Sodalite zeolite as an alternative all-ceramic infiltrating material for alumina and zirconia toughened alumina frameworks |
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| Affiliation: | 1. Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur 50603, Malaysia;2. Department of Prosthetic Dentistry, Faculty of Dentistry, University of Baghdad, Iraq;3. Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;1. School of Materials Science and Engineering, University of Jinan, Jinan 250022, China;2. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China;1. Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan;2. Department of Materials Science and Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan;3. Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan;4. Photon Factory, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan;1. Departamento de Química (QMC), Universidade Federal de Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil;2. Departamento de Química, Universidade Federal do Paraná (UFPR), 81531-980 Curitiba, PR, Brazil;3. Instituto Nacional de Ciência e Tecnologia de Energia e Ambiente (INCT E&A), Universidade Federal da Bahia (UFBA), 40170-115 Salvador, BA, Brazil;4. Departamento de Engenharia Química (EQA), Universidade Federal de Santa Catarina (UFSC), 88040-900 Florianópolis, SC, Brazil;5. Departamento de Engenharia de Materiais e Cerâmica, Universidade de Aveiro, 3810-193 Aveiro, Portugal;1. Centro de Investigaciòn en Materiales Avanzados, CIMAV S.C., Laboratorio Nacional de Nanotecnologìa, Miguel de Cervantes # 120 Comp. Ind., Chihuahua, 31136 Mexico;2. CEIT and TECNUN (University of Navarra), San Sebastian, 20018 Spain;3. Interceramic, Department R & D, Av. Carlos Pacheco 7200, Chihuahua, 31060 Mexico;1. Department of Mechanical, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Center of Advanced Manufacturing and Material Processing, AMMP Center, University Malaya, 50603 Kuala Lumpur, Malaysia;3. Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia;4. Department of Mechanical Engineering, Faculty of Engineering, Assiut University, 71516 Assiut, Egypt |
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| Abstract: | The purpose of this study was to determine the effects of synthesized sodalite zeolite infiltration achieved by a direct in-situ hydrothermal reaction followed by sintering process on the flexural strength and hardness of alumina and zirconia-toughened alumina (ZTA) frameworks. Ceramic core materials were prepared as disk-shaped specimens with 16 mm diameter and 1.2±0.2 mm thickness. The case-study group was synthesized sodalite zeolite-infiltrated alumina (IA-SOD) and synthesized sodalite zeolite-infiltrated ZTA (IZ-SOD); and the control group was glass-infiltrated alumina (IA-glass) and glass-infiltrated ZTA (IZ-glass). The biaxial flexural strength (piston-on-three-balls test) and Vickers microhardness were compared among groups (n=10 specimens in each group). Scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) were used to investigate the structural characteristics of specimens at the fracture and cross-sectional surfaces. For both IA-SOD and IZ-SOD, the biaxial flexural strength exceeded the required value of 100–150 MPa as specified by ISO 6872(2015), indicating their potential as all-ceramic core materials. The flexural strengths and Vickers microhardness of IZ-SOD were respectively 324.7 MPa and 1162 VHN, while these values were measured 233.6 MPa and 1013 VHN for IA-SOD. The mechanical properties and microstructure of core materials have been advocated as crucial to the clinical performance of all-ceramic dental restorations. This investigation provides data regarding the flexural strength, hardness and microstructure of partially sintered alumina and ZTA frameworks with synthesized sodalite zeolite infiltration. |
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| Keywords: | Sodalite zeolite infiltration In-Ceram alumina Zirconia toughened alumina Mechanical properties |
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