Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Yoichi Takato"'
1
Numerical analysis of glass edge chipping by impact loading
Autor: Sayako Hirobe, Yosuke Sato, Yoichi Takato, Kenji Oguni
This study presents numerical analyses for edge chipping by impact loading. As a numerical analysis method, we extend Particle Discretization Scheme Finite Element Method (PDS-FEM) developed by the authors to be able to simulate fracture due to impac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86572f2ec9e5ed215b1c283b2b1e1329
https://doi.org/10.21203/rs.3.rs-2585433/v1
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4
Structural origins of the Mixed Alkali Effect in Alkali Aluminosilicate Glasses: Molecular Dynamics Study and its Assessment
Autor: Federica Lodesani, Alfonso Pedone, Yoichi Takato, Maria Cristina Menziani, Shingo Urata, Hiroyuki Hijiya
Publikováno v: Scientific Reports, Vol 10, Iss 1, Pp 1-18 (2020)
Scientific Reports
The comprehension of the nonlinear effects provided by mixed alkali effect (MAE) in oxide glasses is useful to optimize glass compositions to achieve specific properties that depend on the mobility of ions, such as the chemical durability, glass tran
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9998f595b1873fb47acb4d4bca53f493
http://link.springer.com/article/10.1038/s41598-020-59875-7
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6
Exploring the crystallization path of lithium disilicate through metadynamics simulations
Autor: Maria Cristina Menziani, Federica Lodesani, Yoichi Takato, Alfonso Pedone, Francesco Tavanti, Shingo Urata, Kei Maeda
Publikováno v: Physical review materials (Online) 5 (2021): 075602-1–075602-9. doi:10.1103/PhysRevMaterials.5.075602
info:cnr-pdr/source/autori:Lodesani F.; Tavanti F.; Menziani M.C.; Maeda K.; Takato Y.; Urata S.; and Pedone A./titolo:Exploring the crystallization path of lithium disilicate through metadynamics simulations/doi:10.1103%2FPhysRevMaterials.5.075602/rivista:Physical review materials (Online)/anno:2021/pagina_da:075602-1/pagina_a:075602-9/intervallo_pagine:075602-1–075602-9/volume:5
Understanding the crystallization mechanism in silica-based materials is of paramount importance to comprehend geological phenomena and to design novel materials for a variety of technological and industrial applications. In this work, we show that m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a31d384ae566edf69c1eec3def2e682
https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.5.075602?ft=1
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7
Disclosing crystal nucleation mechanism in lithium disilicate glass through molecular dynamics simulations and free-energy calculations
Autor: Shingo Urata, Federica Lodesani, Alfonso Pedone, Kei Maeda, Maria Cristina Menziani, Yoichi Takato
Publikováno v: Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020)
Scientific Reports
Unraveling detailed mechanism of crystal nucleation from amorphous materials is challenging for both experimental and theoretical approaches. In this study, we have examined two methods to understand the initial stage of crystal precipitation from li
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a47606d316b990b901baae1f906baf9f
https://doi.org/10.1038/s41598-020-74764-9
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8
Structural origin of thermal shrinkage in soda-lime silicate glass below the glass transition temperature: A theoretical investigation by microsecond timescale molecular dynamics simulations
Autor: Teppei Murota, Shingo Urata, Kiyotaka Miura, Masahiro Shimizu, Yasuhiko Shimotsuma, Yuya Hamada, Koji Fujita, Yoichi Takato, Akio Koike
Publikováno v: The Journal of Chemical Physics. 155:044501
Microscopic dynamical features in the relaxation of glass structures are one of the most important unsolved problems in condensed matter physics. Although the structural relaxation processes in the vicinity of glass transition temperature are phenome
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3b128424fd4b307caf7a7c0162a04f2
https://doi.org/10.1063/5.0056464
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9
Higher Toughness of Metal-nanoparticle-implanted Sodalime Silicate Glass with Increased Ductility
Autor: Satoshi Miyasaka, Shingo Urata, Ryota Ando, Yasuo Hayashi, Madoka Ono, Haruhiko Yoshino, Yoichi Takato
Publikováno v: Scientific Reports
Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
In this report, we propose a novel framework for toughening brittle oxide glass originated from enhanced ductility by implanting a secondary material comprising different mechanical properties. To do so, copper-metal nanoparticles are implanted into
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb10cdcbb2f72baaa4f164abb6c4b111
http://europepmc.org/articles/PMC6817821
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10
Small nanoparticles, surface geometry and contact forces
Autor: Yoichi Takato, Surajit Sen, Michael E. Benson
In this molecular dynamics study, we examine the local surface geometric effects of the normal impact force between two approximately spherical nanoparticles that collide in a vacuum. Three types of surface geometries—(i) crystal facets, (ii) sharp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f45931101597d533bd97f199f13e815
https://europepmc.org/articles/PMC5897759/
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