Observation of the Microstructure of Grain Boundary Oxides in Superconducting RF-Quality Niobium With High-Resolution TEM (Transmission Electron Microscope)

All superconducting radio-frequency (RF) cavities are currently manufactured using high-purity Nb sheet, and although properties of the best cavities are excellent, there is still considerable variability, and we examine here the chemistry at the Nb grain boundaries (GBs), which may be a source of c...

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Veröffentlicht in:	IEEE transactions on applied superconductivity 2014-02, Vol.24 (1), p.68-73
Hauptverfasser:	Sung, Z-H, Lee, P. J., Larbalestier, D. C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cavity resonators Electrical engineering. Electrical power engineering Electron microscopes Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology Focused ion beam (FIB) Grain boundaries grain boundaries (GBs) Ion beams Microelectronic fabrication (materials and surfaces technology) Microstructure Niobium Power electronics, power supplies Radio frequency Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices superconducting radio-frequency (RF) niobium cavity Surface morphology Surface treatment transmission electron microscopy (TEM)
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