Back to Search
Start Over
Research of High-Purity Lanthanum Prepared by Zone Refining.
- Source :
- Materials (1996-1944); Jul2022, Vol. 15 Issue 13, p4603-N.PAG, 11p
- Publication Year :
- 2022
-
Abstract
- In this paper, the purification of lanthanum was studied by using zone-refining technology. The equilibrium distribution coefficient of impurities was calculated using a liquidus slope method to reveal impurities' distribution properties. Meanwhile, the analysis of impurities' concentration distribution for Fe and Si has been investigated based on the SPIM model. The calculated findings based on SPIM were found to be in good agreement with the experimental results. In addition, the influence of the zone-refining rate and the number of passes on the purification of lanthanum were studied. It was found that after ten times of zone refining with a zone-refining rate of 5 mm/min, the contents of Fe and Si impurities in metal decreased to 4 and 2 ppm, respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- ZONE melting
LANTHANUM
METAL inclusions
LIQUIDUS temperature
UNITS of time
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 15
- Issue :
- 13
- Database :
- Complementary Index
- Journal :
- Materials (1996-1944)
- Publication Type :
- Academic Journal
- Accession number :
- 157999069
- Full Text :
- https://doi.org/10.3390/ma15134603