Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Helen M. Chan"'
Publikováno v:
Results in Materials, Vol 14, Iss , Pp 100286- (2022)
In recent years, high entropy alloys (HEAs), also known has Multi-Principal Element Alloys (MPEAs) have emerged as a new and exciting class of materials. One of the first (and most widely studied) HEA compositions is that of the so-called Cantor allo
Externí odkaz:
https://doaj.org/article/f39147d57fb1472ca97a502f3d03cda4
Autor:
David R. Diercks, Jeffrey M. Rickman, Qian Wu, Zhiyang Yu, Helen M. Chan, Martin P. Harmer, Brian P. Gorman, Yan Wang
Publikováno v:
Journal of the American Ceramic Society. 104:514-523
Autor:
Christopher J. Marvel, Ankit Roy, Martin P. Harmer, Helen M. Chan, Joshua A. Smeltzer, Ganesh Balasubramanian, Jeffrey M. Rickman
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Nature Communications
Nature Communications
The field of multi-principal element or (single-phase) high-entropy (HE) alloys has recently seen exponential growth as these systems represent a paradigm shift in alloy development, in some cases exhibiting unexpected structures and superior mechani
Publikováno v:
Scripta Materialia. 157:34-38
Alumina powders were processed with 7.8 wt% CuO and post-sintering reduction heat-treatments were applied with the aim of producing metallic grain boundary complexions. The influence of titanium co-doping was also studied. Grain boundaries were chara
Publikováno v:
Acta Materialia. 222:117456
While solid-state reactions are employed for the processing of complex materials, the microstructural evolution that initiates from a compositionally inhomogeneous patterned structure has received little to no attention. For example, it has been reco
Autor:
Michael Robert Kracum, Martin P. Harmer, Helen M. Chan, Mihaela Albu, Ferdinand Hofer, Christopher J. Marvel
Publikováno v:
Journal of the American Ceramic Society. 101:5801-5810
Publikováno v:
Journal of Materials Science. 53:8193-8210
Metal–ceramic composites exhibit desirable combinations of materials properties, but are limited by the complexity of processing, particularly for metal–ceramic nanocomposites. The in situ partial reduction technique is a simple processing method
Autor:
Christopher J. Marvel, Kristopher A. Darling, B. Chad Hornbuckle, Helen M. Chan, Martin P. Harmer, Anit K. Giri, Joshua A. Smeltzer
Publikováno v:
Acta Materialia. 211:116884
Most attempts to improve the properties of high entropy alloys (HEAs) involve the exploration of non-equimolar compositions, addition of alloying elements, and/or manipulation of the microstructure. Alternatively, this work reports on intentionally d
Autor:
Jeffrey M. Rickman, Christopher J. Marvel, M.-T. Burton, Helen M. Chan, Ganesh Balasubramanian
Publikováno v:
Journal of Applied Physics. 128:221101
The study of high-entropy (HE) alloys has seen dramatic growth in recent years as, in some cases, these systems can exhibit exceptional properties, including enhanced oxidation resistance, superior mechanical properties, and desirable magnetic proper
Publikováno v:
Surface Science. 651:1-4
We employ semi-grand canonical Monte Carlo simulation to investigate layering transitions at grain boundaries in a prototypical binary alloy. We demonstrate the existence of such transitions among various interfacial states and examine the role of el