Materials Literature
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Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce i na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę i kulturę techniczną.
Cardiovascular disease remains the leading cause of mortality worldwide, and aortic valve disease is becoming increasingly prevalent as populations age. Despite this growing demand, current clinical valve replacements still suffer from limited durability, with valve deterioration detectable as early as 5 years post im…
This repository contains a dedicated Python analysis script (Jupyter Notebook / Google Colab format) for automated Scanning Electron Microscopy (SEM) image analysis, dual-phase segmentation, and spatial dispersion mapping of multiphase polymer nanocomposites. The codebase automates the quantitative microstructural cha…
English Version This project presents the complete theoretical and experimental framework of the Ice Crystal Battery (ICB) —— a novel self-powered energy storage system based on the ordered hydrogen-bond network of Ice XXI (ice XXI) lattice, enabled by Site-Responsive Chemical Cultivation as a new material constructio…
Graphene has rapidly attained a prominent position in materials science and condensed-matter physics research. This strictly two-dimensional, atomically thin material exhibits outstanding crystalline quality and exceptional electronic properties. Despite its relatively short history in scientific investigation, graphe…
ABSTRACT The detection of Néel vector switching in a single‐layer A‐type antiferromagnet marks an important step toward functional two‐dimensional spintronics. Here, ‐2D, grown on graphene on Ir(110), is established as a first single‐layer A‐type antiferromagnet. Spin‐polarized scanning tunneling microscopy reveals hy…
This thesis contains works on polypeptide hydrogels for tissue engineering. Although synthetic, their derivation from amino acids grants biocompatibiltiy with increased mechanical performance when compared to natural alternatives. The synthesis of the polypeptides was altered to faciley change the method of 3D printin…
The global plastic pollution crisis demands a fundamental re-evaluation of materials systems beyond incremental improvements to fossil fuel-based polymers. Bioplastics, polymers derived from renewable biological feedstocks, biodegradable under defined conditions, or both, offer a chemically diverse and rapidly evolvin…
Conventional superconductivity models, notably the Bardeen-Cooper-Schrieffer (BCS) theory, rely heavily on phonon-mediated electron pairing within continuous thermodynamic frameworks, often failing to explain unconventional or high-temperature superconducting anomalies in complex crystal lattices. Building upon the En…
This study investigates the high-temperature cyclic oxidation behavior of low-carbon steel coated with Al–FeCr–SiC and Al–FeCr–B 4 C composite coatings prepared by mechanical milling followed by vacuum annealing at 600, 700, and 800 °C for 2 h. Annealing promoted microstructural consolidation and phase evolution, incl…
DRAM capacitor dielectrics face a hard leakage×EOT scaling constraint below the 1z-nm node (IMW 2020); for 30 years industry has responded by doping-pinning the tetragonal phase of high-k dielectrics (ZrO₂/HfO₂-based) to stabilize it—yet this long-standing practice lacks a unified criterion language. Using a field-the…
تحلیل بنیادین، بازنویسی تانسوری و اثبات جامعِ کامل پارادوکس فرمیونهای بدون جرم و چگالی جریان فوقشدید در نانومواد نیمهفلز وایل (The Massless Weyl Fermion Paradox and Ultra-High Current Density in Nanoscale Weyl Semimetals - معمای شماره ۳۰ از ۱۰۰) در بستر فیزیک اطلاعات حمزه (HIP-1155) به شرح زیر است: ۱. مقدمه و معمای…
ABSTRACT The viscoelastic response of crosslinked rubber was investigated using coarse‐grained molecular dynamics simulations combined with time‐temperature superposition. Crosslinked polymer networks containing different numbers of crosslinkers were generated using a dynamic reaction probability model and their mecha…
Organic long persistent luminescence (OLPL) materials are at the forefront of research, undergoing rapid evolution due to their extensive potential applications. The realization of hour-level OLPL, particularly an air-stable one, remains a significant challenge. Here, we developed a new platform to achieve long-term a…
Metal oxide thin film gas sensors have got wide acceptance due to their sensitivity, stability, rapid response-recovery, mechanical and thermal stability, repeatability, reproducibility, crystallinity etc. In the present work pristine and polyaniline (PANI) incorporated SnO 2 thin films were successfully fabricated by…
Gas sensors are extremely important because of their broad application in industrial production and everyday life. However, many conventional gas sensors require high operating temperatures and are fabricated from non-biodegradable materials, leading to increased energy consumption and disposal concerns. To address th…
This paper develops a revised mathematical solution framework for the chemistry challenge "Can autonomous laboratories discover catalysts and operating waveforms together rather than optimizing them separately?". The proposed Mixed-Variable Autonomous Catalyst Search Model (MACSM) was constructed after an earlier form…
Rare-earth-promoted transition metal oxides have attracted significant attention owing to their ability to modify structural, textural, and surface characteristics of functional ceramic materials. In the present work, lanthanum and nickel co-doped oxide systems supported on alumina (Al2O3) and silica (SiO2) were synth…
Abstract Graphene quantum dots (GQDs) and their nitrogen-doped counterparts (N-GQDs) have recently been explored in the management of neurological disorders. However, their biocompatibility remains questionable, particularly subsequent to direct brain exposure. In this study, we investigated the neurotoxicity of GQDs…
FINDING: Five-fold rotational symmetry is forbidden in periodic lattices but emerges in quasicrystals via aperiodic tiling governed by the golden ratio. MATH: Golden ratio φ = (1+√5)/2 ≈ 1.618; its reciprocal φ⁻¹ ≈ 0.618; complex golden ratio ζ = e^(iπ/5) = φ/2 + i√(3-φ)/2 (a 5th root of unity). Penrose tilings use tw…