2018年10月11日 · The φ scan XRD pattern suggested the presence of NbTi lattice rotated by 90° in the NbTi (hh0) planes, and the cross-sectional STEM and surface AFM images supported the in-plane orientation...

2019年10月1日 · The XRD patterns reveal that the composite is mainly composed of α-Fe, (NbTi)C and NbTi phase. By combining XRD and EDS results, it can be confirmed that the cermet layer is mainly composed of (NbTi)C phase. The 2θ positions of major diffraction peaks of (NbTi)C are locate at 35.5, 41.3 and 59.9, which is locate at the positions between TiC ...

2020年11月23日 · The robust superconducting transition temperature of NbTi under ultrahigh pressure can be explained by a synergistic effect of the enhanced phonon frequency, the modestly reduced total electron-phonon coupling, and the …

2025年2月12日 · Parabolic oxidation kinetics were observed for NbTi–10Ni and NbTi–5Co, while linear oxidation kinetics were found for NbTi–10Cr and NbTi–10 (CoCrNi). Microstructures and oxide layers are characterized using X-ray diffraction, electron backscatter diffraction, energy-dispersive X-ray spectroscopy, and scanning electron microscopy.

2024年12月15日 · This study investigates the superconducting properties of additive manufactured in-situ NbTi alloy using laser powder bed fusion. Laser parameters were optimised for a maximum microstructural density and lowest Nb segregation fraction.

2020年12月25日 · X-ray diffraction (XRD) scans shown in Fig. 1 show the sample to be a single phase, body-centred cubic β-Nb(Ti) solid solution. This differs from the final microstructure in NbTi wires, where α-titanium nanoprecipitates are present.

2017年7月26日 · Superconducting NbTi alloys have been successfully fabricated by a simple powder processing route involving ball-milling, pressing and annealing. The microstructure and superconducting properties of the NbTi alloys after each processing step have been characterised and compared to the microstructure and performance of NbTi wire manufactured by ...

2024年7月1日 · Structural and physical properties of a new niobium- and titanium-rich high-entropy alloy (NbTi) \(_{0.67}\) (MoHfV) \(_{0.33}\) were determined using various bulk physical properties measurements. SEM and XRD data reveal that the alloy consists of two bcc phases.

We have investigated the effect of initial microstructures on the change in critical current density (Jc) of Nb-46.5 wt%Ti (NbTi) superconducting material. It is well known that α-Ti phases...

NbTi–Nb3Sn–NbTi superconducting joints were fabricated by resistive welding. The microstructure and connecting status were estimated using an X-ray 3D microscopic imaging system online without...