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CITATION.cff
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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: adam@phaseslab.org
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