UC San Diego engineering professor and materials science
pioneer Olivia Graeve’s research team has a new paper out that reports on work
that will be used to help materials scientists develop higher quality materials
for use in many applications including super-durable solar cells, ultra-hard
metals for space exploration, better infrared optical fibers for carrying
digital information, and materials for new kinds of biomedical devices like
self-expanding stents.
The paper was published by PLOS ONE on June 22, 2020.
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A schematic representation of the team’s DSC-based
methodology
for determination of the change of crystallinity and
crystallinity
percentage as a function of temperature.
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In this particular paper, the researchers present a new
method for calculating the initial crystallinity, change of crystallinity and
crystallinity percentage of amorphous metal alloys as a function of
temperature. The first author on the paper is Arash Yazdani who is finishing
his PhD at UC San Diego in Professor Graeve's lab.
"This is exciting materials science work that will have
an impact in the field," said Graeve. “We all live in this world in which
materials science plays a role in nearly everything we do. We all benefit from
the materials science breakthroughs yet to be developed. If you think you're
interested in this kind of work, pursue it. Don't leave it up to others to do
the work. There is a place for everyone in materials science.”
The methods presented in this paper are particularly
interesting because the behavior of amorphous materials for use in exciting
applications often depends on the partial crystalline nature of the materials.
Creating materials with properties such as ultra-hardness or super-resistance
to corroding often depends on being able to characterize and control
crystallinity, and that's what this research is working toward.
Paper info
"A Method to Quantify Crystallinity in Amorphous Metal
Alloys: A Differential Scanning
Calorimetry Study," in PLOS.
Authors: Arash Yazdani (1), Günther W.H. Höhne (2), Scott T.
Misture (3), Olivia A. Graeve (4)
1 Department
of Mechanical and Aerospace Engineering
University of California, San Diego
9500 Gilman Drive – MC 0411
La Jolla, CA 92093-0411, USA
2 University
of Ulm
Helmholtzstraße 16, 89081 Ulm, Germany
3 Kazuo
Inamori School of Engineering
Alfred University
2 Pine Street, Alfred, NY 14802, USA
