scholarly journals Trace metal impurities determination in high-purity polyimide by plasma-based techniques

2019 ◽  
Vol 146 ◽  
pp. 492-497 ◽  
Author(s):  
Rafael F. Santos ◽  
Sandra M. Cruz ◽  
Sindy R. Krzyzaniak ◽  
Fabio A. Duarte ◽  
Paola A. Mello ◽  
...  
Keyword(s):  
Trace Metal ◽  
High Purity ◽  
Metal Impurities

Extraction of trace metal impurities from high-purity inorganic salts

2015 ◽  
Vol 85 (10) ◽  
pp. 2475-2481 ◽  
Author(s):  
V. M. Retivov ◽  
P. A. Volkov ◽  
L. A. Lebedeva ◽  
V. Z. Krasil’shchik ◽  
K. K. Bulatitskii ◽  
...  
Keyword(s):  
Trace Metal ◽  
High Purity ◽  
Inorganic Salts ◽  
Metal Impurities

scholarly journals An investigation progress toward Be-based ablator materials for the inertial confinement fusion

2017 ◽  
Vol 5 ◽  
Author(s):  
Bingchi Luo ◽  
Jiqiang Zhang ◽  
Yudan He ◽  
Long Chen ◽  
Jiangshan Luo ◽  
...  
Keyword(s):  
High Purity ◽  
Inertial Confinement Fusion ◽  
Smooth Surface ◽  
High Deposition Rate ◽  
Inertial Confinement ◽  
Research Subject ◽  
Important Research ◽  
Metal Impurities ◽  
Dc Reactive Magnetron Sputtering ◽  
Confinement Fusion

The Be-based materials with many particular properties lead to an important research subject. The investigation progresses in the fabrication technologies are introduced here, including main three kinds of Be-based materials, such as Be–Cu capsule, $\text{Be}_{2}\text{C}$ ablator and high-purity Be material. Compared with the pioneer workgroup on Be-based materials, the differences in Be–Cu target fabrication were described, and a grain refinement technique by an active hydrogen reaction for Be coating was proposed uniquely. $\text{Be}_{2}\text{C}$ coatings were first prepared by the DC reactive magnetron sputtering with a high deposition rate $({\sim}300~\text{nm}/\text{h})$. Pure polycrystalline $\text{Be}_{2}\text{C}$ films with uniform microstructures, smooth surface, high density $({\sim}2.2~\text{g}\cdot \text{cm}^{3})$ and good optical transparency were fabricated. In addition, the high-purity Be materials with metal impurities in a ppm magnitude were fabricated by the pyrolysis of organometallic Be.

The effect of some trace metal impurities on the electrowinning of zinc from Kidd Creek electrolyte

1992 ◽  
Vol 29 (1-3) ◽  
pp. 413-430 ◽  
Author(s):  
R.M. Morrison ◽  
D.J. MacKinnon ◽  
D.A. Uceda ◽  
P.E. Warren ◽  
J.E. Mouland
Keyword(s):  
Trace Metal ◽  
Metal Impurities
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