نتایج جستجو برای: coalescence interdiffusion

تعداد نتایج: 6577  

Journal: :JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 1970

Journal: :Physical review. B, Condensed matter 1996
Colino Schuller Korenivski Rao

We have performed magnetotransport, magnetization, and structural experiments on sputtered Fe~30 Å!/Cr~12 Å! ~110! superlattices that were annealed at temperatures up to 400 °C. Interestingly, their giant magnetoresistance (Dr) is enhanced at intermediate temperatures, and strongly decreased at higher temperatures. If normalized to the antiferromagnetic coupling fraction of sample, the magnetor...

2004
D. Zhi M. Wei D. W. Pashley

In order to fabricate an effective device structure based on InAs quantum dots (QDs), the QD layers must be encapsulated within a matrix that has a wider band gap. This encapsulation is usually achieved by the overgrowth of GaAs. Coherent strained InAs/GaAs islands, which were previously formed on the (0 0 1) GaAs substrate surface, can then be buried in the semiconductor matrix to form QDs. Th...

2013
Andreas MEYER Florian KARGL

Despite its tremendous importance for the understanding of underlying mechanisms and for the input in modeling and simulation of processes alike, accurate experimental diffusion data in liquid metals and alloys are rare. Common techniques exhibit several drawbacks that in most cases prevent an accurate measurement of diffusion coefficients convective contributions during diffusion annealing are...

2006
Guangrui Xia

As complementary metal-oxide-semiconductor field-effect transistors (MOSFETs) scale, strained Si and SiGe technology have received more attention as a means of enhancing performance via improved carrier mobility. One of the biggest challenges for strained Si and SiGe technology is Si-Ge interdiffusion during thermal processing. Two different aspects of Si-Ge interdiffusion are explored in this ...

2003
G. P. Srivastava

Ab initio calculations, based on norm-conserving pseudopotentials and density functional theory, have been performed to investigate the displacive Sb adsorption on the Si(0 0 1) surface with the (2 1) reconstruction. For the onemonolayer coverage of Sb, even though the formation of a pure Sb–Sb dimer is energetically more favorable than the interdiffusion of Sb into any of the second and third ...

2012
Z. Essa C. Gaumer A. Pakfar M. Gros-Jean M. Juhel F. Panciera P. Boulenc C. Tavernier F. Cristiano

Related Articles Kinetics of interdiffusion in semiconductor ternary quantum dots Appl. Phys. Lett. 101, 141906 (2012) Thermally induced interface chemistry in Mo/B4C/Si/B4C multilayered films J. Appl. Phys. 112, 054317 (2012) Probing the buried C60/Au(111) interface with atoms J. Chem. Phys. 136, 214706 (2012) Enhancement of perpendicular magnetic anisotropy through reduction of Co-Pt interdif...

2010
Renyu Chen Scott T. Dunham

Point-defect-mediated diffusion processes are investigated in strained SiGe alloys using kinetic lattice Monte Carlo KLMC simulation technique. The KLMC simulator incorporates an augmented lattice domain and includes defect structures, atomistic hopping mechanisms, and the stress dependence of transition rates obtained from density functional theory calculation results. Vacancy-mediated interdi...

2010
James Hart

The operational parameters of the automated Spray-LbL technique for thin film deposition have been investigated in order to-identify their effects on film thickness and roughness. We use the automated Spray-LbL system developed at MIT by the Hammond lab to build 25 bilayer films of poly (ally amine hydrochloride) (PAH) and poly (acrylic acid) (PAA). Each of the 10 operational parameters of this...

Journal: :علوم کاربردی و محاسباتی در مکانیک 0
اسماعیل لکزیان سیما شعبانی

condensing flows in nozzles and fixed blades of steam turbine have always been the subject of many studies.in such flows, existence of liquid phase in vapor changes the nature of the flow. the major of changes are due to four main mechanisms included nucleation, droplet growth, coalescence and breakage of droplets. in this paper,the effects of coalescence process between droplets have been inve...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید