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Online since: March 2025
Authors: Raphael Oliveira Pires de Lima, João Assis, Adriana M. Gama, Mauro H. Lapena, Vinicius André Rodrigues Henriques
Grain growth can be observed at higher sintering temperatures.
Microstructural varieties numbered 1 to 3 represent regions where EDS analyses were performed.
Online since: March 2013
Authors: A.N. Fadzilah, Mohamad Rusop Mahmood, Dayana Kamaruzaman
The G-peak appears from the Raman allowing the E2g mode and the D-peak results from grain boundary effect [9].
For I doped samples, D-peak position starts from 1349 cm-1 at 500oC and moves slightly to the higher wave number up to 1360 cm-1 at 650oC.
Online since: May 2020
Authors: Peter Košťál, Róbert Hrušecký, Ivan Molnár, Dávid Michal
There are a number of materials for this technology with different attribute like PLA, ABS, PCABS and next special materials like PCL, PLGA etc. [3, 4, 5].
Selective Laser Sintering (SLS) uses a laser to harden and bond small grains of nylon and elastomer materials into layers in a 3D dimensional structure.
Online since: February 2019
Authors: Leonid Levkov, Dmitry Shurygin, Mikhail Kisselman
Experimental Control of physico-chemical and thermophysical processes in ESR provides new opportunities for billet manufacturing in machine engineering industry which are revealed through the number of examples to follow.
Ferrite grain score of cast metal is 7-10 by GOST 5639 scale, it is as good as the requirements set to the deformed metal whilst the ductile-to-brittle transition temperature Т50 of ESR metal is lower by 30-400С.
Online since: October 2014
Authors: Carlien Taute, Heinrich Möller
To prepare the samples for this examination, they were polished and etched with Barker’s anodizing solution, 2% HBF4 (Tetra-fluoro boric acid) solution, which highlights the grain boundaries.
It has been shown before that the β″ precipitates, with natural pre-ageing, are not as fine and have a lower number density than those of the directly artificially aged material [13].
Online since: September 2015
Authors: Victor Taranenko, Antoni Świć, Marek Opielak, Arkadiusz Gola
Layer thickness is understood as the thickness of the machined chip of the material, dependent on the parameters of the infinite set of microchips removed by the elementary grains of the grinding wheel at the current moment.
In a number of cases, with a degree of accuracy sufficient for practical engineering calculations of relations approximating the operator transmittances (18), it is to the point to use the first term of the expansion of function into a Pade series: .
Online since: November 2015
Authors: J. Madhavan, J. Theerthagiri, R.A. Senthil
The Cd50Zn50S appears as tightly packed surface morphology and aggregated particle composed of a large number of irregular shaped smaller grains.
Online since: September 2008
Authors: Maurizio Fermeglia, Sabrina Pricl, Giovanni Maria Pavan, Giulio Scocchi, Jan Willem Handgraaf, Anastasia Malek, Johannes G.E.M. Fraaije, Carlo V. Catapano, Andrea Danani, Marek Maly, Paola Posocco
Atomistic models of poly(amidoamine) (PAMAM) dendrimers up to generation 6 were built and, after adding the suitable number of counterions and water molecules, the ionic strength was adjusted and each global system geometry was optimized using the Sander modulus of Amber 9.0 [7].
DDFT provides a general framework to calculate the dynamics of mesoscale pattern formation, on a coarse-grained scale 10-9 m to 10-6 m, in a variety of polymer liquids, including charged systems and systems containing hard particles such as colloids or surfaces.
Online since: December 2009
Authors: Roland Grössinger, Reiko Sato Turtelli, Joan Josep Suñol, B. Hernando, M.L. Sánchez, José Luis Sánchez Llamazares, J.D. Santos, T. Sánchez, M.J. Perez
These Heusler alloys show a fast crystallization kinetic and the ribbons produced (even at high speeds of the rotating copper wheel) show a microstructure composed by micronic columnar grains with their longer axis aligned perpendicular to ribbon plane [2].
In order to determine the average elemental composition an appreciable number of ribbon flakes were examined.
Online since: May 2011
Authors: Bing Du, Yan Li Jiao, Yan Jie Li, Guan Xiu Yin, Gong Ming Yang
Table 2 the ration of different materials Banana peel-starch Bulk density[g/ml] Brightness index L* Sensory evaluation 1:9 0.077±0.001a 54.31±0.02 a The flavor of grain 2:8 0.085±0.002b 48.77±0.03 b A great degree of the extrusion; dark colour 3:7 0.109±0.001c 42.45±0.07 c Hard; brown colour Table 3 experimental results Experimental sequence number Factors A B C D Bulk density [g/ml] 1 1 1 1 1 0.158 2 1 2 2 2 0.079 3 1 3 3 3 0.117 4 2 1 2 3 0.097 5 2 2 3 1 0.072 6 2 3 1 2 0.278 7 3 1 3 2 0.096 8 3 2 1 3 0.087 9 3 3 2 1 0.208 K1 0.118 0.117 0.174 0.146 K2 0.149 0.079 0.128 0.151 K3 0.130 0.201 0.095 0.100 R 0.031 0.122 0.079 0.051 Table 4 the analysis of variance Resources of variance S f V F value Critical value significant A 0.001 2 0.0005 1.000 F0.1=9 B 0.023 2 0.0115 23.000 F0.05=19 ** C 0.010 2 0.005 10.000 * D 0.005 2 0.0025 5.000 Err 0.001 2 0.0005 Total 0.04 10 The parameter obtained from experimental results using experimental design based on Orthogonal test
Showing 27551 to 27560 of 28673 items