In Situ TEM tensile testing of bicrystals with tailored misorientation angles

Kiani, Mehrdad T.; Gan, Lucia T.; Traylor, Rachel; Yang, Rui; Barr, Christopher M.; Hattar, Khalid Mikhiel; Fan, Jonathan A.; Gu, X. Wendy

doi:10.1016/j.actamat.2021.117505

Cited by 7 publications

(1 citation statement)

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“…Moreover, in situ TEM (and SEM) straining experiments are powerful tools for understanding the microstructure evolution of small-scale specimens under the stress field. These have received considerable attention for deformation in the grain interior [144][145][146][147][148][149][150][151][152][153][154][155][156][157][158][159], deformation [160][161][162][163][164][165][166][167][168][169][170][171][172][173][174], and fracture [175][176][177][178] around grain boundaries. Among them, some specimen holders can explore the simultaneous mechanical behavior during the microstructure evolution [146,147,[150][151][152]154,156,157,[159][160][161][16...…”

Section: Dynamics and Quantitative Evaluation Associated With The Gra...mentioning

confidence: 99%

Quantitative Characterization by Transmission Electron Microscopy and Its Application to Interfacial Phenomena in Crystalline Materials

2024

Materials

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This paper reviews quantitative characterization via transmission electron microscopy (TEM) and its application to interfacial phenomena based on the results obtained through the studies. Several signals generated by the interaction between the specimen and the electron beam with a probe size of less than 1 nm are utilized for a quantitative analysis, which yields considerable chemical and physical information. This review describes several phenomena near the interfaces, e.g., clear solid–vapor interface (surface) segregation of yttria in the zirconia nanoparticles by an energy-dispersive X-ray spectroscopy analysis, the evaluation of the local magnetic moment at the grain boundary in terms of electron energy loss spectroscopy equipped with TEM, and grain boundary character dependence of the magnetism. The direct measurement of the stress to the dislocation transferred across the grain boundary and the microstructure evolution focused on the grain boundary formation caused by plastic deformation are discussed as examples of material dynamics associated with the grain boundary. Finally, the outlook for future investigations of interface studies, including the recent progress, is also discussed.

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