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Online since: June 2012
Authors: Xiao Guo Bi, Xu Dong Liu, Wei Niu
However, due to the occurrence of low-angle grain boundaries and reduction atmosphere used, the grown crystals were opaque and shown dark-blue colors; long-term annealing or metallic ion doping were required to restore the transparent and the intrinsic pale-yellow color of rutile single crystals.
Table 1 Chamber dimension of three kinds of furnace Furnace number F1 F2 F3 Top diameter(mm) 70 70 70 Bottom diameter(mm) 120 120 120 Height(mm) 300 400 500 Results and Discussions The effects of hydro-oxy ratio and growth rate on crystal growth.
Online since: June 2012
Authors: Gustavo Mendoza-Chavez, Luis Horacio Martínez-Mártinez, David Joaquin Delgado-Hernandez, David De León Escobedo, Elia Mercedes Alonso Guzmán, Wilfrido Martínez Molina, Eleazar Arreygue-Rocha, Hugo Luis Chávez-García, Juan Carlos Arteaga-Arcos
In addition, the diameter shall be at least 10 or 20 times the largest grain in the rock microstructure.
Acknowledgments Authors acknowledge to PROMEP-SEP as well as the Autonomous University of the State of Mexico (UAEMex) the support received to conduct this work throughout projects number FE026/2011(103.5/11/3605) and 2954/2010 REDES respectively.
Online since: January 2010
Authors: Ion N. Mihailescu, Adele Carradò, Hervé Pelletier, Jacques Faerber, Gilles Versini
Sample Al2O3 HA Substrate Stainless steel, 304L Ti700.nm /TiN80.nm /Si(100) Fluency [J/cm 2 ] 1.5 2.5 Dynamical pressure [Pa] 1 Pa with O2 10 sccm 50 Pa H2O vapours Distance target-substrate [mm] 40 Coating thickness [µm] 1.2 0.5 Pulse repetition rate [Hz] 10 2 Number of pulses 180000 30000 Substrate temperature [°C] 200 400 Table 1.
Some grain-like particles and droplets were observed on the surface of the film, characteristic to PLD coatings.
Online since: January 2010
Authors: Menachem Bamberger, Michael Hofmann, Leopold Meier, S. Cusenza, D. Höche, Yogev Amran, K. Weiss, Hartmut Hoffmann, Peter Schaaf
Since the cross-effects of the single phases and the influence of grain size and micro stress on the magnetic and electrical properties are not fully understood yet, further research is required to explain these open issues.
Off-Highway & Powerplant Congress and Exposition, Milwaukee, Wisconsin, USA, SAE Paper Number 2000-01-2563 (2000) [5] B.V.
Online since: May 2011
Authors: Bi Yu Tang, Ping Ying Tang, Meng Xue Zeng, Dong Lin Li, Wen Jiang Ding, Li Ming Peng
.%) alloy are due to the hcp (2H)-Mg fine grain matrix of 100–200 nm, a novel long-period stacking ordered (LPSO) phase and homogeneously dispersed Mg24Y5 fine particles of less than 10 nm [8–10].
In this work, average cohesive energy per atom for Mg97Zn1Y2 ternary alloy was calculated using the following expression [36]: (1) where Etot is the electronic total energy of unit cell of 24R-type LPSO, x , y and z also are the number of Mg, Y and Zn atoms in unit cell of 24R-type LPSO, , and are the electronic total energies of single Mg, Y and Zn atom in freedom states.
Online since: June 2012
Authors: Yue Sheng Gu, Yan Li Zhu, Wei Zeng Gao
There emerge a number of MES software and corresponding solutions in recent years.
Tooling and business component layer provides fine-grained support for non-splittable business actives.
Online since: December 2011
Authors: Yong Qiang Shi, Sha Sha Wang, Wei Min Wang, Ya Zhang
These one-class classifiers learn a model of normality from a training set of normal examples, and identify patterns that fall outside that class as abnormal, in comparison with multi-class classifiers, which require approximately equal numbers of examples for each class.
It is the crucial problem of the condition-based maintenance/prognostic health management system and presents major challenges to system designer primarily because it entails large-grain uncertainty.
Online since: July 2011
Authors: Helmut Clemens, Peter Staron, Andreas Schreyer, Martin Stockinger, Ulrike Cihak
A large number of dislocations are frozen during quenching, acting as potential nucleation sites for the strengthening precipitates that are formed in the subsequent annealing treatment.
The large deformation together with forging below the d-phase solvus temperature leads to a homogeneous microstructure with a mean grain size of 5 µm [10].
Online since: July 2006
Authors: Dun Wen Zuo, Duo Sheng Li, Li Gang Zhao, Rong Fa Chen, Bing Kun Xiang
Color of diamond film is bright and shallow white, and surface is smooth and there are symmetrical and shine grain.
Density of plasma embodied number of activity group of plasma, the more density of plasma, the more activity group of plasma, and the more growth velocity of diamond film.
Online since: January 2010
Authors: M.C.S. Ribeiro, L.F.P. Juvandes, J.D. Rodrigues, António Torres Marques, Antonio Ferreira
Four types of mortar materials were batched hereinafter designated as CM-0, PM-0, PM-I and PM-II, where CM and PM stand for, respectively, cement and polymer mortars, and the subsequent number denotes the content, in weight percentage, of glass fibre reinforcement.
The mineral aggregate used was a siliceous foundry sand, with a rather uniform grain size and a mean diameter (d50) of 342 µm.
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