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Your search keyword '"Dai, Yong-nian"' showing total 197 results
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197 results on '"Dai, Yong-nian"'

7. Enhanced photothermal dehydration of methanol over W18O49/Au/SAPO-34 catalysts with broadened light absorption.

Author

Tang, Ya-Qin, Yan, Meng-Xia, Lu, Chang-Qian, Li, Shao-Yuan, Wei, Kui-Xian, Qu, Tao, Ma, Wen-Hui, Dai, Yong-Nian, Li, Kong-Zhai, Luo, Da-Jun, Zhang, Xue-Liang, and Liu, Yi-Ke

Abstract

Copyright of Rare Metals is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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19. Separation and enrichment mechanism of C54–TiSi2from hypoeutectic Ti–65 wt.% Si alloy during directional solidification via alternating electromagnetic fields

Author

Zhu, Kui-song, Hu, Jing-fei, Ma, Wen-hui, Wei, Kui-xian, and Dai, Yong-nian

Abstract

The effects of directional solidification parameters and the coupling of directional solidification parameters and alternating electromagnetic fields on separation and enrichment of the C54–TiSi2phase were investigated in a directionally solidified hypoeutectic Ti–65 wt.% Si alloy. The results indicated that by increasing the pull-down velocity at a given position within the ingot, the cooling rate, growth rate, and temperature gradient of ingot could be increased. At a pull-down velocity near 5 μm/s, the temperature gradient, cooling rate, and growth rate decreased with increasing the thickness of the C54–TiSi2-rich layer. Electromagnetic fields enhanced mass transfer at pull-down velocities of 5, 10, 15, and 20 μm/s, with resulting enriched layer thicknesses of 15, 10, 10, and 5 mm, respectively. By increasing the percentage of Ti in the Ti–Si alloy from 25 to 35 wt.%, the thickness of the C54–TiSi2-rich layer was increased from 2.5 to 3.3 cm. However, the maximum C54–TiSi2content obtained experimentally in this layer decreased from 92.06 to 79.49 mass%.

Published
2024
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38. Band gap modulation of nanostructured WO3 nanoplate film by Ti doping for enhanced photoelectrochemical performance.

Author

Tang, Ya-qin, Jiang, Di, Wang, Huan, Zheng, Hong-ye, Ren, Lu-jun, Wei, Kui-xian, Ma, Wen-hui, Dai, Yong-nian, Luo, Da-jun, Zhang, Xue-liang, and Liu, Yi-ke

Abstract

Copyright of Journal of Central South University is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022
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