Zobrazeno 1 - 10
of 17
pro vyhledávání: '"R. W. C. Lewis"'
Publikováno v:
Roscow, J, Lewis, R, Taylor, J & Bowen, C 2017, ' Modelling and fabrication of porous sandwich layer barium titanate with improved piezoelectric energy harvesting figures of merit ', Acta Materialia, vol. 128, pp. 207-217 . https://doi.org/10.1016/j.actamat.2017.02.029
This paper demonstrates that porous ‘sandwich’ structures can provide an effective route for the design and optimisation of piezoelectric materials for energy harvesting applications, which is becoming an increasingly important technology for sel
Autor:
Qingping Wang, Shenglin Jiang, Christopher R. Bowen, R. W. C. Lewis, Wen Lei, Jun Chen, Ming-Yu Li, Haibo Zhang
Publikováno v:
Wang, Q, Bowen, C R, Lewis, R, Chen, J, Lei, W, Zhang, H, Li, M Y & Jiang, S 2019, ' Hexagonal boron nitride nanosheets doped pyroelectric ceramic composite for high-performance thermal energy harvesting ', Nano Energy, vol. 60, pp. 144-152 . https://doi.org/10.1016/j.nanoen.2019.03.037
Recently, recycling energy from wasted heat with pyroelectric materials has received significant attention. However, pyroelectric energy harvesters generally suffer from a low energy efficiency due to the low rates of heat transfer. Here, we report h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd8604a3d3623b38c7eec6d0b3051527
https://purehost.bath.ac.uk/ws/files/190937588/Manuscript_final_version.pdf
https://purehost.bath.ac.uk/ws/files/190937588/Manuscript_final_version.pdf
Publikováno v:
Roscow, J I, Zhang, Y, Kraśny, M J, Lewis, R W C, Taylor, J & Bowen, C R 2018, ' Freeze cast porous barium titanate for enhanced piezoelectric energy harvesting ', Journal of Physics D: Applied Physics, vol. 51, no. 22, 225301, pp. 1-18 . https://doi.org/10.1088/1361-6463/aabc81
Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics
Energy harvesting is an important developing technology for a new generation of self-powered sensor networks. This paper demonstrates the significant improvement in the piezoelectric energy harvesting performance of barium titanate by forming highly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e96695fe50cb1e23bcdc5651dcd941e3
http://arxiv.org/abs/1902.00314
http://arxiv.org/abs/1902.00314
Publikováno v:
Loukaides, E G, Lewis, R W C & Bowen, C R 2019, ' Additive manufacture of multistable structures ', Smart Materials and Structures, vol. 28, no. 2, 02LT02, pp. 1-10 . https://doi.org/10.1088/1361-665X/aae4f6
Residual thermal stresses which develop during additive manufacturing processes are often a cause of unwanted component deformation and mechanical failure. We demonstrate that this impairment can in fact be exploited to enhance the design process for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33ff59f1ac1056f34761a1b97088ff8a
https://purehost.bath.ac.uk/ws/files/187263373/Loukaides_et_al_2018_Smart_Mater._Struct._10.1088_1361_665X_aae4f6.pdf
https://purehost.bath.ac.uk/ws/files/187263373/Loukaides_et_al_2018_Smart_Mater._Struct._10.1088_1361_665X_aae4f6.pdf
Autor:
R. W. C. Lewis, Christopher R. Bowen, Yan Zhang, Mengying Xie, Vitaly Yu. Topolov, James Roscow, Hamideh Khanbareh
Publikováno v:
Zhang, Y, Roscow, J, Lewis, R, Khanbareh, H, Topolov, V Y, Xie, M & Bowen, C R 2018, ' Understanding the effect of porosity on the polarisation-field response of ferroelectric materials ', Acta Materialia, vol. 154, pp. 100-112 . https://doi.org/10.1016/j.actamat.2018.05.007
Acta Materialia
Acta Materialia
This paper combines experimental and modelling studies to provide a detailed examination of the influence of porosity volume fraction and morphology on the polarisation-electric field response of ferroelectric materials. The broadening of the electri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52d355097323c43fdf7fa911ee07916e
https://purehost.bath.ac.uk/ws/files/185341614/3_Manuscript_very_final_for_submission.pdf
https://purehost.bath.ac.uk/ws/files/185341614/3_Manuscript_very_final_for_submission.pdf
Finite element modelling of bilayer porous PZT structures with improved hydrostatic figures of merit
Publikováno v:
Roscow, J I, Lewis, R W C, Taylor, J & Bowen, C R 2017, Finite element modelling of bilayer porous PZT structures with improved hydrostatic figures of merit . in 2017 Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017-Conference ., 8000217, IEEE, pp. 78-82, Joint IEEE International Symposium on Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices and Piezoresponse Force Microscopy Workshop, ISAF-IWATMD-PFM 2017, Atlanta, USA United States, 7/05/17 . https://doi.org/10.1109/ISAF.2017.8000217
A finite element model is presented in which bilayer lead zirconate titanate (PZT) structures that are formed from a dense layer and a porous layer are investigated for their hydrostatic sensing properties. The model simulates the poling of the porou
Autor:
V. Yu. Topolov, Christopher R. Bowen, Alexander Satka, Philip A. Shields, R. W. C. Lewis, Duncan W. E. Allsopp, S. Yu
Publikováno v:
Lewis, R W C, Allsopp, D W E, Shields, P, Šatka, A, Yu, S, Topolov, V Y & Bowen, C R 2012, ' Nano-Imprinting of Highly Ordered Nano-Pillars of Lithium Niobate (LiNbO3) ', Ferroelectrics, vol. 429, no. 1, pp. 62-68 . https://doi.org/10.1080/00150193.2012.676955
Lithium niobate (LiNbO3) is used in applications such as in optoelectronics, surface acoustic wave devices and transducers. In this paper nano-patterning of LiNbO3 wafers at the wafer scale is investigated using a novel low cost and large-area nano-i
Publikováno v:
Integrated Ferroelectrics. 133:103-108
This work examines the modelling and potential formation of submicron ferroelectric pillars which are exploited as an active component of modern 1–3 piezocomposites. These structures are of interest in sensor and actuator technologies, and most not
Publikováno v:
Acta Materialia. 152:199
Publikováno v:
Ferroelectrics. 389:95-106
The harmonic response and modal shapes of axially-symmetrical piezoceramic cylinders (tubes) polarised through the wall thickness have been predicted by finite element methods and determined experimentally. Analysis of ceramic cylinders has concentra