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Online since: June 2004
Authors: Christian A. Zorman, Mehran Mehregany
Since epitaxial alignment of the film is not required, substrate materials other than single crystal Si, such as SiO2, Si3N4, and polysilicon thin films, can be used.
RIE is used in this process, but only to pattern the SiO2 into molds using standard recipes that are highly selective to the substrate materials.
Like the lift-off process, for each poly-SiC layer, the molding material always differs from the sacrificial materials so that each can be removed without damage to the other layers.
For multilayer devices, the molding and sacrificial layer materials are switched at each poly-SiC layer so that selective etchants can be used to remove the layers in a sequential manner.
Journal Title and Volume Number (to be inserted by the publisher) 5 SiC Nanoelectromechanical Systems Use of SiC in surface micromachining is not restricted to polycrystalline material.
Online since: March 2014
Authors: Humberto García, María Fernanda García-Aladín, Juan Manuel Mosquera, José Jaime García
In spite of the fact that the contribution of the shear in the deflection of beams made of traditional materials like steel is usually neglected, the shear contribution in beams made of fiber reinforced materials like guadua must be taken into account.
These differences suggest that the anisotropic elasticity theory of cylindrical materials such wood or guadua which can be analyzed as a set of small concentric bricks, each with rectilinear anisotropy, is only a first approximation in the modeling of biological materials.
Ramachandrarao, Bamboo - A functionally graded composite-correlation between microstructure and mechanical strength, Journal of materials science, 40 (2005) 5249-5253. [10] International standard ISO, ISO 22157-1 Bamboo - Determination of physical and mechanical properties - Part 1: Requeriments, International standard ISO ,Switzerland, 2004
[12] American Society for Testing and Materials ASTM, ASTM D 198 - 08 Standar Test Methods of Static Test of Lumber in Structural Sizes, American Society for Testing and Materials ASTM, Philadelphia, 2008
Construction and building materials, 31 (2012) 57 - 51. [17] S.
Online since: September 2020
Authors: Vladimir N. Baranov, Sergey Sidelnikov, Ekaterina Lopatina, Olga Yakivyuk, Roman Galiev, Nikolay Dovzhenko, Aleksey Startsev, Tamara Orelkina, Pavel Yurev, Denis Voroshilov
Langdon, Influence of grain size on the flow properties of an Al-Mg-Sc alloy over seven orders of magnitude of strain rate, Materials Science & Engineering.
Chattopadhyay, Development of a high temperature high strength Al alloy by addition of small amounts of Sc and Mg to 2219 alloy, Materials Science & Engineering.
Xiang, High strain rate superplasticity in an Al–Mg–Sc–Zr alloy processed via simple rolling, Materials Science & Engineering.
Advanced Materials Research. 922 (2014) 862-867
Key Engineering Materials. 746 (2017) 29-35
Online since: July 2020
Authors: Karen Yu. Shakhnazarov, E.I. Pryakhin
Materials and Methods Since there is currently no comprehensive classification of intermediate phases based on a single feature, the methodological basis of this work is as follows: 1.
Gudtsov, Review of theoretical studies and practical works on the definition of elastic limit, Journal of the Russian Metallurgical Society, Part 1, 3 (1914)375-414
Bochvar, Metal Science, Metallurgizdat, Moscow, 1956
Materials of the Symposium on Metallurgy and Metal Science dedicated to the 100th anniversary of the discovery of iron polymorphism by D.
Materials of the seminar on Metallurgy and Metal Science dedicated to the 100th anniversary of the discovery of iron polymorphism by D.
Online since: July 2014
Authors: Feng Bin Jing, Tian Min Guan, Li Sun, Qiang Cheng
Introduction According to the research, the real time of materials being processed which from raw materials into the plant to the finished products accounts for 5%~10% of the production cycle, however the time of warehouse and transport state accounts for 90%~95% [1].
It can reduce unnecessary materials transport, improve logistics efficiency and cut down logistics cost [3].
But in manufacturing, 20%~50% of the total operation cost is used by materials handing, so the saving of the cost of materials handing considered preferentially in the layout optimization design.
Beijing: science press, 2006
[3] L Qin, L Z Rong, A production workshop logistics facilities layout analysis and design. journal of modern manufacturing engineering, 2011(8):67-70
Online since: May 2016
Authors: Pathompong Puathawee, Pat Sooksaen
Ceramic refractories are materials which can be resistant to heat and can be exposed to different degrees of mechanical stress, corrosion from liquids and gases at high temperatures.
Different types of ceramic refractories can be synthesized according to the nature of the raw materials.
Acknowledgements The authors would like to acknowledge Silpakorn University Research and Development Institute (SURDI), Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University and Smooth International Co.
Special thanks also go to Advanced Materials and Nanotechnology undergraduate students from the department who involved in this work.
Journal of Hazardous Materials. 217– 218, 1–10
Online since: August 2016
Authors: Prafulla K. Jha, Ankur Pandya, Satyam Shinde
This is due to the fact that the electron effective mass increases slightly with the doping concentration of manganese in both the materials.
The manganese doping (x=0.01) reduces the magnitude of hot electron mobility in both the materials.
[9] P K Jha, H R Soni, Journal of Applied Physics 115 (2014), 023509 [10] A.
Katsnelson, Materials Today, 10(2007)20
Dietl, et al., Science 287 (2000)1019-1022
Online since: August 2019
Authors: Darminto Darminto, Mochammad Zainuri, Suminar Pratapa, Yoyok Cahyono, Novita Dwi Purnamasari
Analysis of Defects and Surface Roughness on the Hydrogenated Amorphous Silicon (a-Si:H) Intrinsic Thin Film for Solar Cells Yoyok Cahyono1,a,*, Novita Dwi Purnamasari1,b, Mochamad Zainuri1,c, Suminar Pratapa1,d and Darminto1,e 1Advanced Materials Research Group, Department of Physics, Faculty of Science, Institut Teknologi Sepuluh Nopember (ITS), Sukolilo, Surabaya, 60111, Indonesia a,*yoyok@physics.its.ac.id, bnovitas21196@gmail.com, cmochamadzainuri1964@gmail.com, dSuminar.pratapa@gmail.com, edarminto@physics.its.ac.id Keywords: a-Si:H, Energy band gap, Hydrogen dilution, RF-PECVD, Urbach energy.
Introduction The study of a-Si: H in the process of growth is still continuing, in the context of optimizing the performance of devices based on these materials.
The main objective is to develop thin layer materials that have higher conductivity and lower hydrogen content compared to a-Si:H [3].
It is believed that the exponential dependence of the photon energy may arise from random fluctuations structural disorder in amorphous materials.
Thomas, Optical absorption of the hydrogenated evaporated amorphous silicon, International Journal of the Physical Sciences, 5, 6 (2010) 675–682
Online since: November 2016
Authors: Tanja Pettersen, Bjørn Holmedal, Knut Marthinsen, Jesper Friis, Antonio Segatori, Kai Zhang
Characterization and Modelling of the Microstructure and Texture Evolution In AlMgSi-Extrusions Kai Zhang1, *, Knut Marthinsen1, Bjørn Holmedal1, Jesper Friis2, Tanja Pettersen2 and Antonio Segatori3 1Department of Materials Science and Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway 2SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway 3SAPA Technology, SE-61281 Finspång, Sweden Keywords: extrusion, AlMgSi, microstructure, modelling Abstract.
The framework then starts with the material flow simulation by FEM, and the HyperXtrude code is employed here.
The as-extruded material was essentially in the deformed state.
Segatori, Coupled FEM and Alamel-type Polycrystal Plasticity Modelling Applied to Extrusion of Aluminium Alloys, Materials Today: Proceedings, 2 (2015) 4898-4903
Sommitsch, Recrystallization behaviour of the nickel-based alloy 80 A during hot forming, Journal of Microscopy, 227 (2007) 267-274.
Online since: February 2011
Authors: Ali Nemati, Hamid Reza Rezaie, Raheleh Mohammad-Rahimi, M. Samadani
Samadani1 1Department of Metallurgical and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran 2 Science and Research Branch Islamic Azad University, Tehran, Iran 3 Department of Materials Science Engineering, Sharif University of Technology, Tehran, Iran ahrezaie@iust.ac.ir, brahelehmrahimi@yahoo.com, cnemati@sharif.edu Keywords: Al2O3, SiC, sol-gel, nanocomposite, TiO2, sintering.
Vickers hardness of the doped materials increased with density (see Table 1).
Li, American Society of Mechanical Engineers, vol. 44, Materials Division (Publication), (1993), p.101
Limin: Journal of the European Ceramic Society 77 (2000), p. 1853–1857
P.Roach, AIChE Journal 39, (1993), p.493–503