Results 61 to 70 of about 398,241 (340)

Highly processable bulk metallic glass-forming alloys in the Pt–Co–Ni–Cu–P system [PDF]

, 2004
Highly processable bulk metallic glass alloys in the Pt–Co–Ni–Cu–P system were discovered. The alloys show low liquidus temperature below 900 K, excellent processability with low critical cooling rate reflecting in maximum casting thicknesses in quartz ...
Johnson, William L., Schroers, Jan
core   +1 more source

Mechanically Deposited Wear‐Resistant Amorphous Zr55Cu30Al10Ni5 Coatings

Advanced Engineering Materials, EarlyView.
Mechanically deposited from glassy ribbons, the Zr55Cu30Al10Ni5 amorphous coating formed a hard, continuous layer on AISI 1010 steel, tripling substrate hardness, lowering friction, and reducing wear. Despite its rough surface, it showed friction and wear behavior comparable to the crystalline alloy, highlighting its strong potential as a durable ...
Tales Ferreira, Pietro Cazelatto Bortolini, André Luiz Vidilli, Paulo Wilmar Barbosa Marques, Jéferson Aparecido Moreto, Claudio Shyinti Kiminami, Walter José Botta, Claudemiro Bolfarini, Guilherme Yuuki Koga   +8 more
wiley   +1 more source

Experimental analysis and modeling of micro-texture and vickers hardness impact on polished stone value in high-friction aggregates

Frontiers in Materials
This article intends to study the influence of micro-texture and Vickers hardness on the Polished Stone Value (PSV) of four types of high friction aggregates (90# Bauxite, 75# Bauxite, Basalt, and Granite) during the long-term polishing process. For this
Zhenqing He, Jun Li, Juanni Nian, Bowen Guan   +3 more
doaj   +1 more source

Structural and Mechanical Properties of Nanocrystalline Fe60Al30Cu10 (at.%) Powders Prepared by Mechanical Alloying

Gazi Üniversitesi Fen Bilimleri Dergisi, 2019
In the present study, the nanostructured Fe(Al,Cu) solid solution was synthesized by mechanical alloying (MA) process of the elemental powders. The powder mixtures were milled in a planetary ball mill for various periods of time, up to 50 h.
Barış AVAR, Tuncay ŞİMŞEK, Musa GÖĞEBAKAN   +2 more
doaj   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

Thermodynamic aspects of materials' hardness: prediction of novel superhard high-pressure phases

, 2011
In the present work we have proposed the method that allows one to easily estimate hardness and bulk modulus of known or hypothetical solid phases from the data on Gibbs energy of atomization of the elements and corresponding covalent radii.
Aleshin V. G., Babichev A. P., Baron N. M., Bulakh A. G., Domnich V., Emsley J., Glushko V. P., Goble R. J., Gurvich L. V., Haines J., Knunyants I. L., Kurdyumov A. V., Mukhanov V. A., Novikov N. V., O. O. Kurakevych, Poliakov V. P., Povarennykh A. S., Rabinovich V. A., Teter D. M., Trim D. L., V. A. Mukhanov, V. L. Solozhenko   +21 more
core   +1 more source

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Surface modification of HVOF thermal sprayed WC–CoCr coatings by laser treatment [PDF]

, 2010
In this work the affects of laser characteristics on microstructure and microhardness of high velocity oxygen fuel sprayed (HVOF) WC–CoCr coatings were investigated.
A. Forn, AK Maiti, B Wielage, BE Bodger, BS Mann, D. Brabazon, E Cappelli, E. Chikarakara, G Barbezat, IM Hutchings, J Mateos, J. A. Picas, JKN Murthy, M. Punset, P Serra, RJK Wood, S. Aqida, S. Naher, SH Zhang, TY Cho   +19 more
core   +1 more source

Multipurpose Transparent Nanocomposites for Gamma Spectroscopy, Pulse Shape Discrimination, Thermal Neutron Detection, Radiation Shielding, and High Refractive Index Applications

Advanced Functional Materials, EarlyView.
Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi, Stephane Miaule, Robert Carmichael, Bowen Sun, Ziqing Han, Prabhav Surabhi, Zhen Luo, Noelan Hum, David Prout, Yi‐An Chen, Ting‐Hsuan Wu, Hao Yu, Arion Chatziioannou, Qibing Pei   +13 more
wiley   +1 more source

Graphene-bioactive glass composites: Structural, Vickers hardness, and gamma-ray attenuation characteristics

Frontiers in Materials, 2023
Introduction: Graphene-based materials have gained increasing attention for use in radiation attenuation applications. In this study, pristine graphene nanoplatelet-containing (1, 3, 5, and 10 wt%) borate-based bioactive glass composites were prepared ...
Aylin M. Deliormanli, Ghada ALMisned, Antoaneta Ene, H.O. Tekin, H.O. Tekin   +4 more
doaj   +1 more source