Showing 41 - 60 results of 283 for search '"nucleation"', query time: 0.06s Refine Results
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    COMPARATIVE RESEARCHES OF FRACTURES OF HIGH-STRENGTH CAST IRON IN THE AS-CAST AND DEFORMED STATE by A. I. Pokrovsky, I. N. Khrol

    Published 2016-01-01
    Subjects: “…the results of comparative studies of fracture surfaces of high-strength cast iron in the as-cast state and after hot direct extrusion through an aperture of a conical die are presented. the shape change of graphite inclusions and components of the metal matrix is examined with increasing the reduction ratio from 0 (as-cast state) to 80%. for the fist time, using the electrochemical etching of the metal matrix of the cast iron, it is demonstrated experimentally that at plastic deformation the ductile flow of graphite inclusions occurs without fracturing of the latter. the surface morphology of a deformed graphite inclusion is revealed. it is shown that inside the inclusion the strain is distributed non-uniformly: the peripheral zones are deformed to a larger extent while the central part may retain its original radial structure. the fact that the most part of graphite inclusions on the fracture surface of the deformed cast iron appeared undamaged (very small amount of fractured inclusions was observed) testifies against the common opinion that graphite acts as a crack nucleation site. a hypothesis is put forward that the crack nucleates in the metal matrix, presumably at the pearlite/ferrite interface, and propagates from one graphite inclusion to another rounding but not damaging the latter.…”
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  5. 45

    Effect of EDTA on the Growth Kinetics and Structural and Optical Properties of KDP Crystal by Anisur Rahman, Jiban Podder

    Published 2010-01-01
    “…The induction period 𝜏 was measured, experiments were performed at selected degrees of supersaturation (C/C∗), and the critical nucleation parameters like interfacial energy (𝜎) were calculated, based on the classical theory of nucleation. …”
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  6. 46

    Insights into Factors Influencing Thermoplastic Elastomer (TPE) Foam Production and the Role of Induced Crystallization by Nigus Maregu Demewoz

    Published 2024-01-01
    “…In TPE, crystallinity can be induced through various means including gas sorption, stress concentration, extrusion, annealing, and self-nucleation. These induced crystals serve as nucleation sites for heterogeneous nucleation during foaming. …”
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  7. 47

    Electronic Properties of TiO2 Nanoparticles Films and the Effect on Apatite-Forming Ability by Johanna Löberg, Jenny Perez Holmberg, Ingela Mattisson, Anna Arvidsson, Elisabet Ahlberg

    Published 2013-01-01
    “…For the rougher surfaces, the nucleation is delayed but once it starts, thick layers are formed. …”
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  8. 48

    Simulating Marine New Particle Formation and Growth Using the M7 Modal Aerosol Dynamics Modal by Ciaran Monahan, Henri Vuollekoski, Markku Kulmala, Colin O'Dowd

    Published 2010-01-01
    “…Simulations were carried out for three different nucleation schemes involving (1) kinetic self-nucleation of OIO (2) nucleation via OIO activation by H2SO4 and (3) nucleation via OIO activation by H2SO4 plus condensation of a low-volatility organic vapour. …”
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  9. 49

    Bacterial Ice Crystal Controlling Proteins by Janet S. H. Lorv, David R. Rose, Bernard R. Glick

    Published 2014-01-01
    “…Ice crystal controlling proteins include both antifreeze and ice nucleation proteins. Antifreeze proteins minimize freezing damage by inhibiting growth of large ice crystals, while ice nucleation proteins induce formation of embryonic ice crystals. …”
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  10. 50

    The evolution process between the earthquake swarm beneath the Noto Peninsula, central Japan and the 2024 M 7.6 Noto Hanto earthquake sequence by Zhigang Peng, Xinglin Lei, Qing-Yu Wang, Dun Wang, Phuc Mach, Dongdong Yao, Aitaro Kato, Kazushige Obara, Michel Campillo

    Published 2025-01-01
    “…Several physical mechanisms of earthquake nucleation, such as pre-slip, cascade triggering, aseismic slip, and fluid-driven models, have been proposed. …”
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  11. 51

    Stability of Human Gallbladder Bile: Effect of Freezing by Paul Janowitz, Richard Mason, Wolfgang Kratzer

    Published 2001-01-01
    “…A significant difference arises in the context of subdivision of the group to the nucleation time. Before freezing, most patients had a nucleation time between five and eight days, which shortened to between one and four days after thawing (P=0.0100). …”
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  12. 52

    Surface Crystallization in Mg-Based Bulk Metallic Glass during Copper Mold Casting by Xin Wang

    Published 2014-01-01
    “…Overheating of the melt and nucleation induced by the surface of copper mold play key roles in the abnormal crystallization. …”
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    Preparation and Supercritical CO2 Foaming of Modified Nanocrystalline Cellulose Reinforced Polylactic Acid Bionanocomposites by Dan Chen, Ping Zhang, Jiajun Wang, De Gao

    Published 2022-01-01
    “…The results suggested that a sufficient number of nanoparticles increased the nucleation site for foaming and played a vital role in heterogeneous nucleation in the foaming system. …”
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  15. 55

    Effect of Zr on inclusions and microstructure of non-quenched and tempered steel F38MnVS by Yucheng Wang, Yang Li, Zhouhua Jiang, Meng Sun, Shuai Ma, Yunqie Mao, Yanshuo Ma, Tianci Li, Dengyunfei Nie, Rui Yang

    Published 2025-03-01
    “…By evaluating the mismatch degree, the mismatch degree between ZrO2 and α-Fe is predicted to be 6.9%, so it can be utilized as an effective heterogeneous nucleation core to induce α-Fe nucleation. In conjunction with the manganese-depleted zone theory, both of them jointly promote the nucleation of α-Fe. …”
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  16. 56

    INHIBITION OF CALCIUM OXALATE CRYSTALLIZATION CAUSING KIDNEY STONES IN VITRO BY AN EXTRACT OF Bluméa balsamifera by Nguyen Pham Tuan, Bang Hong Lam, Nguyen Pham Tu, Le Thao Nguyen, Tran Duc Tai

    Published 2021-02-01
    “…The inhibitory effect of Bluméa balsamifera extract on the nucleation, growth, and aggregation phases of calcium oxalate formation has been studied. …”
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  17. 57

    Crystallization and Melting Behavior of UHMWPE Composites Filled by Different Carbon Materials by Anqi Li, Fuzhen Li, Kancheng Mai, Zishou Zhang

    Published 2022-01-01
    “…The results indicated that there are coexistence of the heterogeneous nucleation and the hindering effect of crystal growth by carbon materials for UHMWPE crystallization. …”
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  18. 58

    Influence of Strain and Stress Triaxiality on the Fracture Behavior of GB 35CrMo Steel during Hot Tensile Testing by Zheng Li, Yajun Zhou, Sanxing Wang

    Published 2018-01-01
    “…To better understand cavitation nucleation and crack initiation in 35CrMo steel during high-temperature tensile processing and the effect of stress triaxiality on its fracture behaviors, uniaxial and notch high-temperature tensile tests were performed. …”
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  19. 59

    Impacts caused by the closure of schools in the countryside in the municipality of Arraias in the conception of the protagonists by Luiz Felipe de Castro Varanda, Helena Quirino Porto Aires

    Published 2024-12-01
    “…This study is an excerpt from the Undergraduate Thesis in Pedagogy at the Federal University of Tocantins (UFT) and aims to analyze the school closure policy and the process of school nucleation in the municipality of Arraias (TO), as well as the impacts resulting from these measures. …”
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  20. 60

    Damage-failure transition in titanium alloy Ti-6Al-4V under dwell fatigue loads by Vladimir Oborin, Aleksandr Balakhnin, Oleg Naimark, Yuri Gornostyrev, Vladimir Pushin, Nataliya Kuranova, Dimitrii Rasposienko, Aleksey Svirid, Aleksey Uksusnikov

    Published 2024-01-01
    “…Damage-failure transition is considered as critical phenomena, the structural-scaling transition, when the damage develops as specific phase with characteristic stages: nucleation of new phase and the phase growth kinetics. …”
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