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Ceramics
Scopus
ISSN 2571-6131 · MDPI AG · 723 artikel di indeks
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Low-Cost Synthesis and Characterization of Iron Phosphate Ceramics for Immobilizing Spent FCC Catalysts
Spent fluid catalytic cracking catalysts (E-cat) are a challenging waste from the petroleum refining industry, enriched with heavy metals such as nickel, vanadium, and iron. This study proposes a circular valorization strategy by incorporating E-cat into a chemically bonded iron phosphate ceramic…
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Analysis of Microstructural Effects on the Thermal Conductivity of Alumina-Spinel Refractories Compared to Alumina Ceramics
Alumina-spinel refractory bricks, composed of 82 wt.% alumina and 18 wt.% MgAl2O4 spinel phases, are used in steel ladles due to their ability to resist chemical attack and thermal shock. Thermal shock resistance is determined, in part, by the thermal conductivity of the material. Thermal…
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Phase Transformation in Mixtures of Clay–Glass–Hematite–Waste Activated Sludge During Sintering
This work analyzes phase transformations in quaternary mixtures (clay–glass–hematite–waste activated sludge (WAS)), processed at 800–1000 °C under conditions of oxygen deficiency. The results of the study showed that, depending on the temperature treatment of mixtures of different compositions, the…
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Research of Controlled Components on PZT-ZnO-Based Multifunctional Electronic Ceramics with Piezoelectricity and Varistor Behaviors
To synergistically integrate piezoelectric and varistor functionalities in a single material, PNN-PZT piezoelectric powder (abbreviated as P) and ZnO-based varistor powder (abbreviated as Z) were utilized to fabricate PZT-ZnO composite ceramics (denoted as PZm) via conventional solid-state…
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He+ Ion Irradiation Effects on the Phase Stability and Microstructure of High-Purity Zr3AlC2
High-purity Zr3AlC2 samples (>92 wt%) were synthesized and irradiated at room temperature using 100 keV He+ ions at fluences of 2 × 1016 and 1 × 1017 ions/cm2. As a Zr-based MAX phase, Zr3AlC2 is a promising candidate for accident-tolerant fuel cladding due to its compatibility with Zr alloys and…
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The Effect of Combined Sandblasting and Piranha Solution Treatment on Resin Cement Bond Strength to Zirconia: An In Vitro Study
This in vitro study investigated whether piranha solution treatment, applied alone or following sandblasting, enhances the shear bond strength of resin cement to zirconia. Fifty zirconia specimens were assigned to five groups: no treatment, sandblasting (SB), piranha solution (Pi), sandblasting…
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Experimental and Numerical Study on the Mechanical Properties of Alumina Ceramics Based on a Modified SHPB Setup
In response to the high stiffness and hardness levels of alumina ceramic materials, the traditional SHPB (split Hopkinson pressure bar) experimental setup has been modified. This study analyzes the propagation patterns of stress waves in the SHPB system after adding cushion blocks. Experiments…
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Enhanced Piezoelectric Properties of BF-BST High Curie Temperature Lead-Free Ceramics via Fine Tuning the Composition
As the operational demands on piezoelectric devices grow increasingly stringent, there is an urgent need for materials capable of delivering stable performance at elevated temperatures. BiFeO3 (BF), a lead-free piezoelectric oxide with high-temperature resilience, is characterized by its notably…
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Provenance Discrimination of Ming Dynasty (1368–1644 CE) Imitated Longquan Celadon from Jianyang Bowl Kiln and Jingdezhen Kiln
Longquan celadon represents the pinnacle of Chinese celadon, and there are many kilns in southern China that imitate Longquan celadon. During the Ming Dynasty, Jianyang Bowl Kiln was the representative kiln in Fujian Province for imitating Longquan celadon, while Jingdezhen Kiln was the…
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High-Performance Geopolymer-Based Granulated Adsorbents for Selective Sorption of Radioactive Cesium and Strontium
The selective removal of radioactive cesium-137 and strontium-90 from high-salinity radioactive wastewater remains a critical challenge, as competing ions reduce adsorption efficiency and selectivity. In this study, high-performance granulated adsorbents were developed based on alkali-activated…
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Calcium Effect in PLR–PCR Geopolymers: Peak Compressive Strength at 30% PCR and Evidence of C-A-S-H/N-A-S-H Synergy
Valorizing construction and demolition waste (CDW) via alkaline activation enables low-carbon binders. This study assesses binary geopolymers formulated with recycled brick powder (PLR) and recycled concrete powder (PCR) in seven precursor ratios (0–100% PCR), activated with a ternary…
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Effect of Annealing Temperature on Energy Storage Performance of SrBi3.25La0.75Ti4O15 Thin Films
Dielectric capacitors, characterized by ultra-fast charge/discharge speeds and high power densities, are widely used in modern electronic power systems. However, their low energy density and poor thermal stability limit applications. In this study, SrBi3.25La0.75Ti4O15 (SBLT) ferroelectric thin…
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Optimization of Slurry Preparation and Sintering Atmosphere for High-Density, Plasma-Resistant Alumina Ceramics
Alumina ceramics used in semiconductor plasma environments require high densification, microstructural homogeneity, and stable performance under increasingly aggressive processing conditions. However, systematic studies linking slurry processing parameters to the plasma resistance of alumina…
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Valorization of Industrial Waste in Monoporosa Ceramic Tile Production
The ceramics industry has long embraced the principles of the circular economy, with a strong focus on the reuse and recovery of raw materials essential to the production cycle. This approach reduces costs by reintroducing secondary raw materials—such as production scraps and recycled…
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Additive Manufacturing of Ceramic Materials via Direct Ink Writing (DIW): A Review
In additive manufacturing technologies, the use of pastes and inks based on materials such as clay to create three-dimensional objects layer by layer has opened new possibilities in fields such as engineering and biomedicine. This review article aims to provide a comprehensive understanding of 3D…
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Early Modern Creole and Iberian Ceramics in Cape Verde: Non-Destructive pXRF Analysis of 16th–18th Century Pottery from Santiago Island
Archaeological research on Santiago Island (Cape Verde) offers a strategic framework for investigating ceramic material culture shaped by Iberian and African interactions during the early modern period. This study presents first-stage results from a non-destructive archaeometric analysis of pottery…
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The Effect of Different A-Site Divalent Elements on the Properties of Bi4Ti3O12-Based Piezoelectric Ceramics with Symbiotic Structure
Bismuth layer-structured ferroelectrics (BLSFs) are core candidates for high-temperature piezoelectric applications owing to their excellent thermal stability and fatigue resistance, yet traditional Bi4Ti3O12 (BiT)-based ceramics suffer from limited piezoelectric performance. To address this…
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DLP Fabrication of Mullite Structures: Flaw Mitigation Through Powder Thermal Processing
Digital Light Processing (DLP), which operates through a layer-by-layer deposition, has proven to be a promising technique for obtaining complex and customized architectures. However, there are still numerous unresolved challenges in ceramics additive manufacturing, among which is delamination due…
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Luminescence Features of Eu2O3-Doped Antimony Borate Glasses with High Quantum Efficiency
Boro-antimonite glasses doped with Eu3+ and having the general composition (90-x) Sb2O3–xB2O3–10Li2O-0.5Eu2O3 (x = 0 to 60 in 10 mol. % increment) were prepared using the melt quenching method. The influence of B2O3/Sb2O3 substitution on the spectroscopy and photoluminescence of Eu3+ ions was…
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Incorporation of Nb and Ta into Calcium Borate Sol−Gel Glasses and Their Impact on the Structure and Properties
The effects of incorporating Nb2O5 or Ta2O5, both intermediate oxides, on the structure and ion release behavior of calcium borate-based sol−gel glasses [(70 − x)B2O3-30CaO-xM2O5, x = 0, 2.5, 5, and 7.5 (mol%), and M = Nb or Ta] were investigated. The glasses were prepared by dissolving niobium (V)…