Searched for: subject%3A%22nucleation%22
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Heeremans, Tess (author)
For the first time, we present data on the actual growth rate, supersaturation, viscosity, and growth mechanism that lead to spherulitic growth. So far, fundamental questions regarding the growth conditions, mechanisms, and the necessity of a viscous growth medium have remained unresolved. Surprisingly, we observed a sol-gel transition in...
master thesis 2024
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Krugla, M. (author), Offerman, S.E. (author), Sietsma, J. (author), Hanlon, Dave N. (author)
The production reality of sheet steels from casting to the end product is such that in the cases of ultra- and advanced high-strength steels, we have to deal with the segregation of elements on macro- and microlevels. Both can have a significant impact on the microstructure formation and resulting properties. There are several production stages...
journal article 2024
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dos Santos Avila, D. (author), Offerman, S.E. (author), Santofimia, Maria Jesus (author)
While experiments show that refining the prior austenite grain size can either accelerate or decelerate bainite formation in steels, kinetic models based on the successive nucleation of bainitic ferrite subunits can only predict an acceleration. In this work we develop a physically-based model for bainite kinetics assuming a displacive growth...
journal article 2024
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van der Hijden, Nick J. (author), Giordano, Fabrizio (author), Oliver Scholts, Sebastian O. (author), Sklavenitis, Stavros (author), Bründl, T. (author), Bourgeois, Y. (author), Schrijer, F.F.J. (author), Cazaux, S.M. (author)
Supersonic plumes of water vapour and icy particles have been observed by the Cassini spacecraft during several flybys over Enceladus. These plumes originate from the Tiger Stripes located in the South Polar Terrain (SPT), and indicate the presence of a subsurface ocean under the icy crust which is salty and contains complex organic molecules...
journal article 2024
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Giordano, Fabrizio (author)
In this study, plume experiments were conducted to mimic the thermodynamic conditions on Saturn's moon, Enceladus. The icy moon subsurface ocean and cracks in the surface have been simulated by using a liquid water reservoir and a narrow channel, while the low-pressure environment at Enceladus’ surface was achieved with a vacuum chamber. We...
master thesis 2023
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Hoebus, Laura (author)
In cold regions, the formation and accumulation of ice can cause safety hazards and impede proper operation of equipment. By example, ice accumulation on aircraft wings can increase drag, increase weight, reduce upward force and decrease aircraft speed. <br/><br/>For these reasons, proper anti- or de-icing techniques need to be developed. These...
master thesis 2023
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Nederstigt, Wouter (author)
For the use of screening potential glassmaking recipes the seeding method has been applied to a Molecular Dynamics simulated CaO-SiO₂ system in order to attain the parameters for the Classical Nucleation Theory and construct a Time-Temperature-Transformation (TTT) diagram. Using this TTT diagram, the non-crystallisation temperature and the...
master thesis 2023
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Mulder, J.T. (author), Jenkinson, Kellie (author), Toso, Stefano (author), Prato, Mirko (author), Evers, W.H. (author), Bals, Sara (author), Manna, Liberato (author), Houtepen, A.J. (author)
Lanthanide-doped LiYF4 (Ln:YLF) is commonly used for a broad variety of optical applications, such as lasing, photon upconversion and optical refrigeration. When synthesized as nanocrystals (NCs), this material is also of interest for biological applications and fundamental physical studies. Until now, it was unclear how Ln:YLF NCs grow from...
journal article 2023
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Traka, K. (author)
The present thesis investigates recrystallization and related phenomena in interstitial free (IF) and low carbon (LC) microstructures. Emphasis is given mostly on the early stages of recrystallization, i.e. nucleation stage. The investigations are performed with experimental measurements and computer simulations. In all studies,...
doctoral thesis 2022
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Ibis, F. (author)
Kidney stone formation is a global health problem with increasing prevalence. Stone formation is a physiochemical process involving crystallization of inorganic salts in the presence of biological constituents in the urinary system. To inhibit kidney stone formation, a better understanding of the underlying physicochemical mechanism of stone...
doctoral thesis 2022
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Sklavenitis, Stavros (author)
The Cassini spacecraft, observing the Saturnian system for over 13 years, discovered aspects of the planetary system that were previously unseen. One such discovery is the eruption of geysers (plumes) from the Tiger Stripes on the surface of the icy moon Enceladus. An unexpected liquid water ocean exists underneath Enceladus’ icy crust (Postberg...
master thesis 2022
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Ou, X. (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)
Nucleation is the re-arrangement of a small number of atoms in the structure of a material leading to a new phase. According to the classical nucleation theory, a nucleus will grow if there is an energetically favourable balance between the stability of the newly formed structure and the energy costs associated to the formation of strains and...
journal article 2022
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Qiu, Xiujiao (author), Chen, J. (author), Ye, G. (author), De Schutter, Geert (author)
A 3D reactive transport model at microscale is proposed for simulating the chemical reaction process of alkali silica reaction (ASR) thermodynamically and kinetically including the dissolution of reactive silica, the nucleation and growth of ASR products and the dissolution of calcium hydroxide (CH) and calcium silicate hydrate (C-S-H) as a...
journal article 2022
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Dong, Haokai (author), Chen, Hao (author), Riyahi khorasgani, Ahmadreza (author), Zhang, Boning (author), Zhang, Yongjie (author), Wang, Zhenqiang (author), Zhou, Xiaosheng (author), Wang, Wei (author), van der Zwaag, S. (author)
Mo is widely used as an effective microalloying element to improve mechanical performance of interphase precipitation steels, but the precise role of Mo in interphase precipitation behavior is not fully understood. In this contribution, interphase precipitation behavior in a series of Ti-Mo-bearing low carbon steels is systematically studied,...
journal article 2022
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Eipe, Jonathan Joe (author)
The Static Recrystallization (SRX) phenomenon of austenite in C-Mn steels have a large impact on the final mechanical properties of the steel. However, the austenite recrystallization kinetics are difficult to investigate experimentally, due to solid-state phase transformations during cooling to room temperature. The best model alloys to examine...
master thesis 2021
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de Munck, Vincent (author)
Crystallization is one of the most widely used purification and separation processes. Nevertheless, the initial step of the crystallization process, nucleation, is still poorly understood and highly stochastic. As a result, most crystallization processes lack fine control over the produced crystal properties. Non­ photochemical Laser Induced...
master thesis 2021
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Slooter, R.J. (author), Sluiter, M.H.F. (author), Kranendonk, Winfried (author), Bos, C. (author)
A new approximation to the equations describing Classical Nucleation and Growth Theories, is proposed providing quick, and intuitive insight. It gives a prediction of the mean precipitate radius and number density development under quasi-isothermal conditions. Current “mean-radius”, and “multi-class” approaches to modelling classical nucleation...
journal article 2021
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Traka, K. (author), Sedighiani, K. (author), Bos, C. (author), Galan Lopez, J. (author), Angenendt, Katja (author), Raabe, Dierk (author), Sietsma, J. (author)
A cellular automaton algorithm for curvature-driven coarsening is applied to a cold-rolled interstitial-free steel's microstructure - obtained through electron backscatter diffraction (EBSD). Recrystallization nucleation occurs naturally during the simulation, due to the highly heterogeneous and hence competitive growth among pre-existing ...
journal article 2021
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Imanian Ghazanlou, Siavash (author), Eghbali, Baitallah (author), Petrov, R.H. (author)
The effects of the post-deformation annealing on the microstructural evolution of hot rolled Al7075 matrix composites reinforced with CNTs and GNPs were investigated. The multi-pass hot rolling was applied on the stir cast samples. Annealing was then applied to the composites at 450 °C for 4 h. Microstructural evolution was examined by SEM,...
journal article 2021
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Bergwerff, L. (author), van Paassen, L.A. (author)
The precipitation of calcium carbonate is well studied in many fields of research and industry. Despite the fact that, or perhaps because of the fact that, it is well studied in many fields, different approaches have been used to describe the kinetics of the precipitation process. The aim of this study was to collect and compare the data...
review 2021
Searched for: subject%3A%22nucleation%22
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