scholarly journals Tracer Diffusion Coefficients of Li Ions in LixMn2O4 Thin Films Observed by Isotope Exchange Secondary Ion Mass Spectrometry

2020 ◽  
Vol 124 (42) ◽  
pp. 22981-22992
Author(s):  
Naoaki Kuwata ◽  
Gen Hasegawa ◽  
Daiki Maeda ◽  
Norikazu Ishigaki ◽  
Takamichi Miyazaki ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Diffusion Coefficients ◽  
Isotope Exchange ◽  
Secondary Ion Mass Spectrometry ◽  
Tracer Diffusion ◽  
Ion Mass Spectrometry ◽  
Tracer Diffusion Coefficients ◽  
Secondary Ion

scholarly journals Tracer diffusion coefficients of Li+ ions in c-axis oriented LixCoO2 thin films measured by secondary ion mass spectrometry

2021 ◽  
Vol 23 (3) ◽  
pp. 2438-2448
Author(s):  
Gen Hasegawa ◽  
Naoaki Kuwata ◽  
Yoshinori Tanaka ◽  
Takamichi Miyazaki ◽  
Norikazu Ishigaki ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Discharge Rate ◽  
Tracer Diffusion ◽  
Lithium Diffusion ◽  
Ion Mass Spectrometry ◽  
Key Factor ◽  
Li Ion ◽  
Tracer Diffusion Coefficients ◽  
Secondary Ion

Lithium diffusion is a key factor in determining the charge/discharge rate of Li-ion batteries. Herein, we study the tracer diffusion coefficient of lithium ions in the c-axis oriented LiCoO2 thin film using secondary ion mass spectrometry (SIMS).

An investigation of cobalt oxide based nanocrystalline thin films by secondary ion mass spectrometry

2001 ◽  
Vol 15 (17) ◽  
pp. 1621-1624 ◽  
Author(s):  
Simona Barison ◽  
Davide Barreca ◽  
Sergio Daolio ◽  
Monica Fabrizio ◽  
Eugenio Tondello
Keyword(s):  
Mass Spectrometry ◽  
Thin Films ◽  
Cobalt Oxide ◽  
Secondary Ion Mass Spectrometry ◽  
Ion Mass Spectrometry ◽  
Secondary Ion ◽  
Nanocrystalline Thin Films

scholarly journals Measurements of the Diffusion of Iron and Carbon in Single Crystal NiAl using Ion Implantation and Secondary Ion Mass Spectrometry

1998 ◽  
Vol 527 ◽  
Author(s):  
R. J. Hanrahan ◽  
S. P. Withrow ◽  
M. Puga-Lambers
Keyword(s):  
Mass Spectrometry ◽  
Ion Implantation ◽  
Single Crystal ◽  
Secondary Ion Mass Spectrometry ◽  
Tracer Diffusion ◽  
Dynamic Strain ◽  
Enhanced Diffusion ◽  
Ion Mass Spectrometry ◽  
Impurity Elements ◽  
Secondary Ion

ABSTRACTClassical diffusion measurements in intermetallic compounds are often complicated by low diffusivities or low solubilities of the elements of interest. Using secondary ion mass spectrometry for measurements over a relatively shallow spatial range may be used to solve the problem of low diffusivity. In order to simultaneously obtain measurements on important impurity elements with low solubilities we have used ion implantation to supersaturate a narrow layer near the surface. Single crystal NiAl was implanted with either 12C or both 56Fe and 12C in order to investigate the measurement of substitutional (Fe) versus interstitial (C) tracer diffusion and the cross effect of both substitutional and interstitial diffusion. When C alone was implanted negligible diffusion was observed over the range of times and temperatures investigated. When both Fe and C were implanted together significantly enhanced diffusion of the C was observed, which is apparently associated with the movement of Fe. This supports one theory of dynamic strain aging in Fe alloyed NiAl.

Oxygen diffusivities in mullite/zirconia composites measured by 18O/16O isotope exchange and secondary ion mass spectrometry

2008 ◽  
Vol 23 (2) ◽  
pp. 353-358 ◽  
Author(s):  
Hong-Da Ko ◽  
Chien-Cheng Lin
Keyword(s):  
Mass Spectrometry ◽  
Isotope Exchange ◽  
Secondary Ion Mass Spectrometry ◽  
Fixed Temperature ◽  
Wide Range ◽  
Zirconia Composites ◽  
Ion Mass Spectrometry ◽  
O Isotope ◽  
Secondary Ion ◽  
Range Of Values

Oxygen diffusivities in mullite/zirconia composites were measured by 18O/16O isotope exchange and secondary ion mass spectrometry. They exhibited a wide range of values from 10−21 to 10−10 m2/s at temperatures between 1000 and 1350 °C in the composites with 0 to 80 vol% zirconia. At a fixed temperature, oxygen diffusivities in high-zirconia composites were larger by at least eight orders of magnitude than those in low-zirconia composites. The percolation threshold occurred between 30 and 40 vol% zirconia, where oxygen diffusivities dramatically changed. There was a clear tendency of the activation energies of oxygen diffusion in composites to decrease with increasing zirconia contents. The large oxygen diffusivities in the high-zirconia composites were attributed to the interconnected channels of zirconia from the microstructural aspect.

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