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Moradkhani, Alireza, Hoseinpour Gollo, Mohammad, Panahizadeh, Valiollah. (1404). Effect of Microstructural Features and Al2O3 Doping on Aging Resistance, Mechanical Properties and Crack Propagation in 3Y-TZP Plate Ceramics for Dental Restorations: A Comprehensive Peridynamics Study. هنرهای کاربردی, 12(3), 523-554. doi: 10.22075/macs.2025.34610.1694
Alireza Moradkhani; Mohammad Hoseinpour Gollo; Valiollah Panahizadeh. "Effect of Microstructural Features and Al2O3 Doping on Aging Resistance, Mechanical Properties and Crack Propagation in 3Y-TZP Plate Ceramics for Dental Restorations: A Comprehensive Peridynamics Study". هنرهای کاربردی, 12, 3, 1404, 523-554. doi: 10.22075/macs.2025.34610.1694
Moradkhani, Alireza, Hoseinpour Gollo, Mohammad, Panahizadeh, Valiollah. (1404). 'Effect of Microstructural Features and Al2O3 Doping on Aging Resistance, Mechanical Properties and Crack Propagation in 3Y-TZP Plate Ceramics for Dental Restorations: A Comprehensive Peridynamics Study', هنرهای کاربردی, 12(3), pp. 523-554. doi: 10.22075/macs.2025.34610.1694
Moradkhani, Alireza, Hoseinpour Gollo, Mohammad, Panahizadeh, Valiollah. Effect of Microstructural Features and Al2O3 Doping on Aging Resistance, Mechanical Properties and Crack Propagation in 3Y-TZP Plate Ceramics for Dental Restorations: A Comprehensive Peridynamics Study. هنرهای کاربردی, 1404; 12(3): 523-554. doi: 10.22075/macs.2025.34610.1694

Effect of Microstructural Features and Al2O3 Doping on Aging Resistance, Mechanical Properties and Crack Propagation in 3Y-TZP Plate Ceramics for Dental Restorations: A Comprehensive Peridynamics Study

Mechanics of Advanced Composite Structures
مقاله 7، دوره 12، شماره 3 - شماره پیاپی 26، بهمن 2025، صفحه 523-554    اصل مقاله (2.31 M)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22075/macs.2025.34610.1694
نویسندگان
Alireza Moradkhani؛ Mohammad Hoseinpour Gollo* ؛ Valiollah Panahizadeh
Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran
تاریخ دریافت: 08 تیر 1403،  تاریخ بازنگری: 29 آذر 1403،  تاریخ پذیرش: 13 دی 1403 
چکیده
This study investigates the effects of microstructural features, nanoporosity, and micro-cracks on macro-crack propagation in 3Y-TZP plate ceramics doped with Al2O3 (0 to 0.5 wt%) for dental restoration applications, utilizing peridynamics (PD) theory for the first time. The research employs ordinary state-based PD to offer new insights into these interactions. Materials are synthesized through high-energy ball milling of ZrO2 powders at 1500 °C for 2 h. Mechanical properties, including density, average porosity diameter, Young’s modulus, Poisson’s ratio, and fracture toughness (KIC), are rigorously assessed. Results indicate that increasing Al2O3 content to 0.5 wt% enhances relative density, hardness, Young's modulus, KIC, and flexural strength to 99.5%, 15.1 GPa, 280 GPa, 9.97 MPa·m1/2, and 355 MPa, respectively, while low-temperature degradation over 800 h shows that Al2O3 doping significantly reduces aging kinetics. PD simulations demonstrate that micro-cracks substantially affect crack propagation, revealing a 15% reduction in macro-crack speeds compared to FEM results. This research enhances the understanding of dental ceramics and establishes a foundation for analyzing fractures in dental restoration ceramics using PD.
کلیدواژه‌ها
Dental ceramics؛ Peridynamics؛ Brittle fracture؛ Mechanical properties؛ Low-temperature degradation (LTD)
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