دورية أكاديمية
أعرض في EDS

Effect of calcination on minimally processed recycled zirconia powder derived from milling waste.

التفاصيل البيبلوغرافية
العنوان: Effect of calcination on minimally processed recycled zirconia powder derived from milling waste.
المؤلفون: Strazzi-Sahyon HB; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil. Electronic address: ico_strazzi@usp.br., Campos TMB; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil; Department of Physics, Aeronautics Technological Institute, São José dos Campos, SP, Brazil., Dos Santos C; Faculty of Technology, University of Rio de Janeiro State (UERJ - FAT), Resende, RJ, Brazil., Piza MMT; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil., Alves LMM; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil., Benalcazar Jalkh EB; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil., Bergamo ETP; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil; Biomaterials Division, New York University College of Dentistry, New York, NY, USA., Tebcherani SM; Department of Production Engineering, Federal University of Technology, Paraná, Ponta Grossa, PR, Brazil., Witek L; Biomaterials Division, New York University College of Dentistry, New York, NY, USA; Department of Biomedical Engineering, NYU Tandon School of Engineering, New York University, Brooklyn, NY, USA., Coelho PG; Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, USA., Yamaguchi S; Department of Dental Biomaterials, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan., Bonfante EA; Department of Prosthodontics and Periodontology, University of São Paulo - Bauru School of Dentistry, Bauru, SP, Brazil.
المصدر: Dental materials : official publication of the Academy of Dental Materials [Dent Mater] 2024 Sep; Vol. 40 (9), pp. 1477-1486. Date of Electronic Publication: 2024 Jun 29.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Science Country of Publication: England NLM ID: 8508040 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0097 (Electronic) Linking ISSN: 01095641 NLM ISO Abbreviation: Dent Mater Subsets: MEDLINE
أسماء مطبوعة: Publication: 1998- : Kidlington, Oxford, UK : Elsevier Science
Original Publication: Copenhagen : Munksgaard, c1985-
مواضيع طبية MeSH: Zirconium*/chemistry , Recycling* , Materials Testing* , Microscopy, Electron, Scanning* , Powders* , X-Ray Diffraction* , Flexural Strength*, Yttrium/chemistry ; Hardness ; Surface Properties ; Spectrometry, X-Ray Emission ; Computer-Aided Design ; Dental Materials/chemistry
مستخلص: Objective: To assess the influence of calcination process on the properties of minimally processed recycled 3Y-TZP, and to compare it with its commercial counterpart.
Methods: Non-milled 3Y-TZP waste was collected, fragmented and ball-milled to a granulometric < 5 µm. Half of the recycled powder was calcined at 900 °C. Recycled 3Y-TZP disks were uniaxially pressed and sintered to create two recycled groups: 1) Calcined and 2) Non-calcined to be compared with a commercial CAD/CAM milled 3Y-TZP. The microstructure of experimental groups was assessed through density (n = 6), scanning electron microscopy (n = 3) and energy-dispersive X-ray spectroscopy (n = 3); and the crystalline content was evaluated through X-ray diffraction (XRD) (n = 3). Optical and mechanical properties were investigated through reflectance tests (n = 10), and Vickers hardness, fracture toughness (n = 5), and biaxial flexural strength tests (n = 16), respectively. Fractographic analysis was performed to identify fracture origin and crack propagation. Statistical analyses were performed through ANOVA followed by Tukey´s test, and by Weibull statistics.
Results: Particle size distribution of recycled powder revealed an average diameter of ∼1.60 µm. The relative density of all experimental groups was > 98.15 % and XRD analysis exhibited a predominance of tetragonal-phase in both recycled groups, which were similar to the crystallographic pattern of the control group. Cross-section micrographs presented flaws on the non-calcined group, and a more homogeneous microstructure for the calcined and commercial groups. Commercial samples showed lower contrast-ratio and higher translucency-parameter than the recycled groups, where non-calcined presented higher translucency-parameter and lower contrast-ratio than its calcined counterpart. The commercial group presented higher fracture toughness and characteristic strength than the recycled groups. Moreover, the calcined group exhibited higher hardness, characteristic strength, and probability of survival at higher loads than the non-calcined group. Fractographic analysis depicted the presence of microstructural flaws in the non-calcined group, which may have acted as stress-raisers and led to failures at lower flexural strengths values.
Significance: The calcination process improved the microstructure, optical, and mechanical properties of the recycled 3Y-TZP.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
فهرسة مساهمة: Keywords: Ceramic; Mechanical tests; Recycling; Surface properties; Zirconia
المشرفين على المادة: C6V6S92N3C (Zirconium)
0 (Powders)
58784XQC3Y (Yttrium)
S38N85C5G0 (zirconium oxide)
0 (Dental Materials)
تواريخ الأحداث: Date Created: 20240629 Date Completed: 20240816 Latest Revision: 20240816
رمز التحديث: 20240818
DOI: 10.1016/j.dental.2024.06.026
PMID: 38944559
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-0097
DOI:10.1016/j.dental.2024.06.026