Zobrazeno 1 - 10
of 106
pro vyhledávání: '"A R Allnatt"'
Publikováno v:
Philosophical Magazine. 96:2969-2985
In this paper, a new, lighter, version of the highly accurate Moleko, Allnatt and Allnatt formalism for describing both tracer (self) and collective diffusion kinetics in multicomponent random alloys is presented. Verification of the resulting expres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::220ad1dc3cfe33dfe0861d51da9433fa
https://doi.org/10.1080/14786435.2016.1219785
https://doi.org/10.1080/14786435.2016.1219785
Publikováno v:
Philosophical Magazine. 94:2487-2504
In this paper, an extended version of the matrix method is derived in order to address diffusion kinetics for the full anisotropic three-dimensional h.c.p. structure. It is shown that the diffusion...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efdb670168d513666cd13d229a2c590a
https://doi.org/10.1080/14786435.2014.916426
https://doi.org/10.1080/14786435.2014.916426
Publikováno v:
Philosophical Magazine. 87:4169-4180
In strongly ionic insulating materials, the Nernst–Planck Equation relates the interdiffusion coefficient of the cations (having the same charge) with the corresponding tracer diffusivities and the thermodynamic factor. In this paper, we explore th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96f128a600faa7f1ca58346e1af43f81
https://doi.org/10.1080/14786430701531014
https://doi.org/10.1080/14786430701531014
Publikováno v:
Philosophical Magazine. 86:5837-5846
A simple and often used model of atom transport by the vacancy mechanism on two physically distinct interpenetrating sublattices assumes that each atom–vacancy exchange frequency depends only on the species of the atom and the sublattice from which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11f3bcb498cee458371b8e796bf235ac
https://doi.org/10.1080/14786430600835821
https://doi.org/10.1080/14786430600835821
Publikováno v:
Philosophical Magazine. 85:2787-2798
In this paper, we address a four-frequency diffusion model that allows diffusion of paired and unpaired atoms (or small molecular species) in an otherwise empty lattice. The model is useful for describing tracer and collective diffusion of interstiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2385ae6a10e98e12df591926ef016ad8
https://doi.org/10.1080/14786430500155296
https://doi.org/10.1080/14786430500155296
Publikováno v:
Journal of Physics: Condensed Matter. 14:6897-6907
In this study, collective and tracer diffusion kinetics is addressed for the ternary random alloy. A formal solution from the self-consistent theory of Moleko et al (Moleko L K, Allnatt A R and Allnatt E L 1989 Phil. Mag. A 59 141) is derived for col
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5042fe8b6382f16b6ac7175863da27c7
https://doi.org/10.1088/0953-8984/14/28/301
https://doi.org/10.1088/0953-8984/14/28/301
Autor:
A R Allnatt
Publikováno v:
Journal of Physics A: Mathematical and General. 34:7441-7458
Statistical mechanical expressions are derived for atom-vacancy exchange frequencies in a crystalline insulator with a gradient of temperature and for the heat flux associated with such exchanges in an isothermal system. The associated Onsager recipr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abe90b085e4100d3c183a92bb13501cf
https://doi.org/10.1088/0305-4470/34/37/302
https://doi.org/10.1088/0305-4470/34/37/302
Publikováno v:
Journal of Physics: Condensed Matter. 10:5295-5308
Approximate expressions are derived for the phenomenological coefficients for vacancy-mechanism matter transport in a nearest-neighbour interaction lattice gas model of a concentrated binary alloy using the Kikuchi-Sato jump frequency model. These ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6deec05d7f3b15d7f54f649a5eda3885
https://doi.org/10.1088/0953-8984/10/24/008
https://doi.org/10.1088/0953-8984/10/24/008
Publikováno v:
Canadian Journal of Chemistry. 76:1548-1553
The time correlation functions associated with the Onsager phenomenological coefficients for isothermal matter transport have been calculated by Monte Carlo simulation for a binary system (A,B) at the equiatomic composition according to the Kikuchi-S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d353b4f2305dea360e84cd69b02767f
https://doi.org/10.1139/cjc-76-11-1548
https://doi.org/10.1139/cjc-76-11-1548
Publikováno v:
Philosophical Magazine A. 76:615-631
Approximate expressions are derived for the phenomenological coefficients for vacancy-mechanism matter transport in a simple model of an alloy which can order in certain states. The leading coefficients (moments) in the Taylor series expansions in po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac3f7a10c8fec5c22603ee66950900fc
https://doi.org/10.1080/01418619708214025
https://doi.org/10.1080/01418619708214025