Solution and Interface Structure and Dynamics in Geochemistry: Gateway to Link Elementary Processes to Mineral Nucleation and Growth

2021 ◽  
Author(s):  
Hsiu-Wen Wang ◽  
Ke Yuan ◽  
Nikhil Rampal ◽  
Andrew G. Stack
Keyword(s):  
Interface Structure ◽  
Nucleation And Growth ◽  
Elementary Processes ◽  
Structure And Dynamics

Interface Structure and Slip Transmission in TI-49AL-3NB

1991 ◽  
Vol 229 ◽  
Author(s):  
Daniel S. Schwartz ◽  
S. M. L. Sastry
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Interphase Boundary ◽  
Elevated Temperatures ◽  
Interface Structure ◽  
Nucleation And Growth ◽  
Slip Bands ◽  
Α Phase ◽  
Slip Transmission

AbstractTwo types of special grain boundaries were examined in Ti-49Al-3Nb deformed at elevated temperatures. The first can be described as a Σ=2 order-changing boundary. This boundary is faceted and results from the nucleation and growth of variants of the γ phase from the parent α phase. The second type of grain boundary is a γ/α2 interphase boundary, and transmission of slip through this type of boundary was examined. Slip transmission from γ into α2 did not produce distinct slip bands in α2,. Slip transmission from γ through α2, and into the next γ lamella was possible even when the next γ lamella was in an orientation rotated relative to the first γ lamella.

Self-Assembly of a Functionalized Alkylated Isophthalic Acid at the Au(111)/Electrolyte Interface: Structure and Dynamics

2009 ◽  
Vol 113 (27) ◽  
pp. 11567-11574 ◽  
Author(s):  
Nguyen T. M. Hai ◽  
Mark Van der Auweraer ◽  
Klaus Müllen ◽  
Steven De Feyter
Keyword(s):  
Self Assembly ◽  
Interface Structure ◽  
Isophthalic Acid ◽  
Structure And Dynamics ◽  
Electrolyte Interface

A molecular dynamics study of a liquid–liquid interface: structure and dynamics

2004 ◽  
Vol 224 (2) ◽  
pp. 221-230 ◽  
Author(s):  
Jörn B. Buhn ◽  
Philippe A. Bopp ◽  
Manfred J. Hampe
Keyword(s):  
Molecular Dynamics ◽  
Interface Structure ◽  
Liquid Interface ◽  
Structure And Dynamics

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Observations oh Nucleation and Growth of Voids in Nickel

1970 ◽  
Vol 28 ◽  
pp. 414-415
Author(s):  
J. L. Brimhall ◽  
H. E. Kissinger ◽  
B. Mastel
Keyword(s):  
High Purity ◽  
Growth Stage ◽  
Elevated Temperatures ◽  
Early Growth ◽  
Nucleation And Growth ◽  
Pure Nickel ◽  
Different Temperatures ◽  
Total Fluence ◽  
Neutron Exposure ◽  
Growth Of Voids

Some information on the size and density of voids that develop in several high purity metals and alloys during irradiation with neutrons at elevated temperatures has been reported as a function of irradiation parameters. An area of particular interest is the nucleation and early growth stage of voids. It is the purpose of this paper to describe the microstructure in high purity nickel after irradiation to a very low but constant neutron exposure at three different temperatures.Annealed specimens of 99-997% pure nickel in the form of foils 75μ thick were irradiated in a capsule to a total fluence of 2.2 × 1019 n/cm2 (E > 1.0 MeV). The capsule consisted of three temperature zones maintained by heaters and monitored by thermocouples at 350, 400, and 450°C, respectively. The temperature was automatically dropped to 60°C while the reactor was down.

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