Random vibration movements of liquid nanosized Pb inclusions in Al
Само за регистроване кориснике
2004
Аутори
Johnson, ErikAndersen, Jacob S.
Levinsen, Mogens
Steenstrup, Stig
Prokofjev, Sergei
Zhilin, Victor
Dahmen, Ulrich
Radetić, Tamara
Turner, John H.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Transmission electron microscopy has been used to study the behavior of liquid nanosized Pb inclusions in Al ribbons made by rapid solidification. In situ heating experiments carried out in the temperature range from around 375 to 450 °C have shown that liquid inclusions with sizes from around 10–50 nm, that are trapped on dislocations, perform random vibrations around their positions of attachment with vibration periods of some fractions of seconds. The amplitudes of the vibrations in directions perpendicular to the dislocations are a few nanometers, while the motion in directions parallel to the dislocations can be more than an order of magnitude larger. Under conditions where two or more inclusions, attached to a dislocation line, display one-dimensional random motion the inclusions are rarely seen to coalesce. Movement of the inclusions has been monitored by video and shorter sequences have been digitized and analyzed frame-by-frame. The analysis shows that the step lengths have Ga...ussian distributions indicative of random walks. Fractal analysis of the paths shows that the fractal dimension is close to two which agrees well with the observations that the inclusions carry out linear random walks in a confined space.
Кључне речи:
Liquid lead inclusions / Inclusions on dislocations / In situ TEM / Random oscillations / Fractal analysisИзвор:
Materials Science and Engineering: A, 2004, 375-377, 1-2 SPEC. ISS., 951-955Издавач:
- Elsevier B.V.
Финансирање / пројекти:
- Danish Natural Sciences Research Council
- Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, of the US Department of Energy under Contract No. DE-AC03-76SF00098
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Johnson, Erik AU - Andersen, Jacob S. AU - Levinsen, Mogens AU - Steenstrup, Stig AU - Prokofjev, Sergei AU - Zhilin, Victor AU - Dahmen, Ulrich AU - Radetić, Tamara AU - Turner, John H. PY - 2004 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7284 AB - Transmission electron microscopy has been used to study the behavior of liquid nanosized Pb inclusions in Al ribbons made by rapid solidification. In situ heating experiments carried out in the temperature range from around 375 to 450 °C have shown that liquid inclusions with sizes from around 10–50 nm, that are trapped on dislocations, perform random vibrations around their positions of attachment with vibration periods of some fractions of seconds. The amplitudes of the vibrations in directions perpendicular to the dislocations are a few nanometers, while the motion in directions parallel to the dislocations can be more than an order of magnitude larger. Under conditions where two or more inclusions, attached to a dislocation line, display one-dimensional random motion the inclusions are rarely seen to coalesce. Movement of the inclusions has been monitored by video and shorter sequences have been digitized and analyzed frame-by-frame. The analysis shows that the step lengths have Gaussian distributions indicative of random walks. Fractal analysis of the paths shows that the fractal dimension is close to two which agrees well with the observations that the inclusions carry out linear random walks in a confined space. PB - Elsevier B.V. T2 - Materials Science and Engineering: A T1 - Random vibration movements of liquid nanosized Pb inclusions in Al EP - 955 IS - 1-2 SPEC. ISS. SP - 951 VL - 375-377 DO - 10.1016/j.msea.2003.10.076 ER -
@article{ author = "Johnson, Erik and Andersen, Jacob S. and Levinsen, Mogens and Steenstrup, Stig and Prokofjev, Sergei and Zhilin, Victor and Dahmen, Ulrich and Radetić, Tamara and Turner, John H.", year = "2004", abstract = "Transmission electron microscopy has been used to study the behavior of liquid nanosized Pb inclusions in Al ribbons made by rapid solidification. In situ heating experiments carried out in the temperature range from around 375 to 450 °C have shown that liquid inclusions with sizes from around 10–50 nm, that are trapped on dislocations, perform random vibrations around their positions of attachment with vibration periods of some fractions of seconds. The amplitudes of the vibrations in directions perpendicular to the dislocations are a few nanometers, while the motion in directions parallel to the dislocations can be more than an order of magnitude larger. Under conditions where two or more inclusions, attached to a dislocation line, display one-dimensional random motion the inclusions are rarely seen to coalesce. Movement of the inclusions has been monitored by video and shorter sequences have been digitized and analyzed frame-by-frame. The analysis shows that the step lengths have Gaussian distributions indicative of random walks. Fractal analysis of the paths shows that the fractal dimension is close to two which agrees well with the observations that the inclusions carry out linear random walks in a confined space.", publisher = "Elsevier B.V.", journal = "Materials Science and Engineering: A", title = "Random vibration movements of liquid nanosized Pb inclusions in Al", pages = "955-951", number = "1-2 SPEC. ISS.", volume = "375-377", doi = "10.1016/j.msea.2003.10.076" }
Johnson, E., Andersen, J. S., Levinsen, M., Steenstrup, S., Prokofjev, S., Zhilin, V., Dahmen, U., Radetić, T.,& Turner, J. H.. (2004). Random vibration movements of liquid nanosized Pb inclusions in Al. in Materials Science and Engineering: A Elsevier B.V.., 375-377(1-2 SPEC. ISS.), 951-955. https://doi.org/10.1016/j.msea.2003.10.076
Johnson E, Andersen JS, Levinsen M, Steenstrup S, Prokofjev S, Zhilin V, Dahmen U, Radetić T, Turner JH. Random vibration movements of liquid nanosized Pb inclusions in Al. in Materials Science and Engineering: A. 2004;375-377(1-2 SPEC. ISS.):951-955. doi:10.1016/j.msea.2003.10.076 .
Johnson, Erik, Andersen, Jacob S., Levinsen, Mogens, Steenstrup, Stig, Prokofjev, Sergei, Zhilin, Victor, Dahmen, Ulrich, Radetić, Tamara, Turner, John H., "Random vibration movements of liquid nanosized Pb inclusions in Al" in Materials Science and Engineering: A, 375-377, no. 1-2 SPEC. ISS. (2004):951-955, https://doi.org/10.1016/j.msea.2003.10.076 . .