Joseph Longji Dadiel

Enthusiastic and driven Systems Engineer with proven track record of understanding and translating technical requirements to improve system accuracy and reliability. Veteran R & D expert with extensive professional experience, managing high-profile laboratory and industrial-based energy projects in multi-disciplinary fields of expertise. Successfully delivered quality projects in fast-paced R & D projects with some results published in journals.

• The Advanced Institutes of Science and Technology, Japan
• The National Institute of Materials Sciences, Japan
• The International Society for Optics and Photonics SPIE
• Japan International Cooperation Agency, JICA
• Rotary Foundation of Japan
• Nigerian Society of Engineers, NSE

• Ph.D. Materials Science and Engineering [Regional Environment Systems]
• MSc. Materials Science and Engineering [Superconducting Materials]
• Sub-major in Business Development, Shibuara Institute of Technology.
• Materials Analyst [Synthesis & characterizations], Techno Plaza, SIT, Japan.
• Data Science Foundation, Le Wagon, Tokyo.

• J.L. Dadiel, J. Sugiyama, N. Sakai, K. Takemura, T. Oka, H. Ogino, M. Muralidhar and M. Murakami, “Improved Connectivity of MgB2 Bulk Superconductor via In Situ-Ex Situ Co-Synthesis” Springer: Journal of Superconductivity and Novel Magnetism 2023, DOI 10.1007/s10948-023-06549-w
• K. Takemura, K. Sudo, R. Dorget, J.L. Dadiel, M. Sakafuji, K. Yokoyama, T. Oka, M. Murakami, N. Sakai, “Pulsed field magnetization behavior of Gd-Ba-Cu-O bulk superconductor with a superconducting joint” IEEE Transactions on Applied Superconductivity (Early Access) 2023, DOI 10.1109/TASC.2023.3244149
• T Oka, K Sudo, L Dadiel, N Sakai, H Seki, M Miryala, M Murakami, T Nakano, M Ooizumi, K Yokoyama, M Tsujimura,” Magnetic separation of nickel plating waste liquid using a high temperature superconducting bulk magnet “Superconductor science and Technology 2022, vol. 35 Issue 9, 094006
• Dadiel J.L, N. Sakai, K. Yokoyama, K. Takemura, M. Miryala, M. Murakami, Jacques Noudem “Field-trapping performance of drilled MgB2 bulk superconductor embedded with Bi-In-Sn alloy and Al-rod in pulse-field magnetization processes” IEEE Transactions on Applied Superconductivity 2022, Vol. 32, Issue 34, Page 1-6
• Dadiel, J.L.; Naik, S.P.K.; Pęczkowski, P.; Sugiyama, J.; Ogino, H.; Sakai, N.; Kazuya, Y.; Warski, T.; Wojcik, A.; Oka, T.; Murakami, M. “Synthesis of Dense MgB2 Superconductor via In-Situ and Ex-Situ Spark Plasma Sintering Method” Materials 2021, Vol. 14, Issue 23, 7395
• Paweł Pęczkowski, Piotr Zachariasz, Marcin Kowalik, Waldemar Tokarz, Sugali Pavan Kumar Naik, Jan Żukrowski, Cezariusz Jastrzębski, Longji Joseph Dadiel, Wojciech Tabiś, Łukasz Gonde ”Iron diffusivity into superconducting YBa2Cu3O7-δ at oxygen-assisted sintering: structural, magnetic, and transport properties”, Journal of the European Ceramic Society, Vol. 41, Issue 14, 2021, Pages 7085-7097
• T Oka, M Furusawa, K Sudo, L Dadiel, N Sakai, H Seki, M Miryala, M Murakami, T Nakano, M Ooizumi, K Yokoyama, M Tsujimura,” Feasible waste liquid treatment from electroless nickel plating by intense magnetic field of HTS bulk magnets” The Korean Society of Superconductivity and Cryogenics 2021, Volume 23, Issue 3, pages 37-40
• Rémi Dorget, Kévin Berger, J Longji Dadiel, Kimiaki Sudo, Naomichi Sakai, Tetsuo Oka, Masato Murakami, Jean Lévêque “Modelling of the pulse field magnetization of a REBaCuO bulk with a superconducting weld” IOP J. Phys. Conf. Ser. 2021, 2043. 012001
• Tetsuo Oka, Kengo Yamanaka, Kimiaki Sudo, Longji Dadiel, Jun Ogawa, Kazuya Yokoyama, Walfgang Häßler, Jacques Noudem, Kévin Berger, Naomichi Sakai, Muralidhar Miryala, Masato Murakami “Shielding Effect on Flux Trapping in Pulsed-Field Magnetizing for Mg-B Bulk Magnet” IOP Journal of Physics: Conf. Ser. 2021, 1975. 012019
• N Sakai, T Oka, K Yamanaka, L Dadiel, H Oki, J Ogawa, S Fukui, J Scheiter, W Häßler, K Yokoyama, J Noudem, M Miryala and M Murakami “Occurrence of Flux Jumps in MgB2 Bulk Magnets during Pulse-Field Magnetization”, IOP Journal of physics: Conf. Series 2020, 1559 012057.
• T Oka, A Takeda, H Oki, K Yamanaka, L Dadiel, K Yokoyama, W Häßler, J Scheiter, Naomichi Sakai, Masato Murakami “Magnetic Flux Trapping and Flux Jumps in Pulsed Field Magnetizing Processes in REBCO and Mg-B Bulk Magnets”, IOP, Journal of Physics: Conf. Ser. 2020, 1590 012025
• Tetsuo Oka, Akira Takeda, Oki Hayami, Jun Ogawa, Satoshi Fukui, Juliana Scheiter, Wolfgang Hasler, Kazuya Yokoyama, Longji Dadiel, M. Miryala, N. Sakai, M. Murakami, Jacques Noudem “Study on Magnetic Flux Dissipation and Field-Trapping Performance of HTS Bulk-Shaped Magnesium Diboride in Pulse-Field Magnetizing Processes” IEEE Transactions on Applied Superconductivity, 2019, 29 8678817
• J. Longji Dadiel, M. Muralidhar, S Pavan Kumar Naik, M. Murakami (2018), “Processing and Characterization of Charcoal Added Bulk MgB2 Superconductor”, IOP Journal of Physics: Conf. Ser. 2019, 1293 012047
• J. Longji Dadiel, M. Muralidhar and M. Murakami (2018), “Improved Superconducting Performance of Ag-added nano-diamond doped MgB2”, Superconductivity and Particle Accelerators SPAS 2019, Proc. SPIE 11054
• J. Longji Dadiel, M. Muralidhar and M. Murakami, “Flux Pinning and Superconducting Properties of MgB2-Diamond nanocomposites”, International Symposium on Superconductivity, IOP Journal of physics Conf. Ser. 2018 1054 012052

• Tetsuo Oka, Hayami Oki, Kengo Yamanaka, Kimiaki Sudo, Longji Dadiel, Rémi Dorget, Walfgang Häßler, Juliana Scheiter, Jun Ogawa, Kévin Berger, Jean Lévêque, Jacques Noudem, Naomichi Sakai, Masato Murakami, Kazuya Yokoyama” Experimental Study on Flux Trapping and Flux Jump on Pulsed-Field Magnetization Process for Mg-B Trapped-Field Magnet” 7th International Conference on Superconductivity and Magnetism - ICSM2020 2021, Bodrum, Turkey. p. 154, ID 491. ⟨hal-03410075⟩
• Tetsuo Oka, Kengo Yamanaka, Masateru Sudo, Dadiel Longji, Rémi Dorget, Kazuya Yokoyama, Juliana Scheiter, Jun Ogawa, Satoshi Fukui, Kévin Berger, Petre Badica, Jacques Noudem.“Trapped magnetic field characteristics of MgB2 bulk with different additive contents and MgB2 bulk with different types of additives by pulse magnetization”. ISS 2020 - 33th International Symposium on Superconductivity, Dec 2020, Tsukuba, Japan. pp.WB5-13. ⟨hal-03034714⟩

Presentations and Invited Talks

· Oral, J. Longji Dadiel, N. Sakai, J. Sugiyama, K. Takemura, T. Oka, K. Yokoyama, H. Ogino, M. Miryala, and M. Murakami “Improved Connectivity of MgB2 Superconductor via In-Situ-Ex-Situ Co-Synthesis” International Workshop on Processing and Application of Superconducting Bulk Materials (PASREG 2021) Shanghai Nov. 11 – 14, 2021.

· Oral, J. Longji Dadiel, N. Sakai, K. Takemura, T. Oka, K. Yokoyama, M. Miryala, and M. Murakami, “Field trapping Performance of Drilled MgB2 Bulk Superconductor Filled with Bi-In-Sn Alloy and Al-rod using Pulse Field Magnetization Process” 15th European Conference on Applied Superconductivity (EUCAS 2021) Moscow, Russia September 5 – 9, 2021.

· Oral, J. Longji Dadiel, N. Sakai, T. Oka, M. Miryala, and M. Murakami. Comparative Study of the Effect of Nanodiamond and Charcoal on the Superconducting Properties of MgB2 Bulk Superconductor” 33rd International Symposium on Superconductivity” (ISS 2020), Tsukuba, Japan Dec. 1 – 3, 2020.

· Poster Presentation, J. Longji Dadiel, M. Miryala, and M. Murakami. Optimization of Sintering Conditions for Synthesizing Dense MgB2 bulk Superconductor via Ex-situ Spark Plasma Sintering” 32nd International Symposium on Superconductivity” (ISS 2019), Kyoto, Japan December 3-5, 2019.

· Poster Presentation, Jun Sugiyama, M. Miryala, J. Longji Dadiel, N. Sakai, T. Oka, K. Yokoyama, H. Ogino, S. Pavan Kumar Naik, and M. Murakami, “Improved Performance of MgB2 Superconductor Produced via Combination of In-situ and Ex-situ Method” 32nd International Symposium on Superconductivity” (ISS 2019), Kyoto, Japan, Dec. 3 – 5, 2019.

· Poster Presentation J. Longji Dadiel, S. Srikanth, M. Miryala, S.P.K Naik and M. Murakami “Processing and Characterization of Charcoal Added Bulk MgB2 Superconductor” 31st International Symposium on Superconductivity (ISS 2018), Tsukuba, Japan, Dec. 12 -14, 2018.

· Invited Talk, J. Longji Dadiel, M. Miryala, and M. Murakami “Improved Superconducting Properties of Ag-Added Nano-diamond Doped MgB2” Superconductivity and Particle Accelerators (SPAS 2018) Krakow, Poland, Nov. 27 – 29, 2018.

· Oral, J. Longji Dadiel, M. Miryala, and M. Murakami “Improved Superconducting Properties of MgB2 Bulk Superconductor” 12th South-East Asian Technical Students Consortium, (SEATUC 2018), Yogyakarta, Indonesia, March 12 – 13, 2018.

· Poster Presentation, J. Longji Dadiel, M. Miryala, and M. Murakami. Flux Pinning and Superconducting Properties of MgB2-Diamond Nanocomposites. The 30th International Symposium on Superconductivity (ISS 2017) Tokyo, Japan, Dec. 13 – 15, 2017.

· Poster Presentation, J. Longji Dadiel, M. Miryala, and M. Murakami “Flux Pinning and Superconducting Properties of MgB2-Diamond Nanocomposites” 10th International Workshop on Processing and Application of Superconducting Bulk Materials (PASREG 2017), Tokyo, Japan, Dec. 11 – 12, 2017.