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Journal of Crystal Growth
IF
1.57
Papers
38023
Papers 37905
1 page of 3,791 pages (37.9k results)
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#1Margaret Stevens (Tufts University)H-Index: 1
#2Kevin Grossklaus (Tufts University)
Last.Thomas E. Vandervelde (Tufts University)H-Index: 14
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Abstract GaAs1-xBix was grown on GaAs and InGaAs underlayers to determine the effect of global strain on bismuth (Bi) incorporation. Reducing compressive strain aids in Bi incorporation and results in higher Bi content films by preventing Ga-Bi surface droplet formation. A maximum Bi fraction of x=0.088 was achieved in a 100 nm film on an In0.105GaAs buffer layer, a 24% relative improvement compared to layers grown on GaAs. Increasing Bi flux further did not result in incorporations past x=0.088...
#1Yumin Wang (NPU: Northwestern Polytechnical University)
#2Shuangming Li (NPU: Northwestern Polytechnical University)H-Index: 6
Last.Hui Xing (NPU: Northwestern Polytechnical University)H-Index: 7
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Abstract Step-increasing directional solidification experiments are used to reveal the microstructural evolution of the degenerate pattern in Al-4.5 wt% Cu. It is found that the degenerate pattern could remain stable for abrupt growth velocity increases from 15 µm/s to 100 µm/s and the texture dimensionless intensity of the degenerate structure remains unchanged. A strong dependence of the tip-splitting spacing (λ) and frequency (ƒ) of the degenerate pattern on growth velocity was observed and f...
#1Wenjia Su (Jiangsu University)H-Index: 2
#2Chen Li (Jiangsu University)
Last.Junfeng Wang (Jiangsu University)
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Abstract In order to study the mechanisms of gas flow and impurity transport in an industrial directional solidification furnace for producing multi-crystalline silicon (mc-Si), a 3D global modeling, including argon flow, thermal conduction, thermal radiation, chemical reaction, and mass transfer was established. Simulation results show that the backflow at crucible outlet near the midcourt plane is mainly attributed to buoyancy, which will induce SiO and CO impurities accumulation and affect th...
#1Yuan Xuan (PSU: Pennsylvania State University)H-Index: 8
#2Abhishek Jain (PSU: Pennsylvania State University)H-Index: 6
Last.Leonard RosenbaumH-Index: 1
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Abstract We present a multi-scale computational approach to model the gas-phase chemical kinetics for Metal-Organic Chemical Vapor Deposition (MOCVD) of WSe2 using W(CO)6 and H2Se as gas-phase precursors. This framework combines Quantum Mechanical (QM) methods based on Density Functional Theory (DFT), ReaxFF-based reactive molecular dynamics, and Computational Fluid Dynamics (CFD) to efficiently model the gas-phase physiochemical processes leading to WSe2 growth in a cold-wall horizontal MOCVD c...
#1M MastariH-Index: 1
#2M. J. CharlesH-Index: 65
Last.Jean-Michel HartmannH-Index: 8
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Abstract In this paper, we have evaluated the impact of the nano-template used for the nano-heteroepitaxy of SiGe layers in a 300 mm industrial Reduced Pressure-Chemical Vapour Deposition tool. A process flow based on diblock copolymer patterning was used to fabricate honeycombed nanometer-sized templates. Various integration schemes were designed in order to measure the impact of pitch, the presence (or not) of the nano-template during coalescence and the nature of the masking dielectrics itsel...
#2V. Cherepanova (NSTU: Novosibirsk State Technical University)
Last.V. Manolov (BAS: Bulgarian Academy of Sciences)
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Abstract The authors propose a model of heterogeneous nucleation and macroscopic growth of the solid phase on wettable refractory cubic nanoparticles. A numerical study of the crystallization process of a binary alloy with a phase diagram of the eutectic type modified by nanoparticles of titanium nitride are carried out. Within the proposed model, new expressions are obtained for the free energy and the nucleation rate of crystallization centers on cubic ultrafine seeds, taking into account the ...
Abstract The authors consider cooling process of a “gray cast iron–austenitic stainless steel” bimetallic casting in the lost foam casting conditions. They provide a mathematical model of coupled heat transfer between the molten gray cast iron, stainless steel, nonstick coating and dry quartz sand during the process of bimetallic casting cooling, taking into account phase transitions in gray cast iron and quartz sand. The article shares calculated data on casting crystallization time and a solid...
#1Botao Liu (WHU: Wuhan University)
#2Yue Yu (WHU: Wuhan University)
Last.Bing Gao (WHU: Wuhan University)
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Abstract The interface instability in large-size silicon carbide solution growth has been investigated with a focus on the influence of silicon solution convection. Indications have shown that solution convection produces a substantial effect on the instability of the growth interface. As the SiC size increases, the instability becomes more evident. Therefore, improved solution convection is required for growing large-sized silicon carbide ingots by the solution method.
#1Aneta Wardak (PAN: Polish Academy of Sciences)H-Index: 1
#2M. Szot (PAN: Polish Academy of Sciences)H-Index: 7
Last.A. Mycielski (PAN: Polish Academy of Sciences)H-Index: 14
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Abstract (Cd,Mn)Te and (Cd,Mg)Te bulk crystals are among the materials which have recently attracted attention in the field of room-temperature nuclear detector applications, where uniform semi-insulating (>109 Ωcm) crystals with superior quality and homogenous distribution of internal electric field are required. We discuss crystals obtained using the low-pressure Bridgman method. The electric field distribution within the doped as-grown (Cd,Mn)Te and (Cd,Mg)Te crystals and its relationship wit...
#1Duc Duy Le (CNU: Chungnam National University)H-Index: 1
#2Trong Si Ngo (CNU: Chungnam National University)H-Index: 1
Last.Soon-Ku Hong (CNU: Chungnam National University)H-Index: 18
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Abstract Investigation on annealing of Bi2Te3 layers grown on (0001) sapphire substrates were carried out. An impressive restructuring process of the Bi2Te3 films (∼ 50-nm thickness) was in situ observed during the annealing process. Starting with very rough and rotated poly crystal Bi2Te3, by the annealing, there were a transformation from the poly crystal structures to a hexagonal structure and also a significantly surface flattening throughout the Bi2Te3 film. Furthermore, by applying the ann...
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