Publications

Displaying 1 - 17 of 17

Phase Composition and Phase Transformation of Additively Manufactured Nickel Alloy 718 AM Bench Artifacts

February 5, 2024

Author(s)

Fan Zhang, Aaron Johnston-Peck, Lyle E. Levine, Michael Katz, Kil-Won Moon, Maureen E. Williams, Sandra W. Young, Andrew J. Allen, Olaf Borkiewicz, Jan Ilavsky

Additive Manufacturing (AM) technologies offer unprecedented design flexibility but are limited by a lack of understanding of the material microstructure formed under their extreme and transient processing conditions and its subsequent transformation

Temperature-dependent perpendicular anisotropy and Gilbert damping of L10-FePd films: Role of noble-metal buffer layers

November 23, 2022

Author(s)

Dingbin Huang, Deyuan Lyu, Xinjun Wang, Michael Katz, Delin Zhang, Jian-Ping Wang, Daniel Gopman, Xiaojia Wang

Microstructural evolution at the interface of superconducting thin films and SiC substrate

November 7, 2022

Author(s)

Michael Katz, Albert Rigosi, Chieh-I Liu, Mattias Kruskopf, Heather Hill, Angela R. Hight Walker, Randolph Elmquist, Albert Davydov

Laser-free GHz stroboscopic TEM: components, system integration, and practical considerations for pump-probe measurements

February 24, 2020

Author(s)

June W. Lau, Karl B. Schliep, Michael B. Katz, Vikrant J. Gokhale, Jason J. Gorman

A 300 keV transmission electron microscope was modified to produce broadband pulsed beams, that can be in principle, between 40 MHz to 12 GHz, corresponding to temporal resolution in the nanosecond to picosecond range without an excitation laser. The key

Tunable Electron Beam Pulser for Picoseconds Stroboscopic Microscopy in Transmission Electron Microscopes

August 26, 2019

Author(s)

June W. Lau, Michael B. Katz

For two decades, time-resolved transmission electron microscopes (TEM) have relied on pulsed-laser photoemission to generate electron bunches to explore sub-microsecond to sub- picosecond dynamics. Despite the vast successes of photoemission time-resolved

Solidification of Ni-Re Peritectic Alloys

February 4, 2019

Author(s)

William J. Boettinger, Dale E. Newbury, Nicholas W. Ritchie, Maureen E. Williams, Ursula R. Kattner, Eric Lass, Kil-Won Moon, Michael B. Katz

Differential thermal analysis (DTA) and microstructural and microprobe measurements of DTA and as-cast Ni-Re alloys with compositions between 0.20 and 0.44 mass fraction Re provide information to resolve differences in previously published Ni-Re phase

Atomic layer deposition of MoS2 films using bis(tert-butylimido)-bis(dimethylamido)molybdenum and 1-propanethiol

December 31, 2018

Author(s)

Berc Kalanyan, Ryan Beams, Michael B. Katz, Albert Davydov, James E. Maslar, Ravindra Kanjolia

Proposed commercial applications using transition metal dichalcogenide (TMD) semiconductors such as MoS2 rely on unique material properties that are only accessible at monolayer to few- layer thickness regimes. Therefore, production methods that lend

Precipitation and dissolution of delta and gamma-double-prime during heat treatment of a laser powder-bed fusion produced Ni-based superalloy

June 8, 2018

Author(s)

Eric Lass, Mark R. Stoudt, Maureen E. Williams, Michael B. Katz

One drawback of the laser powder-bed fusion additive manufacturing (AM) technique is the build-up of residual stresses during processing that require a stress-relief heat treatment prior to components being removed from the build plate. Here, we

Formation of the Ni3Nb delta-phase in stress-relieved Inconel 625 produced via powder-bed laser fusion additive manufacturing

August 23, 2017

Author(s)

Eric Lass, Mark R. Stoudt, Maureen E. Williams, Michael B. Katz, Thien Q. Phan, Lyle E. Levine, Thomas H. Gnaeupel-Herold

The microstructural evolution of laser powder-bed additively manufactured Inconel 625 during a post-build stress-relief anneal of 1 h at 870 °C is investigated. It is found that this industry-recommended heat treatment promotes the formation of a

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