmaev, A. Moewes,