Imperial College London
Alternate

ProfessorNeilAlford

Faculty of Engineering, Department of Materials

Professor of Materials
 
 
 
//

Contact

 

+44 (0)20 7594 6724n.alford

 
 
//

Assistant

 

Ms Karen Murphy +44 (0)20 7594 3330

 
//

Location

 

2..05 (in RSM)Royal School of MinesSouth Kensington Campus

//

Summary

 

Publications

Publication Type
Year
to

441 results found

Alford NM, 2008, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION FOREWORD, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: XI-XI

Book chapter

Alford NM, 2008, A(B′<sub>1/3</sub>B"<sub>2/3</sub>)O<sub>3</sub> COMPLEX PEROVSKITES, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: 261-334, ISBN: 978-0-08-045330-9

Book chapter

Alford NM, Buslov OY, Keis VN, Kozyrev AB, Petrov PK, Shimko AYet al., 2008, Band-Pass Tunable Ferroelectric Filter Based on Uniplanar Dielectric Resonators, European Wireless Technology (EuWiT), Publisher: IEEE, Pages: 282-+

Conference paper

Alford NM, 2008, ALUMINA, TITANIA, CERIA, SILICATE, TUNGSTATE AND OTHER MATERIALS, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: 379-443, ISBN: 978-0-08-045330-9

Book chapter

Bovtun V, Veljko S, Axelsson A, Kamba S, Alford N, Petzelt Jet al., 2008, Microwave characterization of thin ferroelectric films without electrodes by composite dielectric resonator, 19th International Symposium on Integrated Ferroelectrics, Publisher: TAYLOR & FRANCIS LTD, Pages: 53-61, ISSN: 1058-4587

Conference paper

Alford NM, 2008, LOW TEMPERATURE COFIRED CERAMICS, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: 445-512, ISBN: 978-0-08-045330-9

Book chapter

Alford NM, Buslov OY, Keis VN, Kozyrev AB, Petrov PK, Shimko AYet al., 2008, Band-Pass Tunable Ferroelectric Filter Based on Uniplanar Dielectric Resonators, 38th European Microwave Conference, Publisher: IEEE, Pages: 740-+

Conference paper

Petrov PK, Pan Y, Zou B, Alford NMet al., 2008, Dielectric constant and loss tangent of thin ferroelectric films at microwave frequencies - How accurately can we evaluate them?, 19th International Symposium on Integrated Ferroelectrics, Publisher: TAYLOR & FRANCIS LTD, Pages: 27-37, ISSN: 1058-4587

Conference paper

Alford NM, 2008, PSEUDO-TUNGSTEN BRONZE-TYPE DIELECTRIC MATERIALS, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: 109-159, ISBN: 978-0-08-045330-9

Book chapter

Alford NM, 2008, ABO<sub>3</sub> TYPE PEROVSKITES, DIELECTRIC MATERIALS FOR WIRELESS COMMUNICATION, Publisher: ELSEVIER SCIENCE BV, Pages: 161-203, ISBN: 978-0-08-045330-9

Book chapter

Alford N, 2007, Functional films, MATERIALS WORLD, Vol: 15, Pages: 27-29, ISSN: 0967-8638

Journal article

Valant M, Axelsson A-K, Alford N, 2007, Peculiarities of a solid-state synthesis of multiferroic polycrystalline BiFeO<sub>3</sub>, CHEMISTRY OF MATERIALS, Vol: 19, Pages: 5431-5436, ISSN: 0897-4756

Journal article

Breeze J, Krupka J, Alford NM, 2007, Enhanced quality factors in aperiodic reflector resonators, APPLIED PHYSICS LETTERS, Vol: 91, ISSN: 0003-6951

Journal article

Danylyuk S, Poppe U, Kadlec F, Kužel P, Berta M, Klein N, Pullar RC, Alford NMN, Romanus Het al., 2007, Broadband microwave-to-terahertz near-field imaging, Pages: 1383-1386, ISSN: 0149-645X

In this paper we present a high performance near-field imaging method suitable for broadband applications. Recent advances in preparing micrometer and submicrometer resolution near-field probes are reported, along with examples of applications of this method both for frequency and time domain measurements. For the latter, pulsed terahertz radiation has been used to probe a broadband (300 GHz-2 THz) spectroscopic response of substances with different dielectric properties. For frequency domain measurements a continuous wave 80 GHz radiation has been applied to metallic, semiconducting, ferroelectric and biological objects. Frequency independent high spatial resolution and high sensitivity have been demonstrated for all measurements. © 2007 IEEE.

Conference paper

Salak AN, Ferreira VM, Vieira LG, Ribeiro JL, Pullar RC, Alford NMet al., 2007, Dielectric relaxation anal microwave loss in the La(Mg<sub>1/2</sub>Ti<sub>1/2</sub>)O<sub>3</sub>-(Na<sub>1/2</sub>Bi<sub>1/2</sub>)TiO<sub>3</sub> perovskite ceramics, JOURNAL OF MATERIALS RESEARCH, Vol: 22, Pages: 2676-2684, ISSN: 0884-2914

Journal article

Petrov PK, Palkar VR, Tagantsev AK, Chien H-I, Prashanthi K, Axelsson A-K, Bhattacharya S, Alford NMet al., 2007, Dielectric properties characterization of La- and Dy-doped BiFeO<sub>3</sub> thin films, JOURNAL OF MATERIALS RESEARCH, Vol: 22, Pages: 2179-2184, ISSN: 0884-2914

Journal article

Valant M, Axelsson A-K, Zou B, Alford Net al., 2007, Oxygen transport during formation and decomposition of AgNbO<sub>3</sub> and AgTaO<sub>3</sub>, JOURNAL OF MATERIALS RESEARCH, Vol: 22, Pages: 1650-1655, ISSN: 0884-2914

Journal article

Valant M, Axelsson A-K, Zou B, Alford Net al., 2007, Strain influence on crystallography of AgNbO<sub>3</sub>-based thin films, 5th International Romanian Conference on Advanced Materials, Publisher: NATL INST OPTOELECTRONICS, Pages: 1377-1381, ISSN: 1454-4164

Conference paper

Scott DJ, Coveney PV, Kilner JA, Rossiny JCH, Alford NMNet al., 2007, Prediction of the functional properties of ceramic materials from composition using artificial neural networks, Journal of the European Ceramic Society, Vol: 27, Pages: 4425-4435, ISSN: 0955-2219

We describe the development of artificial neural networks (ANN) for the prediction of the properties of ceramic materials. The ceramics studied here include polycrystalline, inorganic, non-metallic materials and are investigated on the basis of their dielectric and ionic properties. Dielectric materials are of interest in telecommunication applications, where they are used in tuning and filtering equipment. Ionic and mixed conductors are the subjects of a concerted effort in the search for new materials that can be incorporated into efficient, clean electrochemical devices of interest in energy production and greenhouse gas reduction applications. Multi-layer perceptron ANNs are trained using the back-propagation algorithm and utilise data obtained from the literature to learn composition–property relationships between the inputs and outputs of the system. The trained networks use compositional information to predict the relative permittivity and oxygen diffusion properties of ceramic materials. The results show that ANNs are able to produce accurate predictions of the properties of these ceramic materials, which can be used to develop materials suitable for use in telecommunication and energy production applications.

Journal article

ALFORD NEIL M, SALINAS FLORES ENER O, 2007, dsl modem and transformer US2007001794 - 2007-01-04, US2007001794

Patent

Anjana PS, Sebastian MT, Axelsson A-K, Alford NMet al., 2007, Microwave dielectric properties of CeO<sub>2</sub>-0.5AO-0.5TiO<sub>2</sub> (A = Ca, Mg, Zn, Mn, Co, Ni, W) ceramics, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 27, Pages: 3445-3452, ISSN: 0955-2219

Journal article

Chien H, Petrov PK, Palkar VR, Tagantse AK, Prashanthi K, Axelsson A-K, Bhattacharya S, Alford NMet al., 2007, Microwave characterisation of La- and Dy- doped BiFeO<sub>3</sub> thin films, 16th IEEE International Symposium on Applications of Ferroelectrics, Publisher: IEEE, Pages: 380-+, ISSN: 1099-4734

Conference paper

Valant M, Axelsson A-K, Alford N, 2007, Review of Ag(Nb, Ta)O<sub>3</sub> as a functional material, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 27, Pages: 2549-2560, ISSN: 0955-2219

Journal article

Pullar RC, Farrah S, Alford NM, 2007, MgWO<sub>4</sub>, ZnWO<sub>4</sub>, NiWO<sub>4</sub> and CoWO<sub>4</sub> microwave dielectric ceramics, 9th Conference and Exhibition of the European-Ceramic-Society, Publisher: ELSEVIER SCI LTD, Pages: 1059-1063, ISSN: 0955-2219

Conference paper

Danylyuk S, Poppe U, Kadlec F, Kuzel P, Berta M, Klein N, Pullar RC, Alford NM, Romanus Het al., 2007, Broadband microwave-to-terahertz near-field imaging, IEEE/MTT-S International Microwave Symposium, Publisher: IEEE, Pages: 1378-+, ISSN: 0149-645X

Conference paper

Pullar RC, Zhang Y, Chen L, Yang S, Evans JRG, Alford NMet al., 2007, Manufacture and measurement of combinatorial libraries of dielectric ceramics -: Part I:: Physical characterisation of Ba<sub>1-<i>x</i></sub>Sr<i><sub>x</sub></i>TiO<sub>3</sub> libraries, International Conference on Electroceramics, Publisher: ELSEVIER SCI LTD, Pages: 3861-3865, ISSN: 0955-2219

Conference paper

Pullar RC, Zhang Y, Chen L, Yang S, Evans JRG, Petrov PK, Salak AN, Kiselev DA, Kholkin AL, Ferreira VM, Alford NMet al., 2007, Manufacture and measurement of combinatorial libraries of dielectric ceramics -: Part II.: Dielectric measurements of Ba<sub>1-<i>x</i></sub>Sr<i><sub>x</sub></i>TiO<sub>3</sub> libraries, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 27, Pages: 4437-4443, ISSN: 0955-2219

Journal article

Centeno A, Breeze JD, Krupkaf J, Walters RA, Sarma K, Chien H, Pullar RC, Petrov PK, Alford NMNet al., 2006, Evaluating the properties of dielectric materials for microwave integrated circuits, Pages: 21-26

It is important to be able to accurately evaluate the electrical properties of dielectric materials to enable the accurate design of passive microwave integrated circuit components. This paper reports on research that has been undertaken in this area at London South Bank University. Three measurement techniques are reported. The first is a novel technique for measuring dielectric materials with a large tan δ using a composite resonator. The second is the measurement of the permittivity of ferroelectric thin films using a planar capacitor. The third is the use of an evanescent microwave probe to find the electrical properties at the surface of a sample.

Conference paper

ALFORD NEIL MCNEILL, SALINAS FLORES ENER ORLANDO, 2006, DSL MODEM AND TRANSFORMER EP1719138 2006, EP1719138, US2007001794 -

Patent

Krupka J, Breeze J, Centeno A, Alford N, Claussen T, Jensen Let al., 2006, Measurements of permittivity, dieletric loss tangent, and resistivity of float-zone silicon at microwave frequencies, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, Vol: 54, Pages: 3995-4001, ISSN: 0018-9480

Journal article

This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.

Request URL: http://wlsprd.imperial.ac.uk:80/respub/WEB-INF/jsp/search-html.jsp Request URI: /respub/WEB-INF/jsp/search-html.jsp Query String: id=00506609&limit=30&person=true&page=6&respub-action=search.html