نتایج جستجو برای: nano recrystallization

تعداد نتایج: 54514  

2017
Y. Iwasaki K. Fujimoto

Secondary recrystallization id grain-oriented silicon steel is studied by the high-temperature background damping. Abnormal grain growth involves an abrupt drop of the background. The temperatures of initiation and completion of the secondary recrystallization are, thus, determined for the sane sample from the definite change in background with increasing temperature. The background measured on...

Journal: :Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2015
Anne-Laure Helbert Alice Moya Tomas Jil Michel Andrieux Michel Ignat François Brisset Thierry Baudin

In this paper, the traceability of copper from the anode to the cathode and then the wire rod has been studied in terms of impurity content, microstructure, texture, recrystallization kinetics, and ductility. These characterizations were obtained based on secondary ion mass spectrometry, differential scanning calorimetry (DSC), X-ray diffraction, HV hardness, and electron backscattered diffract...

Journal: :Chemical Engineering Science 2021

The spray flash evaporation process enables to recrystallize organic materials on submicron and nano scale is basically based the sudden depressurization of solution from superheated state primary vacuum through a nozzle. immediate dissolved micro droplets results in release or nanoparticles. As first step, experimental data recrystallization were collected for different energetic by varying su...

2013
Basanta Pathak

Theoretical analysis and Computer simulations have proven to be cost-effective and powerful tools in scientific studies of materials, particularly at nano-scale where synthesis of nano-structures, interpretation of their observed character and exploration of new structures are not always straight forward. We present here fundamental principles of techniques used today for computational simulati...

2016
Chokkalingam Anand Yudai Yamaguchi Zhendong Liu Sayoko Ibe Shanmugam P. Elangovan Toshihiro Ishii Tsuyoshi Ishikawa Akira Endo Tatsuya Okubo Toru Wakihara

Top-down approach has been viewed as an efficient and straightforward method to prepare nanosized zeolites. Yet, the mechanical breaking of zeolite causes amorphization, which usually requires a post-milling recrystallization to obtain fully crystalline nanoparticles. Herein we present a facile methodology to prepare zeolite nanocrystals, where milling and recrystallization can be performed in ...

2015
Jeremiah P. Tidey Alice E. O’Connor Alexander Markevich Elena Bichoutskaia Joseph J. P. Cavan Geoffrey A. Lawrance Henry L. S. Wong Jonathan McMaster Martin Schröder Alexander J. Blake

Recrystallization of [PdCl2([9]aneS2O)] ([9]aneS2O = 1-oxa-4,7-dithiacyclononane), 1, and [PtCl2([9]aneS2O)], 2, by diffusion of Et2O vapor into solutions of the complexes in MeNO2 yielded three phases of 1 and two phases of 2. The known phase of 1, herein designated α-1, was obtained under ambient conditions. A second phase, designated β-1, was initially also obtained by this method; however, ...

2014
A. Suslova O. El-Atwani D. Sagapuram S. S. Harilal A. Hassanein

Tungsten has been chosen as the main candidate for plasma facing components (PFCs) due to its superior properties under extreme operating conditions in future nuclear fusion reactors such as ITER. One of the serious issues for PFCs is the high heat load during transient events such as ELMs and disruption in the reactor. Recrystallization and grain size growth in PFC materials caused by transien...

2016
Rongmei Niu Ke Han Yi-feng Su Tiglet Besara Theo M. Siegrist Xiaowei Zuo

High density grain boundaries provide high strength, but may introduce undesirable features, such as high Fermi levels and instability. We investigated the kinetics of recovery and recrystallization of Cu that was manufactured to include both nanotwins (NT) and high-angle columnar boundaries. We used the isothermal Johnson-Mehl-Avrami-Kolmogorov (JMAK) model to estimate activation energy values...

2014
F X Lin

The formation of a recrystallization texture is closely related to the nucleation and growth of recrystallizing grains, which may vary from grain to grain. Cube texture is a commonly observed recrystallization texture in face centered cubic metals of medium to high stacking fault energy after heavy cold-rolling and annealing. In this work, recrystallization of pure copper cold-rolled to a von M...

2009
Matt Elsey Selim Esedoḡlu Peter Smereka

A new numerical approach for the efficient computation of grain boundary motion is used to simulate normal grain growth and recrystallization in three dimensions with high accuracy. The method is based on the diffusion of signed distance functions and shares similarities with level set methods. The Herring angle condition at junctions and topological transitions are naturally captured with this...

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