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Opportunity at National Institute of Standards and Technology (NIST)

Diffusion in Advanced Materials

Location

Material Measurement Laboratory, Materials Science and Engineering Division

RO# Location
50.64.21.B6790 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

name email phone
Carelyn E. Campbell carelyn.campbell@nist.gov 301.975.4920

Description

Calphad-type models have been successfully employed to describe composition-dependent diffusion mobilities in a variety of disordered metallic systems and are currently being developed for a variety of ordered metallic systems. These composition dependent mobility descriptions can then be used in conjunction with multicomponent thermodynamic descriptions to model diffusion processes in a variety of disordered and ordered metallic systems. The next challenge is to model the diffusion mobilities in complex materials where a Calphad-type approach must be combined with mechanistic models that describe the specific microstructure elements. A variety of inputs from both experimental work and simulations (i.e., first principle, atomistic, and/or molecular dynamic calculations) will be needed to develop these types of models. Some of the complex material systems of interest are metallic glasses, nanocrystalline metals, hydrogen storage materials, photovoltaic materials, and heavily deformed metals.

Lindwall, G., Moon, KW., Williams, M. et al. Development of a Diffusion Mobility Database for Co-Based Superalloys. J. Phase Equilib. Diffus. 43, 931–952 (2022). https://doi.org/10.1007/s11669-022-01011-1 

Keywords:
Calphad; Diffusion mechanisms; Multicomponent diffusion;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants

Stipend

Base Stipend Travel Allotment Supplementation
$74,950.00 $3,000.00
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