Name

Charlie Sanabria

Content

1. My Career Mission Statement
2. Education
3. Research Experience
4. Publications
5. Patents
6. Honors and Awards
7. Scientific talks at international conferences
8. Invited Talks
9. Teaching
10. Service
11. Professional Skills
12. Personal Skills
13. Professional associations

My carreer mission statement

I believe science is absolutely necessary for the advancement of society, and I’m passionately driven towards initiatives that expand human capabilities. Throughout my career, I have consciously involved myself in major scientific R&D projects such as ITER, the Large Hadron Collider, and most recently SPARC—acquiring skills that range from hands‑on labor, to experimental design, database and project management. My career goal is to keep acquiring whatever skills necessary to render myself useful in scientific projects aimed to improve human conditions and to accelerate the future of humankind. Additionally, I’m always on the lookout to disseminate and popularize science & technology through writings, seminars, social media, etc.

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Education

PhD in Material Science and Engineering at The Florida State University (2017).
Watch PhD thesis presentation here, download thesis document here, or buy book here.

Bachelor’s Degree in Mechanical Engineering at The Florida State University (2011).

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Research experience

1 - Institution: Lawrence Berkeley National Laboratory.

Position: Postdoctoral Researcher.

Dates of employment: November 2017 – Present.

Description of duties and accomplishments:

Cable task deputy leader of the Accelerator Upgrade Program (AUP) aimed to upgrade the LHC magnets.

Led the development of a cryogenic resistivity measurement system used to monitor cable quality.

Developed image analysis algorithms for in‑line dimensional measurements of superconducting cables.

Developed a small‑magnet project aimed to understand the issue of “training” in accelerator magnets.

Supervisors:


Ian Pong
Soren Prestemon

2 - Institution: The Applied Superconductivity Center at the National High Magnetic Field Laboratory.

Position: PhD candidate Research Assistant (RA).

Dates of employment: July 2014 – October 2017.

Description of duties and accomplishments:

Under a grant provided by the US Department of Energy my team was to improve the wire technology for the future upgrade of the Large Hadron Collider (LHC).

My metallographic characterization and microscopy led to an improved heat treatment, and a 28% increase of the critical current density of the wires. (watch presentation here).

Co-author of a provisional patent application for a new wire design, and first author of a provisional patent application for a heat treatment process.

Supervisors:


David Larbalestier
Peter J. Lee
Michael Field

3 - Institution: Oxford Superconducting Technology (OST), now Bruker.

Position: Visiting scientist.

Dates of employment: April 2014 – July 2014.

Description of duties and accomplishments:

Performed exploratory metallography and image analysis of OST’s wire production.

My diagnosis led to a process improvement that increased the magnetic stability of the wires by 30%.

Supervisor:


Michael Field

4 - Institution: The Applied Superconductivity Center at the National High Magnetic Field Laboratory.

Position: Graduate Research Assistant (RA).

Dates of employment: May 2011 – April 2014.

Description of duties and accomplishments:

As part of the ITER crash R&D program (aka the ‘dream team’) our responsibility was to understand the mechanical failure of the ITER conductor prototypes.

My analysis reinforced our understanding of the mechanical integrity of the ‘short twist pitch’ approach taken by ITER on its Cable‑in‑conduit conductors.

Published seven scientific journals and gave eight talks at international conferences.

Supervisors:


David Larbalestier
Peter J. Lee

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Publications

Peer reviewed journal articles

C. Sanabria, M. Field, P. J. Lee, H. Miao, J. Parrell, and D. C. Larbalestier, “Controlling Cu-Sn mixing so as to enable higher critical current densities in RRP^® Nb₃Sn wires”, accepted for publication. Supercond. Sci. Technol., vol. 31, no. 6, p. 064001, 2018. This manuscript was awarded the first place of the 2018 Jan Evetts award.

C. Sanabria, P. J. Lee, W. Starch, A. Devred, and D. C. Larbalestier, “Metallographic autopsies of full-scale ITER prototype cable-in-conduit conductors after full cyclic testing in SULTAN: II. Significant reduction of strand movement and strand damage in short twist pitch CICCs,” Supercond. Sci. Technol., vol. 28, no. 12, p. 125003, 2015.

C. Sanabria, P. J. Lee, W. Starch, T. Blum, A. Devred, M. C. Jewell, I. Pong, N. Martovetsky, and D. C. Larbalestier, “Metallographic autopsies of full-scale ITER prototype cable-in-conduit conductors after full testing in SULTAN: 1. The mechanical role of copper strands in a CICC,” Supercond. Sci. Technol., vol. 28, no. 8, p. 085005, Aug. 2015.

A. Nijhuis, R. P. P. van Meerdervoort, H. J. G. Krooshoop, W. a. J. Wessel, C. Zhou, G. Rolando, C. Sanabria, P. J. Lee, D. C. Larbalestier, A. Devred, A. Vostner, N. Mitchell, Y. Takahashi, Y. Nabara, T. Boutboul, V. Tronza, S.-H. Park, and W. Yu, “The effect of axial and transverse loading on the transport properties of ITER Nb₃Sn strands,”Supercond. Sci. Technol., vol. 26, no. 8, p. 084004, Aug. 2013.

N. Mitchell, A. Devred, D. C. Larbalestier, P. J. Lee, C. Sanabria, and A. Nijhuis, “Reversible and irreversible mechanical effects in real cable-in-conduit conductors,” Supercond. Sci. Technol., vol. 26, no. 11, p. 114004, Nov. 2013.

C. Sanabria, P. J. Lee, W. Starch, I. Pong, A. Vostner, M. C. Jewell, A. Devred, and D. C. Larbalestier, “Evidence that filament fracture occurs in an ITER toroidal field conductor after cyclic Lorentz force loading in SULTAN,” Supercond. Sci. Technol., vol. 25, no. 7, p. 075007, Jul. 2012.

Peer reviewed conference papers

C. Sanabria, I. Pong, L. LaLonde, S. Prestemon, “Further Heat Treatment Optimizations for Nb₃Sn Conductors: From Wires to Cables”, IEEE Transactions on Applied Superconductivity, vol. 29, no. 5, p. 1-4, Aug 2019.

C. Sanabria, P. J. Lee, A. Devred, and D. C. Larbalestier, “Metallographic autopsies of full-scale ITER prototype cable-in-conduit conductors after full cyclic testing in SULTAN: III: The Importance of Strand Surface Roughness in Long Twist Pitch Conductors”, Supercond. Sci. Technol., vol. 29, no. 7, p. 74002, 2016.

Chapters

C. Sanabria, P. J. Lee, , “An Introduction to Digital Image Analysis of Superconductors” a chapter in the Handbook of Superconducting Materials, Second Edition (Taylor and Francis, 2016, co-chief-edited by Prof. Cardwell and Prof. Larbalestier). Submitted.

Books

C. Sanabria “A new understanding of the heat treatment of Nb3Sn superconducting wires”, Thesis Document published using CreateSpace Independent Publishing Platform. April 19^th, 2017 ISBN: 978-1-5447-7013-0

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Patents

M. Field, H. Miao, C. Sanabria, J. Parrell, “A method for producing a multifilament Nb₃Sn superconducting wire”, provisional application for patent under 37 CFR 1.53(c)

C. Sanabria, M. Field, H. Miao, J. Parrell, “Improving strand critical current density in Nb3Sn superconducting strands via novel heat treatment” in preparation.

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Honors and awards

Annual Early Career Best SUST Paper Award in memory of Jan Evetts, 1^st place (2018).

Victor Keilin Memorial Prize (Materials) Best Paper for “Development of Superconducting Materials for Large Scale Applications”. Award presented at The Applied Superconductivity Conference in Denver, CO, September 4^th-9^th 2016.

Best Student Paper Materials 1^st Place. Award presented at The Applied Superconductivity Conference in Denver, CO, September 4^th-9^th 2016.

2016 Academic Leadership Award at the Florida State University.

Best Student Paper, Large Scale 2^nd Place award presented at The Applied Superconductivity Conference in Charlotte, NC, August 10^th‑15^th, 2014.

Institute of Electrical and Electronics Engineers (IEEE), Council on Superconductivity (CSC) Graduate Study Fellowship in Applied Superconductivity award presented at The 23^rd Magnet Technology Conference at The Westin Copley Place in Boston, MA, July 14^th‑19^th, 2013.

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Scientific talks at international conferences

Click here to watch video recordings of some of these talks.

C. Sanabria, I. Pong, L. LaLonde, and S. Prestemon, “Further Heat Treatment Optimizations for Nb₃Sn Conductors – From wires to cables” presented at the Applied Superconductivity Conference in Seattle WA, October 28^th November 2^nd 2018.

C. Sanabria, I. Pong, S. Prestemon, “Understanding the dangers of skipping the 215°C step in RRP wire heat treatment”, Presented at the Low Temperature High Field Superconducting Workshop at the Omni Jacksonville Hotel, Jacksonville FL, February 12^th‑February 14^th, 2018.

C. Sanabria, M. Field, P. J. Lee, H. Miao, J. Parrell, and D. C. Larbalestier, “Reexamining the heat treatment of RRP® Nb₃Sn and the potential for further improvements”, presented at the Cryogenic Engineering Conference and the International Cryogenic Materials Conference (CEC-ICMC) at the Monona Terrace Community and Convention Center, Madison, WI, July 10^th‑July 13^th, 2017

C. Sanabria, M. Field, P. J. Lee, H. Miao, J. Parrell, and D. C. Larbalestier, “Heat treatment optimization of RRP® wires”, presented at the Low Temperature High Field Superconducting Workshop at La Fonda on the Plaza Hotel in Santa Fe, NM, February 27^th‑March 1^st, 2017.

C. Sanabria, M. Field, P. J. Lee, H. Miao, J. Parrell, and D. C. Larbalestier, “Significant improvement of J_c in small D_s RRP® wires through heat treatment changes and phase control”, presented at the Applied Superconductivity Conference in Denver, CO, September 4^th‑9^th 2016.

C. Sanabria, P. J. Lee, A. Devred, D. C. Larbalestier, “What is the deal with the Russians? – The Importance of Strand Surface Roughness in Long Twist Pitch Conductors”, presented at the 8^th Workshop on Mechanical‑Electromagnetic Properties of Composite Superconductors at The Doubletree Hotel in Tallahassee, FL, March 21^st‑23^rd, 2016.

C. Sanabria, M. Field, P. J. Lee, and D. C. Larbalestier, “A self-assembled Sn‑Nb‑Cu membrane regulating high Sn phases in RRP® wires”, presented at the Low Temperature High Field Superconducting Workshop at La Fonda on the Plaza Hotel in Santa Fe, NM, February 8^th‑10^th, 2016.

C. Sanabria, M. Field, P. J. Lee, and D. C. Larbalestier, “The Role of a Cu-Sn-Nb Membrane on the Reaction Pathway of Nb₃Sn wires”, presented at the Materials Research Society Spring Meeting at the Moscone West, the Marriott Marquis and the Park Central Hotels in San Francisco, CA, April 6^th‑10^th 2015.

C. Sanabria, M. Field, P. J. Lee, M. Gerace and D. C. Larbalestier, “Reaction Pathway Issues for Nb₃Sn”, presented at The Low Temperature High Field Superconducting Workshop at the Embassy Suites in Napa, CA, February 16^th‑18^th, 2015.

C. Sanabria, P. J. Lee, W. Starch, T. Blum, A. Devred, D. C. Larbalestier, “To Slip or Not to Slip, The Importance of Strand Surface Roughness in Long Twist Pitch Conductors”, presented at The Applied Superconductivity Conference in Charlotte, NC, August 10^th‑15^th, 2014.

C. Sanabria, P. J. Lee, W. Starch, N. Thakker, A. Atchison, A. Devred, M. C. Jewell, I. Pong, N. Martovetsky and D. C. Larbalestier, “Metallographic Autopsies on Central Solenoid SULTAN Samples”, presented at The 23^rd Magnet Technology Conference at The Westin Copley Place in Boston, MA, July 14^th‑19^th, 2013.

C. Sanabria, P. J. Lee , W. Starch , T. Blum , J. Gavin , I. Pong, M. C. Jewell, A. Devred, N. Martovetsky and D. C. Larbalestier, “Autopsy results on CSIO1 SULTAN samples”, presented at The 7^th International Workshop on Mechanical‑Electromagnetic Properties of Composite Superconductors at the Hotel Aquabella in Aix‑en‑Province, France, March 12^th‑14^th, 2013.

C. Sanabria, A. Nijhuis, R. van Meerdervoort, P. J. Lee, A. Vostner, I. Pong, M. C. Jewell, A. Devred and D. C. Larbalestier, “Filament fracture in ITER Nb₃Sn strands after controlled load simulations” presented at The Applied Superconductivity Conference at the Doubletree Hotel Portland in Portland, OR, August 7^th‑12^th, 2012.

C. Sanabria, P. J. Lee, and D. C. Larbalestier, “Metallography of post‑TARSIS strand samples and SULTAN tested conductors”, presented at the ITER Conductor Design Reconciliation Workshop of 2012 at the Aquabella hotel in Aix‑en‑Province, France, June 2012.

C. Sanabria , P. J. Lee, W. Starch, J. Diaz, I. Pong, A. Vostner, M. C. Jewell, A. Devred, and D. C. Larbalestier, “Evidence for Filament Fracture During SULTAN Testing of ITER TFEU5 CICC,” presented at The 6^th International Workshop on Mechanical–Electromagnetic Properties of Composite Superconductors at the Okinawa Convention Center in Okinawa, Japan, December 5^th‑7^th, 2011.

C. Sanabria, P. J. Lee, W. Starch, J. Diaz, I. Pong, A. Vostner, M. C. Jewell, A. Devred, and D. C. Larbalestier, “Evidence for Filament Fracture During SULTAN Testing of ITER TFEU5 CICC,” presented at the Low Temperature High Field Superconducting Workshop at the Biltmore Hotel in Providence, RI, November 7^th‑9^th, 2011.

C. Sanabria and P. J. Lee, “Metallography on TARSIS tested ITER Strands”, presented at the ITER Conductor Design Reconciliation Workshop of 2011 at the Aquabella hotel in Aix‑en‑Province, France, June 2011.

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Invited Talks

C. Sanabria, “Pushing the boundaries of superconducting wires for the future circular collider”, given at the Tuft’s University Mechanical Engineering Colloquium Series on September 22^nd, 2017

C. Sanabria, “A new understanding of the heat treatment of Nb₃Sn superconducting wires”, a Special Plenary Session given at the 25^th International Conference on Magnet Technology, at the RAI – Amsterdam, August 30^th, 2017.

C. Sanabria, “Image Analysis for Large Scale Projects”, an invited talk given at the Lawrence Berkley National Laboratory at the University of Berkeley, CA, February 29^th, 2015.

C. Sanabria, “Hot Fusion, Cold Magnets, and a Plan to Save the World”, an ITER related talk given at the Thomas University in Thomasville, GA, October 29^th 2013.

C. Sanabria, “The Power of the Sun in a Magnetic Bottle”, an ITER related talk given to a group of eight graders from the Charlie A. Gray High School in Moultrie, GA, May 20^th, 2013.

C. Sanabria, “A Star is Born”, an ITER related talk for a series sponsored by the NHMFL called “Science Café”, aimed to familiarize the general population of Tallahassee with current scientific discoveries and projects. May 1^st, 2012.

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Teaching

The Florida State University

Teaching Assistant for an introductory class to Material Science and Engineering for three semesters.
Supervisor:


David Larbalestier

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Service

Peer reviewed dozens of articles submitted to several scientific journals.

Reviewed over five Small Business Innova Research (SBIR) proposals submitted to the Department of Energy.

Technical Editor for the International Conference on Magnet Technology 24, Seoul, Korea.

Participated actively in the National Magnet Laboratory's Open House aimed to expose the public to the exciting science happening at the MagLab.

Writing tutorial documents and videos aimed to train new hires at the Applied Superconductivity Center.

Volunteer scientist at the Bay Area Scientists in Schools (BASIS) program aimed to inspire schoolchildren to pursue a career in science.

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Professional Skills

Scientific/engineering

I am a driven, resourceful, and disciplined scientist. Always approaching the problems in an objective and skeptic manner—without falling into prejudice or careless thinking.

I am a team player. I thrive in multidisciplinary environments, and have an ease to communicate issues, ideas, and solutions effectively.

I can teach myself techniques rapidly and have an outstanding adaptability to changes.

Image Analysis

Prolific at using Photoshop, Illustrator, FIJI, ImageJ, and other image analysis software.

Developing several image analysis automated macros for complex image analysis.

Metallography and microscopy

Capable of performing complex metallographic preparations.

Scanning Electron Microscopy (SEM).

Energy-dispersive X-ray spectroscopy EDS).

Focused ion beam milling (FIB).

Transmission Electron Microscopy (TEM).

CAD and 3D design

Inventor.

Pro‑E.

Video editing and animation

Blender (3D computer graphics software and video editing).

Miscellaneous Software

Outstanding MS Office skills and an ability to teach myself any software.

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Personal Skills

Communication

Good ability to communicate ideas across language and cultural barriers.

Excellent writing skills.

Creative, clear, and articulate public speaker.

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Professional associations

IEEE

IEEE Student Membership

IEEE Magnetics Society Membership

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