| Autor: |
Tian, Li-Sen, Yin, Yan-Xi, Hu, Zhi-Fang, Jiang, Hong-Lin, Li, Zhong-Qi, Wang, Li-Jun |
| Zdroj: |
Rare Metals; Apr2014, Vol. 33 Issue 2, p161-165, 5p |
| Abstrakt: |
Single variable and deposition weight methods were adopted in the experiment. The hafnium crystal bar was fabricated by the iodide process. Influence of hafnium filament temperature ( K value), temperature controlling method, types of feed, and the loading methods on the deposition rate were studied. The results show that the K value, temperature control method, types of feed, and the loading methods have obvious effects on the deposition rate of the hafnium crystal bar. The deposition rate increases with the K value rising in the range of certain temperature; the salt bath controlling temperature method could effectively obtain the better deposition rate; the greater the contact areas of the feeds are, the faster the deposition rate is. So, the optimal iodide deposition techniques of preparing hafnium crystal bar are as follows: hafnium turnings as feed, molybdenum feed retainer charging, salt bath temperature controlling under the higher K value. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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