All Outputs (32)

Time series analysis of homoclinic nonlinear systems using a wavelet transform method (2004)
Journal Article
Austin, J. C., & Healey, J. J. (2004). Time series analysis of homoclinic nonlinear systems using a wavelet transform method. Fluid Dynamics Research, 34(6), Article 401. https://doi.org/10.1016/j.fluiddyn.2004.03.002

Homoclinic (and heteroclinic) trajectories are closed paths in phase space that connect one or more saddle points. They play an important role in the study of dynamical systems and are associated with the creation/destruction of limit cycles as a par... Read More about Time series analysis of homoclinic nonlinear systems using a wavelet transform method.

Broad spectrum element-specific X-ray imaging (2003)
Journal Article
Austin, J., Pitt, K., Haycock, P., Heywood, B., George, S., & Liddle, J. (2004). Broad spectrum element-specific X-ray imaging. NDT and E International, 37(3), 229-236. https://doi.org/10.1016/j.ndteint.2003.09.012

In this article element-specific mapping using a broad-spectrum laboratory based X-ray source is reported. Element-specific and element-exempt images of silver nitrate and di-hydrated barium chloride have been obtained from raw images collected eithe... Read More about Broad spectrum element-specific X-ray imaging.

X-ray images of defect formation in porcelain ceramics during drying (2003)
Journal Article
Potter, A., Austin, J., Ormerod, R., Haycock, P., Heywood, B., & George, S. (2003). X-ray images of defect formation in porcelain ceramics during drying. NDT and E International, 36(2), 77-83. https://doi.org/10.1016/S0963-8695%2802%2900088-9

The drying phase during the manufacture of ceramic pieces is often the point of failure owing to the formation of cracks. In this study, non-destructive microfocus X-ray imaging has been employed to study the onset of cracking in porcelain and correl... Read More about X-ray images of defect formation in porcelain ceramics during drying.

Ceramic fuel cells to replace metal burners (2001)
Journal Article
Kendall, K., Finnerty, C., Austin, J., & Alston, T. (2001). Ceramic fuel cells to replace metal burners. Journal of Materials Science, 36, 1119–1124. https://doi.org/10.1023/A%3A1004869522984

Global warming is thought to result from emissions largely caused by combustion reactions. Designs of burners and specifications of their materials are therefore of primary importance in restraining the warming phenomena. This paper proposes a new ty... Read More about Ceramic fuel cells to replace metal burners.

Detection of flocculation and structural variation in kaolin suspensions by ultrasound (1999)
Presentation / Conference
Austin, J. C., & Challis, R. E. (1999, December). Detection of flocculation and structural variation in kaolin suspensions by ultrasound. Paper presented at ICEU-99, New Delhi, India

The detection of structural transformations in kaolin suspensions by ultrasound (1999)
Journal Article
Austin, J. C., & Challis, R. E. (1999). The detection of structural transformations in kaolin suspensions by ultrasound. Journal of Colloid and Interface Science, 220(1), 6-12. https://doi.org/10.1006/jcis.1999.6488

Thefractal dimension of kaolin flocs suspended in water was increased by the addition of potassium chloride and indirectly monitored by low-power ultrasonic pulses in a test cell with a “pitch-catch” configuration. The results from these measurements... Read More about The detection of structural transformations in kaolin suspensions by ultrasound.

Characterisation of doped Ceria powders prepared by wet chemical methods (1999)
Conference Proceeding
Torrens, R., Sammes, N., Kendall, K., & Austin, J. (1999). Characterisation of doped Ceria powders prepared by wet chemical methods. In Solid Oxide Fuel Cells: (SOFC VI) : Proceedings of the Sixth International Symposium

Ultrasonic propagation through aqueous kaolin suspensions during degassing (1999)
Journal Article
Austin, J. C., & Challis, R. E. (1999). Ultrasonic propagation through aqueous kaolin suspensions during degassing. Ultrasonics, 37(4), https://doi.org/10.1016/S0041-624X%2899%2900004-9

A degassing procedure is necessary prior to taking ultrasonic measurements in aqueous kaolin suspensions as well as many other liquid based colloids. In this work we compare two degassing methods and show that subjecting a sample to a power ultrasoun... Read More about Ultrasonic propagation through aqueous kaolin suspensions during degassing.

The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries (1998)
Journal Article
Austin, J. C., & Challis, R. E. (1998). The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries. Journal of Colloid and Interface Science, 206(1), 146-157. https://doi.org/10.1006/jcis.1998.5712

A broadband ultrasonic spectrometer has been used to measure ultrasonic attenuation and phase velocity dispersion as functions of frequency in kaolin suspensions over a range of solid volume fractions from φ = 0.01 to φ = 0.08 and over a pH range fro... Read More about The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries.

X-ray imaging of aggregates in concentrated zirconia suspensions (1998)
Journal Article
Liang, W., Austin, J., & Kendall, K. (1998). X-ray imaging of aggregates in concentrated zirconia suspensions. Journal of Materials Science Letters, 17, 951–952. https://doi.org/10.1023/A%3A1026416707209

Ultrasonic compression wave propagation in flocculating aqueous kaolin suspensions (1997)
Thesis
Austin, J. (1996). Ultrasonic compression wave propagation in flocculating aqueous kaolin suspensions. (Dissertation). Retrieved from https://keele-repository.worktribe.com/output/845063

Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results (1996)
Journal Article
Austin, J., Holmes, A., Tebbutt, J., & Challis, R. (1996). Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results. Ultrasonics, 34(2-5), 369-374. https://doi.org/10.1016/0041-624X%2895%2900113-H

Early theories of acoustic propagation such as those by Urick, and Urick and Ament, are attractive because of their computational simplicity, but limited in application. The more complex models of Allegra and Hawley, and Harker and Temple, have since... Read More about Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results.