Results 41 to 50 of about 39,928 (301)
Ultrahigh high-strain-rate superplasticity in a nanostructured high-entropy alloy
Nature Communications, 2020 Superplasticity at high strain rates is challenging to achieve in high strength materials. Here, the authors show superplastic elongation in excess of 2000% in a high entropy alloy nanostructured by high-pressure torsion.
Nhung Thi-Cam Nguyen +5 more
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Obstacles to applications of nanostructured thermoelectric alloys [PDF]
Frontiers in Chemistry, 2014 A major theme in thermoelectric research is based on controlling the formation of nanostructures that occur naturally in bulk intermetallic alloys through various types of thermodynamic phase transformation processes (He et al., 2013). The question of how such nanostructures form and why they lead to a high thermoelectric figure of merit (zT) are ...
Sharma, Peter A., Sugar, Joshua D.
openaire +3 more sources
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
Galvanic Corrosion of Ti Dental Implants Coupled to CoCrMo Prosthetic Component
International Journal of Biomaterials, 2021 Dental implant systems are composed of an implant, prosthetic components, and a crown. Since the implants are made of commercially pure Ti (cp Ti) and prosthetic components are often made of Ti and CoCrMo alloys, a galvanic couple between these two ...
Francielly M. S. Soares +4 more
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Nano-fiber-structured Cantor alloy films prepared by sputtering
Journal of Materials Research and Technology, 2022 High entropy alloy films (HEAFs) have received increasing attention in recent years due to their excellent properties, such as high wear resistance, corrosion resistance, magnetic and optical properties. By using Direct Current (DC) magnetron sputtering,
Yuanying Yue, Xuehui Yan, Yong Zhang
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Kinetics governing phase separation of nanostructured Sn_xGe_(1–x) alloys [PDF]
, 2006 We have studied the dynamic phenomenon of Sn_xGe_(1–x)/Ge phase separation during deposition by molecular beam epitaxy on Ge(001) substrates. Phase separation leads to the formation of direct band gap semiconductor nanowire arrays embedded in Ge oriented
Atwater, Harry A. +4 more
core +1 more source
Processing for nanostructured alloys.
Journal of Advanced Science, 2002 Nanostractural alloys have attracted growing interest because of their potential properties. The recent studies on nanostructured alloys imply the reality of alloy designing without restriction by the equilibrium phase diagram. We review recent results in new alloys developed by mechanical alloying technique and emphasize their potentiality as future ...
openaire +2 more sources
Accelerated sintering in phase-separating nanostructured alloys [PDF]
Nature Communications, 2015 AbstractSintering of powders is a common means of producing bulk materials when melt casting is impossible or does not achieve a desired microstructure, and has long been pursued for nanocrystalline materials in particular. Acceleration of sintering is desirable to lower processing temperatures and times, and thus to limit undesirable microstructure ...
Park, Mansoo, Schuh, Christopher A.
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
A Magnetic and Moessbauer Spectral Study of Core/Shell Structured Fe/Au Nanoparticles
, 2005 Fe/Au nanoparticles have been chemically synthesized through a reverse micelle reaction and investigated by both conventional and synchrotron based x-ray diffraction and by magnetic and Moessbauer spectral studies.
Cho, Sung-Jin +6 more
core +1 more source