WorldCat Identities

Chadwick, A. V. (Alan V.)

Overview
Works: 23 works in 46 publications in 2 languages and 314 library holdings
Genres: Conference papers and proceedings 
Roles: Editor, Author, Collector, Publishing director, Opponent, Other, Contributor
Classifications: QC185, 541.3413
Publication Timeline
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Most widely held works by A. V Chadwick
Defects in solids : modern techniques by A. V Chadwick( Book )

16 editions published between 1986 and 2013 in English and held by 270 WorldCat member libraries worldwide

Defects in solids : modern techniques : [proceedings of a Nato advanced study inst., held September 16-27, 1985, in Cetraro, Calabria, Italy]( Book )

2 editions published between 1985 and 1986 in English and held by 14 WorldCat member libraries worldwide

Diffusion processes; proceedings of the Thomas Graham Memorial Symposium, University of Strathclyde by John N Sherwood( Book )

6 editions published in 1971 in English and Undetermined and held by 7 WorldCat member libraries worldwide

Defects in solids : modern techniques : (proceedings of a NATO Advanced Study Institute ; Cetraro, Calabria, Italy, September 16-27, 1985)( Book )

1 edition published in 1986 in English and held by 2 WorldCat member libraries worldwide

EXAFS and molecular modelling studies of Rb1−xBixF1+2x by P. A Cox( )

1 edition published in 1994 in English and held by 2 WorldCat member libraries worldwide

Relation entre la structure et le comportement électrochimique des phases LixNi1-yMyO2(M=Al, Fe, Co) : matériaux d'électrodes positives pour batteries au lithium by Aline Rougier( Book )

2 editions published in 1995 in French and held by 2 WorldCat member libraries worldwide

Le nickelate de lithium "LiNiO2" est actuellement l'un des matériaux d'électrode positive pour batteries au lithium les plus etudies. Cependant, "LiNiO2" stœchiométrique n'existe pas, la formule réelle est Li1-zNi1+zO2. La présence de ces (z) ions nickel excédentaires entraine une diminution significative des performances électrochimiques. Une étude structurale fine (méthode de Rietveld), couplée à une étude magnétique, a permis de quantifier de façon précise l'écart a la stœchiométrie (z). L'influence de divers substituants sur les propriétés structurales, physiques et électrochimiques a également été étudiée
Defects in solids : modern techniques ; [proceedings of a NATO Advanced Study Institute, held September 16-27, 1985, in Cetraro, Calabria, Italy]( Book )

1 edition published in 1986 in English and held by 2 WorldCat member libraries worldwide

Third Europhysics Topical Conference - Lattice Defects in Ionic Crystals : September 17-21,1979, University of Kent at Canterbury, U.K. by Europhysical Topical Conference on Lattice Defects in Ionic Crystals( Book )

1 edition published in 1980 in English and held by 1 WorldCat member library worldwide

X-Ray Absorption Spectroscopy and Computer Modelling Study of Nanocrystalline Binary Alkaline Earth Fluorides by A. V Chadwick( )

2 editions published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract: Nanocrystalline samples of Ba 1-x Ca x F2 prepared by high-energy milling show an unusually high F − ion conductivity, which exhibit a maximum in the magnitude and a minimum in the activation energy at x = 0.5. Here, we report an X-ray absorption spectroscopy (XAS) at the Ca and Sr K edges and the Ba L3 edge and a molecular dynamics (MD) simulation study of the pure and mixed fluorides. The XAS measurements on the pure binary fluorides, CaF2, SrF2 and BaF2 show that high-energy ball-milling produces very little amorphous material, in contrast to the results for ball milled oxides. XAS measurements of Ba 1-x Ca x F2 reveal that for 0 < x <1 there is considerable disorder in the local environments of the cations which is highest for x = 0.5. Hence the maximum in the conductivity corresponds to the composition with the maximum level of local disorder. The MD calculations also show a highly disordered structure consistent with the XAS results and similarly showing maximum disorder at x = 0.5
Ionic migration in alkali halide crystals by A. V Chadwick( Book )

1 edition published in 1966 in Undetermined and held by 1 WorldCat member library worldwide

Defects in solids : modern techniques ; proceedings of the NATO Advanced Study Inst. held Sept. 16-27, 1985, in Cetraro, Calabria, Italy( Book )

1 edition published in 1986 in English and held by 1 WorldCat member library worldwide

Identification and characterisation of high energy density P2-type Na2/3[Ni1/3−y/2Mn2/3−y/2Fey]O2 compounds for Na-ion batteries12( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Abstract : The Na x [Ni( x − y )/2 Mn(2− x − y )/2 Fe y ]O2 composition space was explored, and two compositions were identified as P2 compounds that can deliver high energy densities. Abstract : The composition space between MnO2, NaFeO2, and Na[Ni1/2 Mn1/2 ]O2 has been explored with the goal of identifying Earth-abundant single-phase P2 cathode materials. This has led to the identification of two compounds, P2-Na2/3 [Ni1/3− y /2 Mn2/3− y /2 Fe y ]O2 ( y = 1/6, 1/3) which exhibit state of the art specific energies. These materials were further evaluated through galvanostatic cycling and X-ray absorption spectroscopy
IONIC CONDUCTIVITY OF CRYSTALLINE CsBr( Book )

1 edition published in 1969 in English and held by 1 WorldCat member library worldwide

The electrical conductivity of pure CsBr was measured between 295 and 895K and the results analysed by least squares. Schottky disorder provides an adequate description of the results for the intrinsic conductivity except at the highest temperatures. The predicted diffusion coefficients are compared with the experimental values of Lynch. (Author)
An Investigation of Fast Ion Transport in Solids Using Conductivity and N.M.R. (Fast Ion Transport in Solids)( Book )

1 edition published in 1980 in English and held by 1 WorldCat member library worldwide

The lanthanide fluorides and mixtures of these fluorides exhibit fast ion conduction. A study has been made of ionic transport in single crystals of LaF3 systems using electrical conductivity and N.M.R. techniques. Analysing the conductivity results in terms of Schottky disorder yield values of the defect formation and migration enthalpies as 2.12 and 0.28 eV, respectively. At low temperatures the study of oriented crystals showed the conductivity // to the c-axis was twice that 1 to the c-axis. The N.M.R. relaxation time T1, T10 and T2 exhibited a complex behaviour. A model was developed to interpret these results on the basis of non-equivalent F sites in the lattice. Single crystals of La1-x Srx F3-x are good F ion conductors, better than would have been expected from previous publications. A full discussion of the results has been presented, along with suggestions for future work. (Author)
Anomalous Pressure Dependence of Dipolar Relaxation Times in Rare Earth Doped Lead Fluoride( Book )

1 edition published in 1984 in English and held by 1 WorldCat member library worldwide

Electrical relaxation measurements at high pressures have been carried out on lead fluoride doped with lanthanum and cerium. A single, strong relaxation peak is observed and the relaxation time decreases with pressure. This is contrary to the behavior exhibited by all known relaxations and can be explained by attributing the relaxation to a substitutional trivalent rare earth compensated either by an interstitial fluorine ion with a soft attempt mode or by an electron. (Author)
12th Europhysical Conference on Defects in Insulating Materials (EURODIM 2014)( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract : The 12th Europhysical Conference on Defects in Insulating Materials (EURODIM14) was held at the University of Kent, UK, from 13-18 July 2014. It was attended by about 120 delegates from around the world, and featured 56 oral presentations and 77 posters. EURODIM14 followed other conferences in the series, held in Pecs (2010), Milan (2006) and Wroclaw (2002), as well as the related ICDIM conferences held in Santa Fe (2012), Aracaju (2008) and Riga (2004). These conferences all have the aim of bringing together scientists to discuss the chemistry and physics of defects in solids, and their role in determining material properties. We would like to thank the International Advisory Committee for suggesting invited speakers, and the Local and Programme Committee for their hard work in planning and running the conference. Finally we would like to thank the authors and referees for their contributions to the proceedings. M L Alfredsson (Conference Chair) A V Chadwick R A Jackson E E McCabe
Defects in solids : modern techniques : Advanced study institute : Papers( Book )

1 edition published in 1986 in English and held by 1 WorldCat member library worldwide

Defects in solids: modern techniques( Book )

1 edition published in 1986 in English and held by 1 WorldCat member library worldwide

Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li0.2Ni0.2Mn0.6]O-2 by Kun Luo( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Conventional intercalation cathodes for lithium batteries store charge in redox reactions associated with the transition metal cations, e.g., Mn3+/4+ in LiMn2O4, and this limits the energy storage of Li-ion batteries. Compounds such as Li[Li0.2Ni0.2Mn0.6]O-2 exhibit a capacity to store charge in excess of the transition metal redox reactions. The additional capacity occurs at and above 4.5 V versus Li+/Li. The capacity at 4.5 V is dominated by oxidation of the O-2( - ) anions accounting for similar to 0.43 e( - )/formula unit, with an additional 0.06 e( - )/formula unit being associated with O loss from the lattice. In contrast, the capacity above 4.5 V is mainly O loss, similar to 0.08 e( - )/formula. The O redox reaction involves the formation of localized hole states on O during charge, which are located on O coordinated by (Mn4+/Li+). The results have been obtained by combining operando electrochemical mass spec on 180 labeled Li[Li0.2Ni0.2Mn0.6]O-2 with XANES, soft X-ray spectroscopy, resonant inelastic X-ray spectroscopy, and Raman spectroscopy. Finally the general features of O redox are described with discussion about the role of comparatively ionic (less covalent) 3d metal oxygen interaction on anion redox in lithium rich cathode materials
 
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Audience Level
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Audience level: 0.69 (from 0.64 for Diffusion ... to 0.99 for Defects in ...)

Alternative Names
Chadwick, A. V.

Chadwick, Alan

Chadwick, Alan (Alan V.)

Languages
English (38)

French (2)