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Embracing entropy in glass-ceramics
Ceramics International. 2024. Vol. 50. No. 17, Part A. P. 29178–29184.
Ahmad Ostovari Moghaddam, Fereidonnejad R., Shaburova N., Mehrabi-Kalajahi S., Alizadeh M., Cabot A., Trofimov E.
Glass-ceramics have extensive industrial applications owing to their superior mechanical, optical and physicochemical properties compared to either glasses or ceramics. Herein, we leverage the concept of high entropy materials to broaden the available chemical compositions for tailoring the properties of glass-ceramics. Among various compositions explored, the high entropy glass 45SiO2-20Al2O3-15MgO-11Li2O-1.5TiO2-1.5ZrO2-2P2O5-2BaO-SnO2-CaO was identified as particularly promising, being easily cast with no pores and cracks. Furthermore, we successfully controlled the crystallization process to produce high entropy glass-ceramics (HEGCs) that range from highly transparent to highly opaque. The concurrent crystallization of γ-spodumene and cordierite led to exceptional mechanical properties such as high Vickers microhardness (10.37 GPa), compressive strength (541 MPa), and flexural strength (305 MPa). These findings not only showcase a novel approach to customizing the chemical composition of glass-ceramics, but also suggest the potential emergence of a new class of glass-ceramics. These materials hold great promise for dental, optoelectronics and energy-related applications.
Сказочкин А. В., Бондаренко Г.Г., Гайдар А. И. et al., Перспективные материалы 2026 № 11 С. 60–75
Рассмотрены механизмы структурно-фазовой перестройки и физико-химические
процессы при формировании износостойких и коррозионно-пассивных покрытий на
чугуне ВЧ40 комбинированной технологией, сочетающей ультразвуковое пластическое
деформирование и электроискровое легирование (ЭИЛ). Образцы модифицировали
ультразвуковым индентором (УЗИ) в среде микрочастиц SiO2 (5 мкм) под давлением
400 МПа с последующим ЭИЛ графитовым и твердосплавным (ВК8) электродом. Структуру,
состав и микротвердость изучали методами сканирующий электронный микроскопии
совмещенной с энергодисперсионной рентгеновской ...
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Dmitriev A., Kornilov V., Batienkov R., Lecture Notes in Civil Engineering 2026 Vol. 886 P. 249–255
Numerous studies have provided compelling evidence that the probability distribution of avalanche sizes follows a power law, and that 1/f noise is present in the stochastic dynamics of landslides. We present a theoretical explanation of these phenomena within the framework of self-organized criticality theory, proposing a discrete-time model in the form of a sandpile cellular ...
Added: October 13, 2026
Dmitriev A., Shulman I., Lebedev A., Studies in Computational Intelligence 2026 Vol. 1265 P. 266–273
A discrete-time model is presented for the self-organization of the X/Twitter social network to the edge of a phase transition, characterized by avalanche-like propagation of information in the network. The model is based on the analogy between the critical dynamics of the X social network and sandpile cellular automata with Manna rule on the Chung-Lu ...
Added: October 13, 2026
Arutyunov K., Kharitonov I. A., Petrosyants K. O., JETP Letters 2026 Vol. 124 No. 6 P. 1–16
Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I–V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like ...
Added: October 13, 2026
Makarov D. M., Kalikin N., Fashchevsky K. A. et al., Electrochimica Acta 2026 Vol. 579 Article 150159
Machine learning (ML) has become a powerful tool for accelerating the development of carbon-based supercapacitors;
however, most published models assume that a single predictive framework can describe both conventional
porous carbons and hybrid carbon electrodes. Here, we test this assumption using a comprehensive
benchmark dataset and an extended literature-curated dataset enriched with synthesis- and electrolyte-related
descriptors. Three ML algorithms ...
Added: October 13, 2026
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This paper compares the ranging precision of direct time-of-flight (dToF) and non-line-of-sight (NLOS) LiDAR architectures, both using a superconducting nanowire single-photon detector (SNSPD). Both systems operate at 1550 nm with a 50 ps pulsed laser and time-correlated single-photon counting (TCSPC). The dToF configuration achieved approximately 100 µm precision at 10 m, while the NLOS configuration achieved 500 µm precision for ...
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Filippova A. V., Yurchenko N. Y., Smirnov S. A. et al., Journal of Alloys and Compounds 2026 No. 1074 Article 189162
This study investigates the effects of post-processing heat treatment at 300–500 °C on the microstructure, hardness, and tensile properties of laser powder bed fusion (PBF-LB) processed Al-bronze processed with energy densities (ED) in the range of 125–938 J/mm3. In the as-printed state, sharp needle-like α + β′ laths form at lower ED whereas with increasing ED, the β′ ...
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Садртдинова Г. И., Vinogradov A., Nifantiev I. et al., Polymer 2025 Vol. 339 Article 129133
Isotactic copolymerization of but-1-ene with bio-based undec-10-en-1-ol (M1), dec-9-en-1-ol (M2) and their silyl esters (M3–M5), catalyzed by C1-symmetric ansa-heterocene [Me2Si(η5-2,4,7-trimethelinden-1-yl)(η5-2,5-dimethyl-7H-cyclopenta[1,2-b:4,3-b']dithiophen-7-yl)]ZrCl2 (Zr1), activated by iBu3Al and MMAO-12, was explored for the first time. At [AlMMAO]/[Zr1] = 40 and [Monomer]/[Zr1] = 5,000, iBu2Al-protected ω-alken-1-ols have demonstrated highest activities and up to 16.7 mol% degrees of the comonomer incorporation with a formation of ...
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Zhavoronok E. S., Lenkova K. A., Matrenina A. V. et al., Protection of Metals and Physical Chemistry of Surfaces 2025 Vol. 61 No. 5 P. 1231–1238
This study investigated two groups of surgical suture materials—nonabsorbable (polyethylene terephthalate,
polyamide, and silk) and absorbable (glycolic/lactic acid copolymer)—before and after accelerated aging. The analysis employed tensile strength testing, Fourier-transform infrared (FTIR) spectroscopy, and differential scanning calorimetry (DSC). Following domestic and international standards for polymer aging, the samples were subjected to the following initial accelerated aging ...
Added: February 19, 2026
Легонькова О. А., Стаффорд В. В., Винокурова Т. И. et al., Физикохимия поверхности и защита материалов 2025 Т. 61 № 2 С. 196–206
Проведены обобщающие сравнительные исследования по изменению поверхностных, физико-механических свойств биорезорбируемых нитей in vitro и in vivo, реакции тканей на использование шовных материалов с разными сроками биодеструкции: сополимер лактида с гликолидом (ПГЛ), полидоксанон (ПДО), сополимер гликолида и ε-капролактона (ПГК). Определена причина возникновения возможной воспалительной реакции тканей. Процесс биодеструкции для всех нитей начинается с поверхности, сопровождается “выщелачиванием” ...
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Rumyantsev M. S., Kalagaev I. Y., I. N. Senchikhin, Macromolecules 2025 Vol. 58 No. 5 P. 2574–2588
The search for chemical and technological solutions to process cheap and available elemental sulfur to produce valuable multifunctional materials is one of the current challenging tasks. Instead of extensively used low-molecular-weight monomers, we proposed to use the original reactive polyalkylene sulfide resin as an alternative reagent containing pendant methacrylic groups. The use of a reactive ...
Added: February 19, 2026
Сысоэв, Э., Bashirov I., Sychov M. et al., ACS Applied Materials & Interfaces 2025 Vol. 17 No. 22 P. 33108 – 33120
Added: November 12, 2025
Shavlovich A. V., Reshetov I., Tagantsev D. et al., Journal of Physics: Condensed Matter 2024 Vol. 36 No. 21 Article 21LT01
Two sodium phosphate glasses with different structure (meta- and orthophosphate ones) were thermally poled well below the glass transition temperatures. Glass with an orthophosphate structure (glass LA30) demonstrated a typical behavior of polarization current, that is, monotonic current decrease; however, in glass with a metaphosphate structure (glass LA10) the current first increased for 15–20 min and only then started ...
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Gleb Vaganov, Didenko A., Popova E. et al., Polymer Engineering and Science 2025 Vol. 65 No. 8 P. 4314–4322
This study investigates the correlation between the molecular weight of semicrystalline polyimide and the properties of injec-tion moldings based on it. It was found that the degree of crystallinity can be increased by annealing of molding. The molecularweight of polyimide materials directly influences their glass transition temperature. An increase in molecular weight leads toa decrease ...
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Nechvoglod O., Ostovari Moghaddam A., Pratskova S. et al., The Minerals, Metals & Materials Society 2025 Vol. 77 P. 1005–1028
This work provides an overview on the fabrication process, composition and properties of high-entropy alloy (HEA) coatings fabricated by electrodeposition. Special attention is paid to the effect of electrodeposition parameters and electrolyte composition on the microstructure, morphology, and mechanical/functional properties of the HEA coatings. It is demonstrated that the majority of researches has been focused ...
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Naseri M., Reihanian M., Ostovari Moghaddam A. et al., Journal of Materials Research and Technology 2023 Vol. 26 P. 6794–6806
Increasing the strength of metallic multilayered composites fabricated through accumulative roll bonding (ARB) is typically accompanied by a sacrifice in ductility. In the current work, we propose a strategy to achieve microstructural refinement and outstanding strength-ductility synergy in Al/Brass composites. Here, the aluminum matrix exhibits a bimodal grain distribution, consisting of fine equiaxed grains with ...
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Ostovari Moghaddam A., Fereidonnejad R., Cabot A., Journal of Alloys and Compounds 2023 Vol. 960 Article 170802
Intermetallic compounds (ICs) have been actively investigated since the early twentieth century due to their high strength, especially at high temperatures, as well as a variety of other complex features. However, lack of ductility at ambient temperature has continually hampered their practical applications. In recent years, the concept of entropy stabilization in multicomponent materials or ...
Added: February 18, 2025
Naseri M., Ahmad Ostovari Moghadam, Anandkumar M. et al., JOURNAL OF ALLOYS AND METALLURGICAL SYSTEMS 2024 Vol. 5 Article 100054
High-entropy alloys (HEAs) are one of the breakthroughs in the past decade in alloy development that have the potential to exhibit outstanding physical, mechanical, and chemical properties. This allows HEAs to be highly versatile materials for use in a variety of applications. Through reasonable composition design and post-manufacturing processes, HEAs can show superior properties compared ...
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Naseri M., Reihanian M., Ahmad Ostovari Moghaddam et al., Metals and Materials International 2024 Vol. 30 P. 412–424
This study examined mechanical properties of AA2024 alloy and its correlation between strain path and crystallographic texture. Accumulative roll bonding (ARB) and cross accumulative roll bonding (CARB) were used to severely deform AA2024 alloys. Electron backscatter diffraction (EBSD) studies demonstrated that nano/ultrafine grains were formed by the strain routes after eight cycles. It was also ...
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Naseri M., Ahmad Ostovari Moghaddam, Shaburova N. et al., Materials Today Communications 2024 Vol. 38 Article 108036
In the present work, Al0.25CoCrFeNiCu and Al0.45CoCrFeNiSi0.45 high entropy alloys (HEAs) were fabricated by induction melting and then subjected to severe cold rolling (SCR) to induce an ultrafine lamellar microstructure. By using electron back scattered diffraction (EBSD) analysis, the microstructural features of the SCR processed HEAs were determined to be deformation bands, severely pancaked grains, and a refined lamellar microstructure. The ...
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Kushnir S., Devyanina N., Roslyakov I. et al., The Journal of Physical Chemistry Letters 2024 Vol. 15 No. 1 P. 298–306
A combination of the unique porous structure and physical and chemical properties of anodic aluminum oxide (AAO) makes it widely used in cutting-edge areas of materials science and nanotechnology. Selenic acid electrolyte provides the ability to obtain AAO with low porosity and high optical transparency and thus is promising for the preparation of AAO photonic ...
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Ильина Е. А., Язык и культура в эпоху интеграции научного знания и профессионализации образования 2023 № 1(4) С. 68–73
В докладе рассматривается вопрос об изменении характера научного стиля речи в постнеклассический период. Показано, что в научно-речевых произведениях нынешнего периода тенденция к выбору наиболее отвлеченных грамматических единиц проявляется еще отчетливее, чем в научной литературе второй половины XX столетия. Тем самым продолжается процесс кристаллизации одной из важнейших стилевых черт научной речи – её отвлеченности и обобщенности. ...
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Кищик А. А., Aksenov S. A., Кищик М. С. et al., Физика металлов и металловедение 2023 Т. 124 № 6 С. 540–549
The effects of isothermal multidirectional forging (IMF) on the grain structure, second-phase particles of solidification origin, and dispersoids in the Al–4.9Mg–0.9Ni–0.9Fe–0.2Zr–0.1Sc alloy have been
investigated. The strain distribution over the sample volume during forging in a closed die has been analyzed
using a finite-element simulation. A method of considering the friction effect and changes in strain rate ...
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Синицын В. В., Rybchenko O., Ефимов В. Б. et al., Физика твердого тела 2023 Т. 65 № 8 С. 1307–1313
The article presents experimental studies of structural changes that occur during heating of nanosized powders of amorphous ice obtained by decay of a water-helium gel. Thermal annealing of the obtained samples was carried out by short exposures (about 15 minutes) at different temperatures in the range of 110-230K. The behavior of the amorphous phase during ...
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