Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Alexander D. Dupuy"'
Publikováno v:
Powders, Vol 3, Iss 1, Pp 28-43 (2024)
The low deposition efficiency in directed energy deposition (DED) has prompted the reuse of powders that do not fuse to the builds to make additive manufacturing more sustainable. It is unknown, however, how the properties of the powder and deposited
Externí odkaz:
https://doaj.org/article/b5672bf096644a378a578fd1206645e6
Publikováno v:
Open Ceramics, Vol 17, Iss , Pp 100544- (2024)
Mechanical characterization of ceramics is challenging, as the statistical nature of their strength requires numerous specimens to extract reliable distribution parameters. Here, we first propose a high-throughput testing procedure that allows extrac
Externí odkaz:
https://doaj.org/article/0e4124d80c224b3b85d69e22e5a300b8
Publikováno v:
Materials Research Letters, Vol 11, Iss 3, Pp 196-204 (2023)
Despite their vast composition space and promising properties, little is known about the fundamental mechanical behavior of high entropy oxides (HEOs). Here we provide experimental evidence of the nanoscale origin of room temperature deformation in (
Externí odkaz:
https://doaj.org/article/4e028188cdc14014b8a1a0486854e85d
Publikováno v:
Materials Research Letters, Vol 7, Iss 2, Pp 60-67 (2019)
High entropy oxide (HEO) materials display a reversible entropy-driven phase transformation that gives rise to a phase state consisting of the entropic single-phase and controllable volume fractions of a secondary phase, which we call the ‘phase sp
Externí odkaz:
https://doaj.org/article/5192b80990f546ba98ab61d634f2c772
Autor:
James C. Haley, Baolong Zheng, Umberto Scipioni Bertoli, Alexander D. Dupuy, Julie M. Schoenung, Enrique J. Lavernia
Publikováno v:
Materials & Design, Vol 161, Iss , Pp 86-94 (2019)
In Laser Directed Energy Deposition (L-DED), closed loop control systems can be used to enhance system reliability; however, modulating controlled parameters can have unintended secondary morphological and microstructural effects. To enable developme
Externí odkaz:
https://doaj.org/article/7b1d1adb9b6f4bcb9dfb40b389687a8b
Publikováno v:
Materials & Design, Vol 194, Iss , Pp 108847- (2020)
Additive manufacturing of Al alloys presents an opportunity to produce complex parts that leverage their high specific strength. This paper aims to study the effect of processing parameters on the fabrication of single tracks and thin walls using AlS
Externí odkaz:
https://doaj.org/article/5712c72457d047e09ec5832d3d913a2d
Publikováno v:
Journal of Materials Research, 38 (1), 198–214
The rocksalt structured (Co,Cu,Mg,Ni,Zn)O entropy-stabilized oxide (ESO) exhibits a reversible phase transformation that leads to the formation of Cu-rich tenorite and Co-rich spinel secondary phases. Using atom probe tomography, kinetic analysis, an
Autor:
Raphael Thiraux, Alexander D. Dupuy, Tianjiao Lei, Timothy J. Rupert, Ali Mohraz, Lorenzo Valdevit
Publikováno v:
Journal of the European Ceramic Society. 42:5893-5903
Publikováno v:
Journal of Materials Research. 37:124-135
High-entropy oxides (HEO) with entropic stabilization and compositional flexibility have great potential application in batteries and catalysis. In this work, HEO thin films were synthesized by pulsed laser deposition (PLD) from a rock-salt (Co0.2Ni0
Autor:
Elke Arenholz, Yayoi Takamura, Julie M. Schoenung, Padraic Shafer, Alexander D. Dupuy, I-Ting Chiu
Publikováno v:
Journal of the European Ceramic Society. 41:6660-6669
Entropy-stabilized oxides (ESO) display a reversible entropy-driven phase transformation that can be leveraged to produce a continuum of metastable phase states, allowing for property optimization and novel functionalities. X-ray absorption spectrosc