Results 31 to 40 of about 423,030 (300)

Grain boundary roughening transitions [PDF]

EPL (Europhysics Letters), 2009
We consider the roughening of small angle grain boundaries consisting of arrays of dislocations and found two transitions, corresponding to fluctuations of the dislocations along and perpendicular to the boundaries. The latter contributes to a large scale fluctuation of the orientation of the crystal but the former does not. The transition temperatures
openaire   +2 more sources

Helium bubble formation in ultrafine and nanocrystalline tungsten under different extreme conditions [PDF]

, 2015
We have investigated the effects of helium ion irradiation energy and sample temperature on the performance of grain boundaries as helium sinks in ultrafine grained and nanocrystalline tungsten.
A. Hassanein, Allain, Amano, Bai, Baldwin, Balluffi, Caspers, Dausinger, Debelle, Delafond, Efe, El-Atwani, El-Atwani, Eleveld, Evans, Federici, Fichtner, Finnis, G. Greaves, Hattar, Hattar, Iwakiri, J.A. Hinks, Jung, K. Hattar, Kajita, Kajita, Lee, Lipschultz, Minyou, Niwase, O. El-Atwani, Olieviero, Oliviero, S.S. Harilal, Samaras, Scott, Sefta, Shen, Shu, Singh, Singh, Sun, Trinkaus, Ullmaier, Wagner, Wei, Wei, Ziegler   +48 more
core   +1 more source

Quantification of the Existence Ratio of Non-Adhesion Grain Boundaries and Factors Governing the Strength of Coke Containing Low-Quality Coal

Journal of Thermal Science and Technology, 2012
“Non-adhesion grain boundaries” are formed when low-quality coal grains do not adhere to other grains in the carbonization process because of the low dilation of coke.
Tetsuya KANAI, Yoshiaki YAMAZAKI, Xiaoqing ZHANG, Ataru UCHIDA, Yasuhiro SAITO, Masakazu SHOJI, Hideyuki AOKI, Seiji NOMURA, Yukihiro KUBOTA, Hideyuki HAYASHIZAKI, Shigeto MIYASHITA   +10 more
doaj   +1 more source

High Total Proton Conductivity in Large-Grained Yttrium-Doped Barium Zirconate [PDF]

, 2009
Barium zirconate has attracted particular attention among candidate proton conducting electrolyte materials for fuel cells and other electrochemical applications because of its chemical stability, mechanical robustness, and high bulk proton conductivity.
Haile, Sossina M., Hernandez-Sanchez, Raul, Yamazaki, Yoshihiro   +2 more
core   +1 more source

Barrier effect of grain boundaries on the avalanche propagation of polycrystalline plasticity

, 2016
To investigate the barrier effect of grain boundaries on the propagation of avalanche-like plasticity at the atomic-scale, we perform three-dimensional molecular dynamics simulations by using simplified polycrystal models including symmetric-tilt grain ...
Niiyama, Tomoaki, Shimokawa, Tomotsugu
core   +1 more source

Effect of solution treatment on grain boundary structure of Inconel 617 alloy bar

Cailiao gongcheng
The grain-boundary microstructure of Inconel 617 alloy hot-rolled rods during cold drawing and subsequent solution treatment is investigated using the electron backscattering diffraction （EBSD） technique. The results reveal that the microstructure of the
LU Jun, YANG Chunlei, SHEN Haijun, WANG Zixing   +3 more
doaj   +1 more source

Effect of grain boundary character on nucleation of intergranular fatigue cracks in SUS430 ferritic stainless steel

Nihon Kikai Gakkai ronbunshu, 2017
The effect of grain boundary character and grain boundary geometrical configuration on nucleation of intergranular fatigue crack in SUS430 ferritic stainless steel was quantitatively investigated to reveal the elementary process of high cycle fatigue ...
Weitao YANG, Shigeaki KOBAYASHI, Sakae SAITO   +2 more
doaj   +1 more source

Fabrication and Characterization of Controllable Grain Boundary Arrays in Solution Processed Small Molecule Organic Semiconductor Films

, 2012
We have produced solution-processed thin films of 6,13-bis(triisopropyl-silylethynyl) pentacene with grain sizes from a few micrometers up to millimeter scale by lateral crystallization from a rectangular stylus.
Anthony, John E., Headrick, Randall L., Wo, Songtao   +2 more
core   +1 more source

Control and Characterization of Individual Grains and Grain Boundaries in Graphene Grown by Chemical Vapor Deposition [PDF]

, 2011
The strong interest in graphene has motivated the scalable production of high quality graphene and graphene devices. Since large-scale graphene films synthesized to date are typically polycrystalline, it is important to characterize and control grain ...
A Reina, AC Ferrari, AC Ferrari, AH Castro Neto, AK Geim, AK Geim, C Gackenheimer, CK Gan, CO Girit, CWJ Beenakker, D Eom, Deepak Pandey, Dongguang Wei, E McCann, Eric A. Stach, FV Tikhonenko, GM Rutter, Helin Cao, HL Cao, J Coraux, JD Plummer, Jifa Tian, Jiming Bao, K Kim, KS Kim, KV Emtsev, L Gao, LM Malard, Luis A. Jauregui, M Vanin, M Yamamoto, MY Huang, Nathan P. Guisinger, OV Yazyev, P Nemes-Incze, Peng Peng, PY Huang, Qingkai Yu, QK Yu, R Grantab, Robert Colby, S Bae, S Bhaviripudi, S Lee, S Neubeck, S Okada, Shin-Shem Pei, SV Morozov, T Nakajima, Ting Fung Chung, TMG Mohiuddin, W Wu, WA de Heer, Wei Wu, X Li, XS Li, XS Li, XS Li, XT Jia, Y Liu, Yong P. Chen, YW Son, Zhihong Liu, Zhihua Su   +63 more
core   +3 more sources

Study of the Effect of Grain-Boundary Misorientation on Slip Transfer in Magnesium Alloy Using a Misorientation Distribution Map

Crystals, 2022
The microstructure evolution of a Mg–Gd–Y alloy was studied using uniaxial tension combined with an electron backscatter diffraction technique. The results show that large amounts of slip transfer phenomena can be observed around the grain–boundary area ...
Jie Sun, Jianhua Liu, Qingqiang Chen, Laixiao Lu, Yanhua Zhao   +4 more
doaj   +1 more source