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Nicola Bowler: Publications

Journal publications

I. Composite Materials

1.        J. Liu and N. Bowler, Comment on: Finite-Element Modeling Method for the Study of Dielectric Relaxation at High Frequencies of Heterostructures made of Multilayered Particle [J. Appl. Phys. 102, 124107 (2007)], 104, 096105, 2008.

2.        T. C. Maloney, N. L. Fischer and N. Bowler, Microwave Absorption Characteristics of Composites with Tungsten Coated Filler Particles, IEEE Trans. Dielectr. Electr. Insul., 15, 686-693, 2008.

3.        N. Bowler, Designing Dielectric Loss at Microwave Frequencies using Multi-Layered Filler Particles in a Composite, IEEE Trans. Dielectr. Electr. Insul., 13, 703-711, 2006.

4.        E. Tuncer, N. Bowler, I. J. Youngs and K. P. Lymer, Investigating Low Frequency Dielectric Properties of a Composite with the Distribution of Relaxation Times Technique, Phil. Mag. 86, 2359-2369, 2006.

5.        I. J. Youngs, N. Bowler and O. Ugurlu, Dielectric Relaxation in Composites Containing Electrically Isolated Particles with Thin Semi-Continuous Metal Coatings, J. Phys. D: Appl. Phys., 39, 1312-1325, 2006.

6.        E. Tuncer, N. Bowler and I. J. Youngs, Application of the Spectral Density Function Method to a Composite System, Physica B, 373, 306-312, 2006.

7.        I. J. Youngs, N. Bowler, K. P. Lymer and S. Hussain, Dielectric Relaxation in Metal-Coated Particles: the Dramatic Role of Nano-Scale Coatings, J. Phys. D: Appl. Phys., 38, 188-201, 2005

8.      N. Bowler, Effects of Lossy, Layered Filler Particles on the Bulk Permittivity of a Composite Material, J. Phys. D: Appl. Phys., 37, 326-333, 2004.

9.      N. Harfield, Bulk Permittivity of a Composite with Coated Spheroidal Filler Particles,  J. Mat. Sci., 35(23), 5809-5816, 2000.

10.      N. Harfield, Conductivity Calculation for a Two-Phase Composite with Spheroidal Inclusions.  J. Phys. D: Appl. Phys., 32(10), 1104-1113, 1999.

11.      N. Harfield, Conductivity of a Periodic Particle Composite with Spheroidal Inclusions. European Physical J. Appl. Phys., 6(1), 13-21, 1999.

II.Electromagnetic Nondestructive Evaluation

1.        N. Bowler, Course in Eddy Current Nondestructive Testing to Pilot New Online Graduate Certificate in NDT, Mater. Eval., 66, 910-912, 2008.

2.        J. R. Bowler, Y. Huang, H. Sun, J. Brown and N. Bowler, Alternating current potential-drop measurement of the depth of case hardening in steel rods, Meas. Sci. Technol., 19, 075204, 2008.

3.        J. R. Bowler and N. Bowler, Theory of Four-Point Alternating Current Potential Drop Measurements on Conductive Plates, Proc. R. Soc. A, 463, 817-836, 2007.

4.        N. Bowler, Theory of Four-Point Alternating Current Potential Drop Measurements on a Metal Half-Space, J. Phys. D: Appl. Phys., 39, 584-589, 2006.

5.        N. Bowler, Theory of Four-Point Direct-Current Potential Drop Measurements on a Metal Plate, Res. Nondestr. Eval., 17, 29-48, 2006.

6.        N. Bowler and Y. Huang, Electrical Conductivity Measurement of Metal Plates using Broadband Eddy-Current and Four-Point Methods, Meas. Sci. Technol., 16, 2193-2200, 2005.

7.      N. Bowler and Y. Huang, Model-Based Characterization of Homogeneous Metal Plates using Four-Point Alternating Current Potential Drop Measurements, IEEE Trans. Mag., 41(6), 2102-2110, 2005.

8.      N. Bowler, Electric Field due to Alternating Current Injected at the Surface of a Metal Plate, J. Appl. Phys., 96(8), 4607-4613, 2004.

9.      N. Bowler, Analytical Solution for the Electric Field in a Half-Space Conductor due to Alternating Current Injected at the Surface, J. Appl. Phys., 95(1), 344-348, 2004.

10.      J. R. Bowler and N. Bowler, Evaluation of the Magnetic Field Near a Crack with Application to Magnetic Particle Inspection,  J. Phys. D: Appl. Phys., 2237-2242, 2002.

11.      J. R. Bowler, N. Harfield, N. P. Merricks and W. J. Woodman, A Theoretical Analysis of Eddy-Current Effects in Loudspeaker Motors,  J. Audio Eng. Soc., 48(7-8), 668-678,  2000.

12.  J. R. Bowler and N. Harfield, Thin-Skin Eddy-Current Interaction with Semi-Elliptical and Epicyclic Cracks. IEEE Trans. Mag., 36(1), 281-291, 2000.

13.  J. R. Bowler and N. Harfield, Evaluation of Probe Impedance due to Thin-Skin Eddy-Current Interaction with Surface Cracks. IEEE Trans. Mag., 34(2), 515-523, 1998.

14.  J. R. Bowler, Y. Yoshida and N. Harfield, Vector-Potential Boundary-Integral Evaluation of Eddy-Current Interaction with a Crack. IEEE Trans. Mag., 33(5), 4287-4294, 1997.

15.  N. Harfield and J. R. Bowler, Theory of Thin-Skin Eddy-Current Interaction with Surface Cracks. J. Appl. Phys., 82(9), 4590-4603, 1997.

16.  N. Harfield and J. R. Bowler, A Geometrical Theory for Eddy-Current Non-Destructive Evaluation. Proc. R. Soc. Lond. A, 453(1961), 1121-1152, 1997.

17.  N. Harfield, Y. Yoshida and J. R. Bowler, Low-Frequency Perturbation Theory in Eddy-Current Non-Destructive Evaluation. J. Appl. Phys., 80(7), 4090-4100, 1996.

18.  N. Harfield and J. R. Bowler, Solution of the Two-Dimensional Problem of a Crack in a Uniform Field in Eddy-Current Non-Destructive Evaluation. J. Phys. D: Appl. Phys., 28(10), 2197-2205, 1995.

19.  N. Harfield and J. R. Bowler, Analysis of Eddy-Current Interaction with a Surface-Breaking Crack. J. Appl. Phys., 76(8), 4853-4856, 1994.

Conference publications

1.        N. Bowler, Frequency-Dependence of Relative Permeability in Steel, Review of Quantitative Nondestructive Evaluation Vol. 25, ed. By D. O. Thompson and D. E. Chimenti, CP820, AIP, 2006, pp. 1269-1276.

2.        N. Bowler and E. R. Abram, Monitoring the Effect of Relative Humidity during Curing on Dielectric Properties of Composites at Microwave Frequencies, Review of Quantitative Nondestructive Evaluation Vol. 25, ed. By D. O. Thompson and D. E. Chimenti, CP820, AIP, 2006, pp. 469-476.

3.        E. R. Abram and N. Bowler, Effect of relative humidity on the curing and dielectric properties of polyurethane-based composites, 2005 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, IEEE Dielectrics and Electrical Insulation Society, 457-460.

4.        E. Tuncer and N. Bowler, An empirical dielectric mixture expression and its application to composites, 2005 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, IEEE Dielectrics and Electrical Insulation Society, 152-154.

5.        N. Bowler, I. J. Youngs, K. P. Lymer and S. Hussain, Dielectric relaxation of a composite with tungsten nano-layered spherical filler particles, 2004 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena, IEEE Dielectrics and Electrical Insulation Society, 381-384.

6.        N. Bowler and Y. Huang, Approximate Theory of Four-Point Alternating Current Potential Drop on a Flat Metal Surface, In: Udpa, L. and Bowler, N., Studies in Applied Electromagnetics and Mechanics 25.  Amsterdam: IOS Press, 2005.  pp. 23-30.

7.      J. R. Bowler, N. Bowler and W. N. Podney, Evaluation of Crack Signals for a Superconductive Pulsed Eddy-Current Probe.  7th International Workshop on Electromagnetic Nondestructive Evaluation, Kobe, Japan 2001.

8.      H. Sun, J. R. Bowler, N. Bowler and M. J. Johnson, Eddy Current Measurements on Case Hardened Steel.  28th Annual Review of Progress in Quantitative Nondestructive Evaluation, Brunswick, Maine 2001.

9.      N. Bowler, J. R. Bowler and W. N. Podney, Response Model of Superconductive, Pulsed Eddy-Current Probes for Detection of Deep-Lying Flaws.  In: Thompson, D. O. and Chimenti, D. E., Review of Progress in Quantitative Nondestructive Evaluation, Volume XX.  New York: AIP Conference Proceedings 557 2001.  pp. 941-948.

10.  J. R. Bowler and N. Harfield, The Evaluation of Magnetic Flux at a Crack in a Ferromagnetic Steel Component. In: Thompson, D. O. and Chimenti, D. E., Review of Progress in Quantitative Nondestructive Evaluation, Volume XIX.  New York: AIP Conference Proceedings 509 2000.  pp. 1573-1580.

11.  F. Villone and N. Harfield, Simulation of the Effects of Current Leakage across Thin Cracks.  In: Udpa, S. S., Takagi, T., Pavo, J. and Albanese, R., Studies in Applied Electromagnetics and Mechanics 17.  Amsterdam: IOS Press, 2000.  pp. 79-86.

12.  N. Harfield, J. R. Bowler and G. C. Stevens, Modelling the Electrical Conductivity of Two-Phase Composite Materials.  Institute of Physics Conference Series, vol. 163, 1999.  pp. 41-44.

13.      N. Harfield and J. R. Bowler, Prediction of Eddy-Current Signals due to Cracks Concealed by Surface Deposits.  In: Lesselier, D. and Razek, A., Studies in Applied Electromagnetics and Mechanics 15.  Amsterdam: IOS Press, 1999.  pp. 188-199.

14.      S. Mastorchio and N. Harfield, Modelling of Eddy-Current Interaction with Cracks in the Thin-Skin Regime: Two Approaches. The 7th European Conference on Non-Destructive Testing, Copenhagen: 26-29 May 1998.

15.      J. R. Bowler and N. Harfield, High Frequency Eddy Current Interaction with Cracks. As for 5, pp. 9-16.

16.      N. Harfield and J. R. Bowler, A Thin-Skin Theory of Current Leakage across Surface Cracks.  In: Albanese, R., Rubinacci, G., Takagi, T. and Udpa, S. S., Studies in Applied Electromagnetics and Mechanics 14.  Amsterdam: IOS Press, 1998. pp. 1-8.

17.      N. Harfield and J. R. Bowler, Theory of Eddy-Current Interaction with Surface Cracks in Ferromagnetic Steels.  In: Takagi, T., Bowler, J. R. and Yoshida, Y., Studies in Applied Electromagnetics and Mechanics 12.  Amsterdam: IOS Press, 1997. pp. 59-66.

18.      N. Harfield and J. R. Bowler, Prediction of Eddy-Current Probe Impedance due to Surface Cracks in Ferromagnetic Steels.  In: Thompson, D. O. and Chimenti, D. E., Review of Progress in Quantitative Nondestructive Evaluation, Volume XVI.  New York: Plenum, 1997.  pp. 241-248.

19.      N. Harfield and J. R. Bowler, A New Method for Predicting Eddy-Current Interaction with Cracks based on the Geometrical Theory of Diffraction.  In: Collins, R., Dover, W. D., Bowler, J. R. and Miya, K., Studies in Applied Electromagnetics and Mechanics 8.  Amsterdam: IOS Press, 1995. pp. 103-114.

20.      N. Harfield and J. R. Bowler, Analytical Calculations of Eddy-Current Probe Impedance Response to Cracks.  In: Thompson, D. O. and Chimenti, D. E., Review of Progress in Quantitative Nondestructive Evaluation, Volume XIII.  New York: Plenum, 1994.  pp. 279-286.

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