TAILIEUCHUNG - The diffusion in FCC binary interstitial alloy

We build the theory of diffusion for FCC binary interstitial alloy under pressure based on the statistical moment method, where there are the analytic expressions of the jumping frequency of interstitial atom, the effective jumping length, the correlation factor, the diffusion coefficient, and the activated energy. In limit cases, we can obtain the diffusion theory for FCC metal A under pressure. | HNUE JOURNAL OF SCIENCE DOI Natural Sciences 2020 Volume 65 Issue 10 pp. 18-23 This paper is available online at http THE DIFFUSION IN FCC BINARY INTERSTITIAL ALLOY Nguyen Quang Hoc1 Pham Thi Thanh Loan2 Nguyen Tuan Viet3 and Nguyen Ngoc Le4 1 Faculty of Physics Hanoi National University of Education 2 My Dinh 1 Secondary School Hanoi 3Kieu Phu Secondary School Hanoi 4 K67 Student of the Faculty of Physics Hanoi National University of Education Abstract. We build the theory of diffusion for FCC binary interstitial alloy under pressure based on the statistical moment method where there are the analytic expressions of the jumping frequency of interstitial atom the effective jumping length the correlation factor the diffusion coefficient and the activated energy. In limit cases we can obtain the diffusion theory for FCC metal A under pressure. Keywords binary interstitial alloy jumping frequency effective jumping length correlation factor diffusion coefficient activated energy statistical moment method. 1. Introduction Study on the diffusion of metals and interstitial alloys pays attention to many researchers 1-10 . The phenomenon of the diffusion of atoms in a crystal is one of the very important problems of solid state physics and material science 1-7 . For alloys in general and interstitial alloys in particular there are two basic mechanisms of diffusion. This is the substitutional mechanism and the interstitial mechanism. The mechanisms of diffusion depend on every material and doped impurity. In studying the process of diffusion the most important parameters are the activated energy and the diffusion coefficient. Determining the diffusion coefficient of atoms in a crystal is a very complex problem because processes of diffusion depend on many different conditions. In order to obtain exact results of the diffusion coefficient theoretically it is necessary to solve some basic problems such as the theory of atomic .

• Xã hội học
• binary interstitial alloy
• Jumping frequency
• Effective jumping length
• Correlation factor
• Diffusion coefficient
• Activated energy
• Statistical moment method
• Interstitial atom
• Mathematical sciences
• Physical sciences
• Interstitial alloy
• Nonlinear deformation
• Density of deformation energy
• Maximum real stress
• Limit of elastic deformation
• Ternary interstitial alloy
• Young modulus
• Bulk modulus
• Rigidity modulus
• Elastic constant
• Interstitial and substitutional alloy
• Binary and ternary alloys
• Nonlinear deformation
• Communications in Physics
• Investigation of thermodynamic properties
• Metal thin film
• The statistical moment method
• The power moments
• Semiconductor superlattice
• Moment method
• Statistical dynamics
• Oxygen vacancy diffusion
• Yttria doped ceria
• Vacancy activation energies
• YSZ systems
• Investigation of thermodynamic quantities
• Thermodynamic quantities
• Cubic zirconia
• Coefficients of thermal expansion
• Thermal expansion
• Face centered cubic structure
• Helmholtz free energy
• Thin film
• Lattice constant
• Mathematical and physical
• The moment method in statistical
• Lattice constant of CeO2
• Natural sciences
• High pressure
• Oxide superlattice
• Analytic expression
• Electronic industry
• Lindemann criterion
• High pressure melting curves
• Elastic moduli
• Yttria doped ceria crystal
• Investigation of lattice constants
• Applications of q deformed Fermi Dirac statistics
• Statistical moment
• Thermodynamic properties
• Magnetic properties
• Metallic thin films
• Tạp chí khoa học
• Khoa học tự nhiên
• Melting Temperature of Iron
• Self consistent field method
• Molecular cryocrystal
• Face centered cubic
• Mathematical science
• Physical science
• Anharmonic approximations
• The melting temperature of agce alloy
• Rare earth alloys
• Ag containing in the alloys
• The melting temperatures
• Thermodynamic properties of free standing thin metal films
• Temperature and pressure dependences
• The moment method in the statistical dynamics
• Fcc metal thin films
• Gibbs thermodynamic potential
• Structural phase transition temperature
• Atomistic dynamics
• Electrical property
• Yttria stabilized zirconia
• Buckingham potential
• Substitution and interstitial alloy
• Concentration of equilibrium vacancies
• Body centered cubic
• Equilibrium vacancies
• Absolute stability of the crystalline state
• Interstitial alloys FeH
• Body centred cubic structure
• Substitutional alloy
• Equilibrium vacancy concentration
• Absolute stability for crystalline state
• BCC structure
• The thermal expansion coefficient
• The heat capacities
• Tạp chí khóa học
• Limiting temperature
• Absolute stability
• Structural transition temperature
• Rare earth metals
• Previous experiments