Results 61 to 70 of about 969,377 (286)

Characterization of aerosol particles by their heterogeneous nucleation

, 2022
S.732-735An expansion type cloud condensation nucleus counter / Kevin spectrometer has been operated with and various organic liquids.
Windt, H., Holländer, W., Dunkhorst, W.
core   +1 more source

Nanoscale Mapping of Non-Uniform Heterogeneous Nucleation Kinetics Mediated by Surface Chemistry [PDF]

, 2019
Nucleation underlies the formation of many liquid-phase synthetic and natural materials with applications in materials chemistry, geochemistry, biophysics, and structural biology.
Mei, Wang, Taylor, Woehl, Chiwoo, Park, Thilini Umesha, Dissanayake, Karen J., Gaskell   +4 more
core   +2 more sources

Homogeneous vs. heterogeneous nucleation in water-dicarboxylic acid systems [PDF]

Atmospheric Chemistry and Physics, 2009
Binary heterogeneous nucleation of water-succinic/glutaric/malonic/adipic acid on nanometer-sized particles is investigated within the frame of classical heterogeneous nucleation theory. Homogeneous nucleation is also included for comparison. It is found
A. I. Hienola, H. Vehkamäki, I. Riipinen, M. Kulmala   +3 more
doaj  

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Temperature-gradient effects on heterogeneous ice nucleation from supercooled water

AIP Advances, 2019
Investigating the nucleation and freezing behavior of supercooled water under temperature gradients is of significance for theoretical research and practical application.
Liping Wang, Weiliang Kong, Fuxin Wang, Hong Liu   +3 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Effect of substrate micro-morphology on heterogeneous nucleation [PDF]

China Foundry, 2012
The heterogeneous nucleation process of NH4Cl crystals from a NH4Cl-70wt.%H2O solution on rough chilling substrates was considered in this paper. Scratched and etched substrates of aluminum were prepared with different surface morphologies.
Zhang Ying, Wang Meng, Liu Xin
doaj  

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Simultaneous refinement of α-Mg grains and β-Mg17Al12 in Mg-Al based alloys via heterogeneous nucleation on Al8Mn4Sm

Journal of Magnesium and Alloys, 2023
Due to the significant differences in the formation temperature and crystal structure between the primary α-Mg and eutectic β-Mg17Al12, it is a great challenge to achieve simultaneous refinement of the primary and eutectic phases in Mg-Al based alloys ...
Jun-Chen Chen, Mei-Xuan Li, Zhi-Yang Yu, Zhao-Yuan Meng, Cheng Wang, Zhi-Zheng Yang, Hui-Yuan Wang   +6 more
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source