Results 1 to 10 of about 69,256 (180)

Molecular spin sensor for in-situ monitoring of crystallization behavior and phase transition in aromatic materials [PDF]

open access: yesNature Communications
Spin-active materials with sensitive electron spin centers have drawn significant attention in quantum sensing due to their unique quantum characteristics. Herein, we report a molecular spin sensor based on metallofullerene Y2@C79N for in-situ monitoring
Linshan Liu   +5 more
doaj   +2 more sources

Nanomodification is an effective methodfor forming the structure of the weld metal. Part II. [PDF]

open access: yesНанотехнологии в строительстве, 2020
The short-term existence of the melt in the weld pool and its overheating, a large temperature gradient near the interface and two-dimensional crystallization centers, in the form of fused grains at the weld pool boundary, reduce the probability and rate
Sizintsev Sergey Valerievich   +3 more
doaj   +1 more source

Formation of sucrose crystallization centers and their growth in a vacuum apparatus

open access: yesBIO Web of Conferences, 2021
The article considers sucrose crystallization as a mass transfer process, which is a phase transition from a liquid phase to a solid phase, and includes two main stages: the formation of crystallization centers and the growth of crystals to the desired ...
Slavyanskiy Anatoliy   +2 more
doaj   +1 more source

Current state of metal melt crystallization theory. Foundry production and metallurgy

open access: yesЛитьë и металлургия, 2022
The classical theory of crystallization of metal melts has been investigated. It is shown that it does not correspond to the second law of thermodynamics. Based on thermodynamic analysis, it was found that the classical theory of crystallization of metal
E. I. Marukovich   +2 more
doaj   +1 more source

Influence of modification of the cast metal structure by solid phase particles on the nucleation of crystallization centers and their stability [PDF]

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2022
The inoculation method has wide possibilities for improving the mechanical and operational properties of cast metal, which makes it possible to create artificial centers of crystallization due to the direct introduction of dispersed refractory particles
Е.Н. Еремин
doaj   +2 more sources

Influence Intensive Plastic Deformation on Phase Formation Process in Amorphous Alloys [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
The influence of intensive plastic deformation on structure and properties of amorphous alloys were investigated experimentally. Using highly sensitive dilatometer techniques shown that intensive plastic deformation of amorphous alloys leads to increased
V.I. Lysov   +3 more
doaj   +1 more source

Scientific problem of metal melts. Solutions

open access: yesЛитьë и металлургия, 2019
In the existing theories of liquid state of metals and alloys the basic structural element is atom. It creates a serious problem in scientific understanding of the mechanism of process of melt and properties of metal melts.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

Crystallization behavior and morphological features of ethylene-vinyl alcohol 44 copolymer

open access: yeseXPRESS Polymer Letters, 2022
This work is a first attempt to study the crystallization behavior of ethylene-vinyl alcohol copolymer with 44 mol% of ethylene units (EVOH44) and to observe the supermolecular structures developed during its crystallization.
Clement Freymond   +6 more
doaj   +1 more source

Crystal nucleation in adroplet based microfluidic crystallizer [PDF]

open access: yes, 2012
The study presented in this paper deals with the determination of eflucimibe nucleation rate in a droplet based microfluidic crystallizer. The experimental device allows the storage of up to 2000 monodispersed droplets to get nucleation statistics and ...
Biscans, Béatrice, Teychene, Sébastien
core   +1 more source

Diffraction-based automated crystal centering

open access: yesJournal of Synchrotron Radiation, 2007
A fully automated procedure for detecting and centering protein crystals in the X-ray beam of a macromolecular crystallography beamline has been developed. A cryo-loop centering routine that analyzes video images with an edge detection algorithm is first used to determine the dimensions of the loop holding the sample; then low-dose X-rays are used to ...
Jinhu, Song   +5 more
openaire   +2 more sources

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