Jonathan E. Guyer

Staff Employment

2014-present: Group Leader, Mechanical Performance, MSED
2012–2014: Staff Member, Materials Science and Engineering Division, NIST
2000–2012: Staff Member, Metallurgy Division, NIST
1997–2000: NRC-NIST Postdoctoral Research Associate, Semiconductor Electronics Division, NIST
1991–1997: Graduate Research and Teaching Assistant, Department of Materials Science and Engineering, Northwestern University
1995: NSF Summer Institute in Japan, Electrotechnical Laboratory, Tsukuba, Japan
1986-1991: Division Officer, Nuclear Powered Submarine, USS Casimir Pulaski (SSBN-633) BLUE, United States Navy

Staff Education

PhD, Northwestern University, Evanston, IL, Materials Science and Engineering
- Dissertation: "Stability of Alloy Thin Films"
  Advisors: Prof. Peter W. Voorhees and Prof. Scott A. Barnett
Naval Nuclear Propulsion School, Orlando, FL and S5G Prototype Reactor, Idaho Falls, ID
- Intensive, year-long, practical and theoretical training in nuclear reactor operations
BS, Northwestern University, Evanston, IL, Materials Science and Engineering
- Thesis: "Temperature Dependence of Photoluminescence in InP/InAsP Strained Layer Superlattices"
  Advisors: Dean Jerome B. Cohen and Prof. Bruce W. Wessels

Research Interests

Modeling of phase transformations and thin film growth

Electrodeposition and molecular beam epitaxy

CdTe thin film photovoltaics

Medical applications of silver nanoparticles

Co-developer of the FiPy partial differential nist-equation package for phase transformation modeling

Organizer of the NIST Workshop on Wires, Whiskers and Walls: Energy Applications at the Nanoscale

Recent Submissions

Saylor DM, Guyer JE, Wheeler D, Warren JA, "Predicting Microstructure Development During Casting of Drug Eluting Coatings" Acta Biomater (2010), doi:10.1016/j.actbio.2010.09.019 (in press)

Josell D, Beauchamp CR, Hamadani B, Jung S, Guyer JE, Hangarter C, Gergel-Hackett N, Xu H, Zhitenev N, "Three-Dimensionally Structured Thin Film Heterojunction Photovoltaics on Interdigitated Back-Contacts" (submitted)

Dair B, Saylor DM, Cargal TE, French GR, Kennedy KM, Casas RS, Guyer JE, Warren JA, Pollack SK, "The Effect of Substrate Material on Silver Nanoparticle Antimicrobial Efficacy" J Nanosci Nanotechnol (submitted)

Mohanty RR, Guyer JE, Sohn YH, "Diffusion under temperature gradient: A phase-field model study," Journal of Applied Physics 106(3) 034912 (2009), doi:10.1063/1.3190607

Publications

PFHub: The Phase-Field Community Hub

April 17, 2019

Author(s)

Daniel Wheeler, Trevor Keller, Jonathan E. Guyer, James A. Warren, Stephen DeWitt, Andrea Jokisaari, Daniel Schwen, Larry Aagesen, Olle Heinonen, Michael Tonks, Peter Voorhees

An online portal provides a valuable space for scientific communities to summarize a shared challenge, collect attempts at a solution, and present a

Simulation of temperature, stress and microstructure fields during laser deposition of Ti-6Al-4V

September 25, 2018

Author(s)

Supriyo Ghosh, Kevin S. McReynolds, Jonathan E. Guyer, Dilip K. Banerjee

We study the evolution of prior columnar β phase, interface L phase, and α phase during directional solidification of a Ti-6Al-4V melt pool. Finite element

Formation of Nb-rich droplets in laser deposited Ni-matrix microstructures

March 15, 2018

Author(s)

Supriyo Ghosh, Mark R. Stoudt, Lyle E. Levine, Jonathan E. Guyer

Ni-rich $\gamma$ cells/dendrites and Nb-rich eutectic droplets that form during laser power bed fusion (LPBF) solidification of Ni-Nb alloys are studied in the

Single Track Melt Pool Measurements and Microstructures in Inconel 625

February 20, 2018

Author(s)

Supriyo Ghosh, Li Ma, Lyle E. Levine, Richard E. Ricker, Mark R. Stoudt, Jarred C. Heigel, Jonathan E. Guyer

We use single track laser melting experiments and simulations on Inconel 625 to estimate the dimensions and microstructures of the resulting melt pools. Our

Application of Finite Element, Phase-field, and CALPHAD-based Methods to Additive Manufacturing of Ni-based Superalloys

September 21, 2017

Author(s)

Trevor Keller, Greta Lindwall, Supriyo Ghosh, Li Ma, Brandon M. Lane, Fan Zhang, Ursula R. Kattner, Eric Lass, Yaakov S. Idell, Maureen E. Williams, Andrew J. Allen, Jonathan E. Guyer, Lyle E. Levine

Numerical simulations are used in this work to investigate aspects of microstructure and microsegregation during rapid solidification of a Ni-based superalloy

View more Publications

Staff Employment

2014-present: Group Leader, Mechanical Performance, MSED
2012–2014: Staff Member, Materials Science and Engineering Division, NIST
2000–2012: Staff Member, Metallurgy Division, NIST
1997–2000: NRC-NIST Postdoctoral Research Associate, Semiconductor Electronics Division, NIST
1991–1997: Graduate Research and Teaching Assistant, Department of Materials Science and Engineering, Northwestern University
1995: NSF Summer Institute in Japan, Electrotechnical Laboratory, Tsukuba, Japan
1986-1991: Division Officer, Nuclear Powered Submarine, USS Casimir Pulaski (SSBN-633) BLUE, United States Navy

Staff Education

PhD, Northwestern University, Evanston, IL, Materials Science and Engineering
- Dissertation: "Stability of Alloy Thin Films"
  Advisors: Prof. Peter W. Voorhees and Prof. Scott A. Barnett
Naval Nuclear Propulsion School, Orlando, FL and S5G Prototype Reactor, Idaho Falls, ID
- Intensive, year-long, practical and theoretical training in nuclear reactor operations
BS, Northwestern University, Evanston, IL, Materials Science and Engineering
- Thesis: "Temperature Dependence of Photoluminescence in InP/InAsP Strained Layer Superlattices"
  Advisors: Dean Jerome B. Cohen and Prof. Bruce W. Wessels

Jonathan E. Guyer

Research Interests

Recent Submissions

Publications

Selected Publications