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66 articles for “X-ray powder diffraction”
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Process Parameters Optimization of Fiber Laser Cladded SS316 Surface Using RSM Analysis
Abstract: This paper presents the laser cladding experiments on the surface of SS316 to study the variations in process parameters, such as scanning speed (100-250 mm/min), laser power (50-250 W), and % volume of B4C (5- 25%) + SS316 powder on the mechanical, metallurgical and tribological performance of the modified surface. A central composite design (CCD) was used to develop the response surface methodology (RSM) to design the experiments and for …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 186–201 Read article
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Characterization Of Senna Occidentalis (Link.) Seed Extract
Abstract: Senna occidentalis (L.) Link commonly known as "coffee senna" or majamfari/rai dore in Hausa is a plant with a long history of traditional and medicinal uses against diseases such as inflammation, pains, and diabetes. This study presents characterization of the bioactive compounds of the seed extracts. Physicochemical analysis of seed powder was carried out following standard procedures. Qualitative phyto-chemical contents were determined for the presence and absence of major metabolites. …
Published in Research & Reviews : Journal of Botany · Vol. 13, Issue 3, 2024 · pp. 13–22 Read article
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Microstructural Evolution and Mechanical Performance of Ambient-Cured Fly Ash–Metakaolin Inorganic Polymer Composites Activated by Anhydrous Sodium Silicate Powder
Abstract: Inorganic geopolymer networks offer a low-carbon and sustainable solution to traditional binder systems through the alkali-activation of industrials-grade aluminosilicate material. The present paper focuses on the microstructure development and the mechanical performance of the ambient-cured fly ash – metakaolin inorganic polymer composite activated with solid anhydrous sodium silicate powder. Five inorganic polymer binder combinations were formulated by replacing fly ash with metakaolin at mass fractions of 0%, 10%, 20%, 30%, …
Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 Read article
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Effect of Bismuth doping on Thiourea crystals : A NLO Material
Abstract: Single crystals of pure and thiourea-substituted bismuth were successfully grown using the slow evaporation solution growth technique at ambient temperature. The impact of thiourea doping on the crystal properties was thoroughly investigated. Solubility tests for the grown samples were conducted at various temperatures, providing crucial data on the dissolution characteristics. Structural characterization of these crystals was performed using single crystal X-ray diffraction (XRD), confirming their crystalline nature. Energy-dispersive X-ray spectroscopy …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 2, 2024 · pp. 10–16 Read article
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Composite Gel-Fibers and Solid-State-Processed Tapes Based on Disentangled Ultra-High Molecular Weight Polyethylene and Electrically Conductive Carbon Black: a Comparative Study
Abstract: In this study, oriented nanocomposite gel-spun fibers and solid-state-processed tapes were manufactured and analyzed. The fibers and tapes were produced using a specific type of nascent disentangled ultra-high molecular weight polyethylene (UHMWPE) reactor powder. As the filler, commercially available electrically conductive carbon black (CB) was used. The ultra-high filler content values up to 75 wt.% were achieved for the UHMWPE/CB gel-spun fibers, while the degree of filling was limited (up …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 151–165 Read article
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Kinetics of Crystallization and Microstructural Evolution of Commercial Fluorophlogopite Machinable Glass- Ceramics in the System SrO∙4MgO∙Al2O3∙ 6SiO2∙2MgF2 with Varying in B2O3
Abstract: Glass materials based on fluorophlogopite stoichiometry with varying concentrations of B₂O₃ were synthesized using the melt-casting method, followed by heat treatment at different crystallization temperatures. The resulting glass and glass–ceramic samples were characterized using differential thermal analysis (DTA), scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier-transform infrared (FT-IR) spectroscopy. Kinetic analysis revealed that the activation energies required for the formation of glass–ceramics were 192.77 kJ mol⁻¹ and 210.47 kJ …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 3, 2025 · pp. 1–16 Read article