Leucite-Coesite ceramic coatings for metal-based dental restorations: Structural and thermoluminescence analysis

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-06-04 DOI:10.1016/j.radphyschem.2025.113037

Esma Başak Gül Aygün , A. Barad , Abeer S. Altowyan , J. Hakami , M. Topaksu , N. Can

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引用次数: 0

Abstract

Leucite

and Coesite-based ceramic materials have garnered significant attention for their potential use in dental restorations due to their enhanced mechanical strength, thermal stability, and aesthetic properties. This study investigates the structural, microstructural, and thermoluminescence (TL) properties of a Leucite-Coesite ceramic coating designed for metal-based dental applications. A comprehensive characterization was performed using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and TL analysis to assess crystallinity, phase composition, and luminescence behavior. Energy-dispersive X-ray spectroscopy (EDX) confirmed the presence of key elements, while FTIR revealed characteristic Si–O and Al–O vibrational modes, indicating a stable aluminosilicate structure. TL analysis revealed a dose-dependent response with distinct glow peaks, suggesting potential applications in radiation dosimetry. The TL intensity exhibited a moderate increase with heating rate (∼10 %), deviating from classical first-order kinetics. This behavior may reflect non-classical recombination mechanisms involving spatial correlations between traps and recombination centers. Glow Curve Deconvolution (GCD) analysis identified nine distinct TL peaks with activation energy values ranging from 0.80 eV to 1.42 eV. These results indicate the presence of well-separated kinetic components with consistent parameter estimates. These findings highlight the complex charge carrier dynamics in Leucite-Coesite ceramics and underscore their potential for both restorative dentistry and radiation dosimetry.

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金属基牙齿修复体用白晶石-钴石陶瓷涂层：结构和热释光分析

由于其增强的机械强度、热稳定性和美观性，白石和钴石基陶瓷材料在牙齿修复中的潜在应用引起了人们的极大关注。本研究研究了一种专为金属基牙科应用而设计的白石-钴石陶瓷涂层的结构、微观结构和热释光（TL）性能。利用x射线衍射（XRD）、扫描电镜（SEM）、傅里叶变换红外光谱（FTIR）和TL分析对其进行了全面表征，以评估结晶度、相组成和发光行为。能量色散x射线光谱（EDX）证实了关键元素的存在，而FTIR显示了Si-O和Al-O的特征振动模式，表明铝硅酸盐结构稳定。TL分析显示出具有明显发光峰的剂量依赖性反应，提示在辐射剂量学中有潜在的应用前景。TL强度随着升温速率的增加而适度增加（~ 10%），偏离经典的一级动力学。这种行为可能反映了涉及陷阱和重组中心之间空间相关性的非经典重组机制。发光曲线反褶积（GCD）分析鉴定出9个不同的TL峰，活化能在0.80 ~ 1.42 eV之间。这些结果表明存在分离良好的动力学组分，参数估计一致。这些发现突出了白晶石-柯氏石陶瓷的复杂载流子动力学，并强调了它们在修复牙科和辐射剂量学方面的潜力。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.