Materials Literature
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Abstract. Belmonteite (IMA 2024-040), ideally CaMn2(AsO4)2(H2O)5⋅2H2O, is a new arsenate mineral discovered in the Gambatesa mine, Graveglia Valley, Ne, Genoa Province, Liguria, Italy. It occurs as aggregates up to 0.5 mm in length, formed by thin tabular crystals, white in color, with a silky luster and white streak.…
ABSTRACT The polymeric materials used in insulator sheds are prone to ageing under different environmental conditions, which can lead to flashovers and grid outages. The ageing process in composite insulators primarily involves changes in the microscopic properties of the materials. Ageing levels were determined based…
Abstract Fluorocarbon polymers possess exceptional thermal and chemical stability but present end-of-life challenges because of their longevity and environmental persistence. Here, we report a distinct class of fluorine-rich polymers based on N-heterocyclic carbene-pentafluorophosphorus (NHC-PF5) zwitterions that cont…
The commercialization of direct isopropanol fuel cells (DIFCs) is hindered by catalyst poisoning from carbonaceous intermediates and over-oxidation during isopropanol oxidation. Here, we present a surface and electronic re-engineering strategy for PtRu catalysts via electrochemical dealloying to enhance activity and p…
Despite the increasing interest in plant-derived green corrosion inhibitors, the inhibition mechanism of Annona muricata leaf extract for carbon steel in acidic media remains largely unexplored. In this study, the corrosion inhibition performance of an ethanolic extract of Annona muricata leaves was systematically in…
Periodic variation in the constitutive parameters of a propagating bulk medium over time, while uniform in space, referred to as periodically modulated photonic time crystals, provides a new control modality for wave-matter interaction. Following this, a step-like (square profile) modulation of permittivity and permea…
Abstract An active corrugated board packaging was developed using a fluting layer containing carvacrol, a bioactive compound from essential oils, and tested as a prototype to extend the shelf life of strawberries. The system employed a controlled-release mechanism based on a new diffusion-retarding method for carvacro…
Abstract Liquid-phase exfoliation (LPE) of graphene typically relies on purified graphite, engineered stabilizers and controlled solvent systems. Here, we report a low-infrastructure waste-to-ink route that combines electronics-derived graphite thermal-management materials with discarded newspaper-derived cellulose in…
This study developed surface-functionalized polylactic acid (PLA) films by depositing electrospun gelatin/chitosan (GE/CH) nanofibrous coatings formulated with and without bioactive phenolic compounds (curcumin and anthocyanin). Evaluating various polymer blending ratios and operational parameters revealed that a GE:C…
Protein hydrogels are highly valued for their biocompatibility and biodegradability, yet their practical use has been limited by poor mechanical strength and dehydration. Polymer‒water interactions govern hydrogel mechanics, whereas dehydration causes failure, rendering water retention and hydration-mediated mechanics…
Metallocene Cyclic Olefin Copolymer foams (mCOC) were produced using supercritical CO 2 (scCO 2 ), and the effects of temperature, pressure, and impregnation time on morphology and properties were systematically investigated. The minimum relative density was achieved at 130°C, 13.8 MPa, and 300 min, producing a densit…
ABSTRACT Localized surface plasmon resonance (LSPR) sensing converts perturbations of the local dielectric environment, nanostructure coupling, and resonance line shape into optical observables such as extinction or scattering spectra, resonance shifts, intensity changes, linewidth variation, asymmetry, and time‐resol…
The current study evaluates the effects of ceramic fillers (CFs), namely, silicon carbide (SiC) and aluminum oxide (Al2O3) on mechanical properties (MPs) of banana fiber (BF)–epoxy composite by employing the multi‑objective optimization-based Taguchi–Grey Relational Analysis (TGRA) method. The composites are produced…
Estuary ship-lock concrete is exposed to chloride-bearing water and sustained hydraulic pressure, which may accelerate chloride ingress and induce pore-structure deterioration. In this study, the chloride transport behavior and microstructural damage of ordinary Portland cement (OPC) concrete and magnesium phosphate c…
The concept of an Electron Orbital Pressure Field (EOPF) is introduced as a novel theoretical framework for describing how changes in electronic orbital distribution generate a spatially varying pressure field, P_o(x), that acts on the atomic lattice of a solid. By formulating the EOPF from first principles of quantum…
This research focused on the mechanical properties of polyester composites reinforced with tamarind seed filler and Kusha mat. Four distinct composite samples were fabricated utilizing the compression molding technique, incorporating single and double-layer Kusha mats, while considering the inclusion or exclusion of t…
A series of non-stoichiometric BaK$_{1-x}$Na$_x$Gd$_3$Fe$_5$O$_{15}$ ($x = 0.00$, 0.10, 0.20, 0.30) tetragonal tungsten bronze (TTB) ceramics were synthesized via solid-state reaction, cold sintering at 150$^\circ$C, and assisted sintering at 400$^\circ$C and 500$^\circ$C. XRD confirmed single-phase TTB formation. Enh…
Abstract Zinc sulfide (ZnS) thin films were deposited on soda lime glass substrates by chemical bath deposition (CBD) to investigate the effect of triethanolamine (TEA) content and bath temperature on their structural, optical, and electrical properties for Cd-free buffer layer applications. The increase of the TEA co…
The study of degradation processes is of fundamental and applied interest. To understand the degradation of cellulose nitrate and to develop sensitive diagnostic methods, combined experimental and theoretical investigations are essential. Sensitive, non-destructive, and contactless methods for diagnosing the state of…
Abstract Cobalt (Co)-doped zinc phosphide (Zn (3-x) Co x P 2 ) nanoparticles were synthesized using a solid-state reaction technique with compositions of x = 0.00, 0.02, 0.06, and 0.08. Their structural, optical, morphological, elemental, and photoluminescence properties were systematically investigated. Based on the…