Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Michael J. Demkowicz"'
Autor:
Benjamin Derby, Yuchi Cui, JonKevin Baldwin, Raymundo Arróyave, Michael J. Demkowicz, Amit Misra
Publikováno v:
Materials Research Letters, Vol 7, Iss 1, Pp 1-11 (2019)
A new processing route has been discovered through which far-from-equilibrium, metastable architectures with unprecedented properties are synthesized. This novel architecture contains many orders of hierarchy with multiple concentration modulation wa
Externí odkaz:
https://doaj.org/article/bb9e14a55a0149fca272fe1bc0b86175
Autor:
John P. Hanson, Akbar Bagri, Jonathan Lind, Peter Kenesei, Robert M. Suter, Silvija Gradečak, Michael J. Demkowicz
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-11 (2018)
Exactly how hydrogen renders metals brittle is still unclear, and it remains a challenge to predict component failure due to hydrogen embrittlement. Here, the authors identify a class of grain boundaries in a nickel superalloy that deflects propagati
Externí odkaz:
https://doaj.org/article/06c49b1cca92439f895e5331373b3f9e
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
Abstract One way of expediting materials development is to decrease the need for new experiments by making greater use of published literature. Here, we use data mining and automated image analysis to gather new insights on nanoporous gold (NPG) with
Externí odkaz:
https://doaj.org/article/565ce7494fe94e449b5f6305a29d77a4
Publikováno v:
Metals, Vol 11, Iss 7, p 1010 (2021)
We investigated the effectiveness of severe plastic deformation by equal channel angular extrusion (ECAE) for consolidation of metal powders into metal matrix composites. Equal volumes of copper (Cu) and tantalum (Ta) powders were consolidated at amb
Externí odkaz:
https://doaj.org/article/3f85b7fe8c0b46f0b8ab2aaf0cb754f2
Publikováno v:
Materials Research Letters, Vol 5, Iss 5, Pp 335-342 (2017)
We describe a transmission electron microscopy investigation of the distribution of helium precipitates within the plane of an interface between Cu and V. Statistical analysis of precipitate locations reveals a weak tendency for interfacial precipita
Externí odkaz:
https://doaj.org/article/dd6f554de7934f60821f4473036fba6f
Autor:
Qing Su, Shinsuke Inoue, Manabu Ishimaru, Jonathan Gigax, Tianyao Wang, Hepeng Ding, Michael J. Demkowicz, Lin Shao, Michael Nastasi
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Despite recent interest in amorphous ceramics for a variety of nuclear applications, many details of their structure before and after irradiation/implantation remain unknown. Here we investigated the short-range order of amorphous silicon ox
Externí odkaz:
https://doaj.org/article/4a3337f3b56f48c7b34ab944f1f5b3c9
Publikováno v:
Metals, Vol 6, Iss 1, p 20 (2016)
Solid-state interfaces play a major role in a variety of material properties. They are especially important in determining the behavior of nano-structured materials, such as metallic multilayers. However, interface structure and properties remain poo
Externí odkaz:
https://doaj.org/article/646d72609c534d68b871632a1e3bf844
Autor:
Charles Borenstein, Brady G. Butler, James D. Paramore, Karl T. Hartwig, Michael J. Demkowicz
Publikováno v:
Materials Science and Engineering: A. 876:145000
Autor:
Michael J. Demkowicz, Zirui Mao
Publikováno v:
Journal of Materials Research. 36:2830-2842
A challenge in phase field modeling of phase-separating binary systems using the Cahn–Hilliard equation (CHE) is the determination of the mobility coefficient, which controls the kinetics of order parameter evolution. This work presents numerical s
Publikováno v:
Journal of Materials Research. 36:2277-2290
Indentation tests provide a facile route to gathering strength and stiffness information from small-scale samples, but typically have not been used to systematically assess distributions of surface plastic strain. The objective of the present work is