E
Eric A. Lass
Researcher at National Institute of Standards and Technology
Publications - 61
Citations - 3200
Eric A. Lass is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Superalloy & Alloy. The author has an hindex of 24, co-authored 58 publications receiving 2431 citations. Previous affiliations of Eric A. Lass include Rensselaer Polytechnic Institute & Government of the United States of America.
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Journal ArticleDOI
Miniaturized gas ionization sensors using carbon nanotubes
TL;DR: The fabrication and successful testing of ionization microsensors featuring the electrical breakdown of a range of gases and gas mixtures at carbon nanotube tips are reported, enabling compact, battery-powered and safe operation of such sensors.
Journal ArticleDOI
Application of Finite Element, Phase-field, and CALPHAD-based Methods to Additive Manufacturing of Ni-based Superalloys.
Trevor Keller,Greta Lindwall,Supriyo Ghosh,Li Ma,Brandon M. Lane,Fan Zhang,Ursula R. Kattner,Eric A. Lass,Jarred C. Heigel,Yaakov Idell,Maureen E. Williams,Andrew J. Allen,Jonathan E. Guyer,Lyle E. Levine +13 more
TL;DR: Numerical simulations are used in this work to investigate aspects of microstructure and microseg-regation during rapid solidification of a Ni-based superalloy in a laser powder bed fusion additive manufacturing process.
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Additive Manufacturing of 17-4 PH Stainless Steel: Post-processing Heat Treatment to Achieve Uniform Reproducible Microstructure
TL;DR: In this paper, the effect of post-build thermal processing on the material microstructure was studied in comparison to that of conventionally produced wrought 17-4 precipitation hardenable (PH) stainless steel with the intention of creating a more uniform, fully martensitic micro-structure.
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Effect of heat treatment on the microstructural evolution of a nickel-based superalloy additive-manufactured by laser powder bed fusion.
Fan Zhang,Lyle E. Levine,Andrew J. Allen,Mark R. Stoudt,Greta Lindwall,Eric A. Lass,Maureen E. Williams,Yaakov Idell,Carelyn E. Campbell +8 more
TL;DR: It is demonstrated that a subsequent homogenization heat treatment can effectively homogenize the AM alloy and remove the deleterious δ phase, and the combined experimental and modeling methodology can be extended to elucidate the phase evolution during heat treatments in a broad range of AM materials.
Journal ArticleDOI
Miniaturized Gas Ionization Sensors Using Carbon Nanotubes.
TL;DR: In this article, the sharp tips of nanotubes generate very high electric fields at relatively low voltages, lowering breakdown voltages several-fold in comparison to traditional electrodes, and thereby enabling compact, battery-powered and safe operation of such sensors.