Dr Samuel Hefford

(Translated he/him)

2022

• Hefford, S. and Porch, A. 2022. Surface resistance of metallised 3D-printed plastic surfaces measured in the C-band using a dielectric resonator. Presented at: 2022 Asia-Pacific Microwave Conference (APMC), Yokohama, Japan, 29 November 2022 - 02 December 2022Proceedings of 2022 Asia-Pacific Microwave Conference (APMC). IEEE pp. 142-144., (10.23919/APMC55665.2022.9999909)

2021

• Gumbleton, R., Cuenca, J. A., Hefford, S., Nai, K. and Porch, A. 2021. Measurement technique for microwave surface resistance of additive manufactured metals. IEEE Transactions on Microwave Theory and Techniques 69(1), pp. 189-197. (10.1109/TMTT.2020.3035082)
• Hefford, S., Clark, N., Gumbleton, R. and Porch, A. 2021. Liftoff dielectric resonator for the microwave surface resistance measurement of metal plates. IEEE Transactions on Instrumentation and Measurement 70, article number: 8002208. (10.1109/TIM.2020.3040834)

2019

• Hefford, S. J. 2019. Microwave processing in additive manufacturing. PhD Thesis, Cardiff University.
• Gumbleton, R., Nai, K., Hefford, S. and Porch, A. 2019. Effects of post-processing treatments on the microwave performance of additively manufactured samples. Presented at: 13th European Conference on Antennas and Propagation (EuCAP) 2019, UK, 31 March - 5 April 2019.
• Parker, N., Hefford, S., Lees, J., Cripps, S. and Porch, A. 2019. A novel VHF heating system to aid selective laser melting. Presented at: 2019 IEEE MTT-S International Microwave Symposium, IMS 2019, Boston, USA, 2 -7 June 2019. pp. -.

2017

• Clark, N., Hefford, S. and Porch, A. 2017. Effect of build orientation and surface finish on surface resistance in microwave components produced by Selective Laser Melting. Presented at: 47th European Microwave Conference (EuMC), Nuremberg, Germany, 10-12 October 20172017 47th European Microwave Conference (EuMC). IEEE pp. 508-511., (10.23919/EuMC.2017.8230901)
• Hefford, S., Parker, N., Lees, J. and Porch, A. 2017. Monitoring changes in microwave asorption of Ti64 powder during microwave sintering. Presented at: 2017 47th European Microwave Conference (EuMC), Nuremberg, Germany, 10-12 October 20172017 47th European Microwave Conference (EuMC). IEEE pp. 927-929., (10.23919/EuMC.2017.8230997)