Publications associées à Cristallisation (chimie)

Additive Manufacturing of Bulk Metallic Glasses-Process, Challenges and Properties: A Review

Roland Logé, Jamasp Jhabvala, Navid Sohrabi

Bulk Metallic Glasses (BMG) are metallic alloys that have the ability to solidify in an amorphous state. BMGs show enhanced properties, for instance, high hardness, strength, and excellent corrosion and wear resistance. BMGs produced by conventional method ...

MDPI2021

Critical crystallization properties of an industrial-grade Zr-based metallic glass used in additive manufacturing

Roland Logé, Jamasp Jhabvala, Navid Sohrabi

The major challenge to overcome when processing metallic glasses (MGs) is to avoid crystallization. Therefore, time-temperature-transformation (TTT) diagrams are used, but they are often derived from experiments in which heating or cooling rates are limite ...

2021

The role of NH3 and DMA in new particle formation from ambient measurements, bias exchange metadynamics and reactive MD simulations

Athanasios Nenes, Satoshi Takahama, Spyros Pandis, Mária Lbadaoui-Darvas

Ammonia (NH3) and organic amines (dimethyl amine, DMA) play an important role in the heteromolecular nucleation of sulfuric acid (H2SO4) and water. Nucleation rates depend on their concentrations. Extremely low amine concentrations can increase nucleation ...

2021

Secondary ice production in NorESM2 climate model: quantifying the impact on Arctic clouds

Athanasios Nenes, Georgia Sotiropoulou

Arctic clouds are among the largest sources of uncertainty in predictions of Arctic weather and climate. This is mainly due to errors in the representation of the cloud thermodynamic phase and the associated radiative impacts, which largely depends on the ...

Copernicus2021

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Véronique Michaud, Yves Leterrier, Dragan Damjanovic, Mohammed Arif Poothanari

The effect of silylation of microfibrillated cellulose (MFC) surfaces on β‐phase formation in poly(vinylidene difluoride) (PVDF) and the resulting viscoelastic and dielectric performance of MFC‐PVDF composites is investigated. Two different organosilanes, ...

2021

Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations

Nicola Marzari, Iurii Timrov, Matteo Cococcioni

The self-consistent evaluation of Hubbard parameters using linear-response theory is crucial for quantitatively predictive calculations based on Hubbard-corrected density-functional theory. Here, we extend a recently introduced approach based on density-fu ...

AMER PHYSICAL SOC2021

Crystallographically Oriented Hybrid Perovskites via Thermal Vacuum Codeposition

Mohammad Khaja Nazeeruddin, Mounir Driss Mensi, Hiroyuki Kanda, Cristina Roldán Carmona, Nadja Isabelle Desiree Klipfel, Cheng Liu

Hybrid lead halide perovskites typically form polycrystalline films that have multiple grain sizes and surface defects. A key engineering challenge toward commercialization is therefore the production of homogeneous, defect-free largearea devices achieving ...

2021

Secondary Ice Formation Processes in climate models

Athanasios Nenes, Georgia Sotiropoulou

Mixed-phase clouds in polar regions play a crucial role in surface ice melting. To accurately predict their radiative impact in climate models, an accurate representation of their microphysical structure is required. However, cloud ice content is generally ...

2021

Mechanical reinforcement and memory effect of strain-induced soft segment crystals in thermoplastic polyurethane-urea elastomers

Nicolas Candau, Oguzhan Oguz, Adrien Julien Demongeot

An amorphous poly(urethane-urea) copolymer composed of 70 wt% poly(ethylene oxide) (PEO) soft segments (SS) (Mw = 2000 g mol−1) and 30 wt% cycloaliphatic hard segments (HS) was subjected to in-situ X-Rays during tensile deformation. Mechanical hardening at ...

2021

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Cristallisation (chimie)

Additive Manufacturing of Bulk Metallic Glasses-Process, Challenges and Properties: A Review

Critical crystallization properties of an industrial-grade Zr-based metallic glass used in additive manufacturing

The role of NH3 and DMA in new particle formation from ambient measurements, bias exchange metadynamics and reactive MD simulations

Secondary ice production in NorESM2 climate model: quantifying the impact on Arctic clouds

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations

Crystallographically Oriented Hybrid Perovskites via Thermal Vacuum Codeposition

Focusing on the liquid role in the vapour liquid solid growth mechanism

Secondary Ice Formation Processes in climate models

Mechanical reinforcement and memory effect of strain-induced soft segment crystals in thermoplastic polyurethane-urea elastomers

Graph Chatbot

Chattez avec Graph Search

Critical crystallization properties of an industrial-grade Zr-based metallic glass used in additive manufacturing

Additive Manufacturing of Bulk Metallic Glasses-Process, Challenges and Properties: A Review

Crystallographically Oriented Hybrid Perovskites via Thermal Vacuum Codeposition

Mechanical reinforcement and memory effect of strain-induced soft segment crystals in thermoplastic polyurethane-urea elastomers

The role of NH3 and DMA in new particle formation from ambient measurements, bias exchange metadynamics and reactive MD simulations

Surface modified microfibrillated cellulose‐poly(vinylidene fluoride) composites: β‐phase formation, viscoelastic and dielectric performance

Secondary ice production in NorESM2 climate model: quantifying the impact on Arctic clouds

Self-consistent Hubbard parameters from density-functional perturbation theory in the ultrasoft and projector-augmented wave formulations

Focusing on the liquid role in the vapour liquid solid growth mechanism

Secondary Ice Formation Processes in climate models