Results 51 to 60 of about 1,804,508 (349)

Topological Crystalline Insulators

, 2011
The recent discovery of topological insulators has revived interest in the topological properties of insulating band structures. In this work, we extend the topological classification of insulating band structures to include certain point group symmetry ...
Fu, Liang
core   +1 more source

Radiopaque Crystalline, Non-Crystalline and Nanostructured Bioceramics

Materials, 2022
Radiopacity is sometimes an essential characteristic of biomaterials that can help clinicians perform follow-ups during pre- and post-interventional radiological imaging. Due to their chemical composition and structure, most bioceramics are inherently radiopaque but can still be doped/mixed with radiopacifiers to increase their visualization during or ...
Maziar Montazerian, Geovanna V. S. Gonçalves, Maria E. V. Barreto, Eunice P. N. Lima, Glauber R. C. Cerqueira, Julyana A. Sousa, Adrine Malek Khachatourian, Mairly K. S. Souza, Suédina M. L. Silva, Marcus V. L. Fook, Francesco Baino   +10 more
openaire   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

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, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +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

Characteristics of Microcrystalline Cellulose from Coir Fibers

Journal of Natural Fibers, 2022
This work aimed to extract and characterize microcrystalline cellulose from coir fibers. Extraction was achieved in a two-step process in which the coir fibers were treated with sodium hydroxide for 3 h at 100°C followed by bleaching with peracetic acid ...
Joyline Gichuki, Patrick Gachoki Kareru, Anthony Ngure Gachanja, Catherine Ngamau   +3 more
doaj   +1 more source

Channeling of Positrons through Periodically Bent Crystals: on Feasibility of Crystalline Undulator and Gamma-Laser

, 2004
The electromagnetic radiation generated by ultra-relativistic positrons channelling in a crystalline undulator is discussed. The crystalline undulator is a crystal whose planes are bent periodically with the amplitude much larger than the interplanar ...
A. V. KOROL, A. V. SOLOV'YOV, Aganiants A. O., Andersen H. H., Andersen S. K., Avakian R. O., Avakian R. O., Avakian R. O., Baryshevsky V. G., Baryshevsky V. G., Baryshevsky V. G., Baurichter A., Bellucci S., Berestetskii V. B., Berman B. L., Biino C., Biruykov V. M., Biryukov V. M., Breese M. B. H., Colson W. B., Dedkov G. V., Denisov A. S., Fedorov V. M., Ginzburg V. L., Greenenko A. A., Greenenko A. A., Grigoryan L. Sh., Grigoryan L. Sh., Ikezi H., Kirsebom K., Korhmazyan N. A., Korhmazyan N. A., Korol A. V., Korol A. V., Korol A. V., Krause W., Kumakhov M. A., Kumakhov M. A., Landau L. D., Lindhard J., Mason W. P., Mikkelsen U., Mkrtchyan A. R., Motz H., Møller S. P., Solov'yov A. V., Sørensen A. H., Uggerhøj E., Uggerhøj E., Vodopianov A. S., W. GREINER, Zhang Q.-R., Zhevago N. K.   +52 more
core   +1 more source

Understanding the deformation mechanism of individual phases of a ZrTi-based bulk metallic glass matrix composite using in situ diffraction and imaging methods [PDF]

, 2014
The plasticity of a ZrTi-based bulk metallic glass composite consisting of glassy matrix and crystalline dendritic phase was studied in-situ under identical tensile loading conditions using scanning electron microscopy and synchrotron X-ray diffraction ...
Connolley, Thomas, Huang, Yongjiang, Khong, J. C., Mi, J.   +3 more
core   +2 more sources

Low-crystalline iron oxide hydroxide nanoparticle anode for high-performance supercapacitors

Nature Communications, 2017
Carbon materials are generally preferred as anodes in supercapacitors; however, their low capacitance limits the attained energy density of supercapacitor devices with aqueous electrolytes.
K. Owusu, Long Qu, Jiantao Li, Zhaoyang Wang, Kangning Zhao, Chao Yang, Kalele Mulonda Hercule, Chao Lin, Changwei Shi, Qiulong Wei, Liang Zhou, L. Mai   +11 more
semanticscholar   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Anodic oxide coatings with a hierarchical micronanostructure on sintered titanium powders

Конденсированные среды и межфазные границы, 2022
TiO2 nanotubes formed by electrochemical anodising of Ti (titanium foil) are normally X-ray amorphous. To improve their functional properties, they are usually converted into crystalline nanotubes by annealing at T ≈ 400–500 °С.
Natalia M. Yakovleva, Alisa M. Shul’ga, Irina V. Lukiyanchuk, Kristina V. Stepanova, Alexander N. Kokatev, Elena S. Chubieva   +5 more
doaj   +1 more source