Results 31 to 40 of about 80,665 (303)

Influence of Milling Time on Amorphization of Mg-Zn-Ca Powders Synthesized by Mechanical Alloying Technique [PDF]

Archives of Metallurgy and Materials, 2018
Mg60Zn35Ca5 amorphous powder alloys were synthesized by mechanical alloying (MA) technique. The results of the influence of high-energy ball-milling time on amorphization of the Mg60Zn35Ca5 elemental blend (intended for biomedical application) were ...
S. Lesz, K. Gołombek, M. Kremzer, R. Nowosielski   +3 more
doaj   +1 more source

Nanostructured Zinc Oxide as a Prospective Room Temperature Thermoelectric Material

, 2012
Nanostructured Zinc oxide (ZnO) was synthesized via a ball milling for 10 hours using high energy planetary ball mill. Phase purity and homogeneity of all the samples have been investigated by X-ray diffraction (XRD) and Field Emission Scanning Electron ...
Kar, M., Kumar, Pawan, Sanchela, Anup V., Thakur, Ajay D., Tomy, C. V.   +4 more
core   +1 more source

Li Ion diffusion in nanocrystalline and nanoglassy LiAISi2O 6 and LiBO2 - Structure dynamics relations in two glass forming compounds [PDF]

, 2009
In the present study the Li diffusivity in nanostructured samples of two glass forming model systems, spodumene (LiAlSi2O6) and lithium metaborate (LiBO2), was examined using 7Li nuclear magnetic resonance (NMR) spin-lattice relaxometry and dc ...
Heitjans, Paul, Kuhn, Alexander, Tobschall, Esther   +2 more
core   +2 more sources

Nanoscale grains, high irreversibility field, and large critical current density as a function of high energy ball milling time in C-doped magnesium diboride

, 2007
Magnesium diboride (MgB2) powder was mechanically alloyed by high energy ball milling with C to a composition of Mg(B0.95C0.05)2 and then sintered at 1000 C in a hot isostatic press. Milling times varied from 1 minute to 3000 minutes.
B J Senkowicz, D C Larbalestier, E E Hellstrom, Evetts J, Hossain M S A, J Jiang, Jiang J, Matsumoto A, P M Voyles, R J Mungall, Rodrigues D, Rowell J M, Senkowicz B J, Senkowicz B J, Wilke R H T, Wilke R H T, Y Zhu, Yamada H   +17 more
core   +1 more source

Hydrogen Motion in Magnesium Hydride by NMR [PDF]

, 2008
In coarse-grained MgH2, the diffusive motion of hydrogen remains too slow (
Bormann, Rüdiger, Bowman, Robert C., Jr., Carl, Erik A., Conradi, Mark S., Corey, Robert L., Dornheim, Martin, Huot, Jaques, Ivancic, Timothy M., Shane, David T., Stowe, Ashley C., von Colbe, Jose M. Bellosta, Zidan, Ragaiy   +11 more
core   +1 more source

Effect of Mechanical Activation on the In Situ Formation of TiB2 Particulates in the Powder Mixture of TiH2 and FeB

Archives of Metallurgy and Materials, 2017
The in situ formation of TiB2 particulates via an interface reaction between Ti and FeB powders was studied. The effects of mechanical activation by high-energy milling on the decomposition of TiH2 and the interface reactions between Ti and FeB powders ...
Huynh X.-K., Kim B.-W., Kim J.S.
doaj   +1 more source

Two-phase coexistence in Fe–Ni alloys synthesized by ball milling [PDF]

, 1996
We used mechanical alloying with a Spex 8000 mixer/mill to synthesize a series of Fe100–xNix alloys from x=0 to x=49. The Spex mill was modified so that it could also operate at a reduced milling intensity, and we compared the alloys synthesized after ...
Fultz, B., Hong, L. B.
core   +1 more source

Antimony-doped graphene nanoplatelets [PDF]

, 2015
Heteroatom doping into the graphitic frameworks have been intensively studied for the development of metal-free electrocatalysts. However, the choice of heteroatoms is limited to non-metallic elements and heteroatom-doped graphitic materials do not ...
A Fasolino, A Ramelan, AA Balandin, AB Stambouli, C Zhang, C-M Gong, D Geng, H Liu, I-Y Jeon, I-Y Jeon, I-Y Jeon, I-Y Jeon, J Chen, J Greeley, J Liang, JK Nørskov, JP Collman, JW Cogswell, K Schoots, KN Kudin, KP Gong, KS Kim, L Qu, MD Stoller, MP Seah, R Bashyam, R Liu, RC Saxena, S Bae, S Jacobsson, S Wang, S Yang, T Krishnakumar, T Xing, T Yu, TO Wehling, W Sheng, WE Swartz Jr, WS Hummers Jr, X Sun, X Wang, Y Bing, Y Liang, YD Wang, Z Jin, Z Yang, Z-H Sheng, ZQ Li   +47 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Dissociating stable nitrogen molecules under mild conditions by cyclic strain engineering [PDF]

, 2019
All quiet on the nitrogen front. The dissociation of stable diatomic nitrogen molecules (N-2) is one of the most challenging tasks in the scientific community and currently requires both high pressure and high temperature.
Baek, Jong-Beom, Han, Gao-Feng, Im, Yoon-Kwang, Jeon, Jong-Pil, Jiang, Qing, Kim, Chul Sung, Kim, Jeonghun, Kim, Seok-Jin, Li, Feng, Noh, Hyuk-Jun, Shi, Xiang-Mei, Uhm, Young Rang   +11 more
core   +1 more source