Determination of fracture toughness of Y-TZP ceramics |
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| Affiliation: | 1. Collaborative Innovation Center for Green Light-weight Materials and Processing, Hubei Province Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, 430068 Wuhan, PR China;2. State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China;3. Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden;1. Centro de Investigación en Materiales Avanzados S.C., and Laboratorio Nacional de Nanotecnología, Miguel de Cervantes 120, Complejo Industrial Chihuahua, C.P. 31109, México;2. Facultad de Odontología, Universidad Autónoma de Chihuahua, Pascual Orozco y Avenida Universidad, s/n C.P. 31000, Mexico;3. Centro de Ingeniería y Desarrollo Industrial, Santiago de Querétaro 76130, Qro, México;4. Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA;1. Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg, 44, B-3001 Heverlee, Belgium;2. Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium;3. KU Leuven BIOMAT, Department of Oral Health Sciences, KU Leuven & Dentistry, University Hospitals Leuven, Kapucijnenvoer, 7, blok a, B-3000 Leuven, Belgium;1. Université de Lyon, INSA de Lyon, MATEIS CNRS UMR5510, 7 Av. Jean Capelle, 69621 Villeurbanne, France;2. Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, 08930 Barcelona, Spain;3. Department of Neurosciences, Reproductive and Odontostomatological Sciences, Prosthodontic Area, University “Federico II”, Napoli Italy;4. Department of Prosthodontics and Dental Materials, University of Siena, V.le Bracci 1, 57100, Italy |
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| Abstract: | The goal of this study is to determine the fracture toughness of 2Y-TZP and 2.5Y-TZP ceramics by single-edge V-notched beam (SEVNB) method and single-edge notched beam (SENB) method. The errors of fracture toughness values tested by SENB are also evaluated. The actual fracture toughness values obtained by SEVNB method are 6.4 ± 0.1 and 5.3 ± 0.1 MPa m1/2 for 2Y-TZP and 2.5Y-TZP, respectively. After SENB method testing, the phase transformability (t-ZrO2 → m-ZrO2) on fractured surface is higher than that of SEVNB method testing. The relationship of fracture toughness values between by SEVNB and by SENB method is established. |
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| Keywords: | TZP Fracture toughness SEVNB method SENB method |
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