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cff-version: 1.2.0 | ||
title: >- | ||
Efficient Materials Informatics between Rockets and | ||
Electrons | ||
message: >- | ||
If you use this software, please cite it using the | ||
metadata from this file. | ||
type: software | ||
authors: | ||
- given-names: Adam M | ||
family-names: Krajewski | ||
email: [email protected] | ||
affiliation: The Pennsylvania State University | ||
orcid: 'https://orcid.org/0000-0002-2266-0099' | ||
identifiers: | ||
- type: url | ||
value: 'https://arxiv.org/abs/2407.04648' | ||
description: arXiv | ||
repository-code: 'https://github.com/amkrajewski/PhD-Dissertation' | ||
abstract: >- | ||
The true power of computational research typically can lay | ||
in either what it accomplishes or what it enables others | ||
to accomplish. In this work, both avenues are | ||
simultaneously embraced across several distinct efforts | ||
existing at three general scales of abstractions of what a | ||
material is - atomistic, physical, and design. At each, an | ||
efficient materials informatics infrastructure is being | ||
built from the ground up based on (1) the fundamental | ||
understanding of the underlying prior knowledge, including | ||
the data, (2) deployment routes that take advantage of it, | ||
and (3) pathways to extend it in an autonomous or | ||
semi-autonomous fashion, while heavily relying on | ||
artificial intelligence (AI) to guide well-established | ||
DFT-based ab initio and CALPHAD-based thermodynamic | ||
methods. The resulting multi-level discovery infrastructure is | ||
highly generalizable as it focuses on encoding problems to | ||
solve them easily rather than looking for an existing | ||
solution. To showcase it, this dissertation discusses the | ||
design of multi-alloy functionally graded materials (FGMs) | ||
incorporating ultra-high temperature refractory high | ||
entropy alloys (RHEAs) towards gas turbine and jet engine | ||
efficiency increase reducing CO2 emissions, as well as | ||
hypersonic vehicles. It leverages a new graph | ||
representation of underlying mathematical space using a | ||
newly developed algorithm based on combinatorics, not | ||
subject to many problems troubling the community. | ||
Underneath, property models and phase relations are | ||
learned from optimized samplings of the largest and | ||
highest quality dataset of HEA in the world, called | ||
ULTERA. At the atomistic level, a data ecosystem optimized | ||
for machine learning (ML) from over 4.5 million relaxed | ||
structures, called MPDD, is used to inform experimental | ||
observations and improve thermodynamic models by providing | ||
stability data enabled by a new efficient featurization | ||
framework. | ||
keywords: | ||
- materials informatics | ||
- materials discovery | ||
- scientific computing | ||
- machine learning | ||
- artificial intelligence | ||
- database design | ||
- high entropy alloys | ||
- compositionally complex materials | ||
- functionally graded materials | ||
- extreme environments | ||
- hypersonics | ||
- data driven | ||
- thermodynamics | ||
- graphs | ||
- compositional spaces | ||
- python | ||
- nim | ||
- CALPHAD | ||
- HEA | ||
- FGM | ||
- ULTERA | ||
- pySIPFENN | ||
- MPDD | ||
- alloy design | ||
- inverse design | ||
license: CC-BY-NC-SA-4.0 |