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Effect of pH variation on the subcritical crack growth parameters of glassy matrix ceramics
(2019-01-01)
The goals of our study were to calculate the subcritical crack growth (SCG) parameters of two veneering ceramics stored in water or Streptococcus mutans (S. mutans) biofilm and remineralizing medium, with indentation flaws. ...
Effect of displacement rate and subcritical crack growth on J-R curves of API X65 steels in sour environment
(Pergamon-Elsevier Science Ltd, 2018-03)
Fracture tests in sour solution of an API X65 steel for J-R curves determination were performed at different displacement rates. The results indicated a strong dependence of J-R curves on the displacement rate. At low ...
Mechanical strength and subcritical crack growth under wet cyclic loading of glass-infiltrated dental ceramics
(Elsevier B.V., 2010-05-01)
Objectives. Evaluate the flexural strength (sigma) and subcritical crack growth (SCG) under cyclic loading of glass-infiltrated alumina-based (IA, In-Ceram Alumina) and zirconia-reinforced (IZ, In-Ceram Zirconia) ceramics, ...
Mechanical strength and subcritical crack growth under wet cyclic loading of glass-infiltrated dental ceramics
(Elsevier B.V., 2010-05-01)
Objectives. Evaluate the flexural strength (sigma) and subcritical crack growth (SCG) under cyclic loading of glass-infiltrated alumina-based (IA, In-Ceram Alumina) and zirconia-reinforced (IZ, In-Ceram Zirconia) ceramics, ...
The roles of microstructure and surface energy on subcritical crack growth in glass-ceramics
(2021-03-01)
This study aimed to investigate the microstructure, failure probabilities, the susceptibility to subcritical crack growth (SCG), and the surface energy of two comercial brands IPS E.max CAD, Ivoclar Vivadent (LD-C) and ...
Subcritical crack growth and in vitro lifetime prediction of resin composites with different filler distributions
(ELSEVIER SCI LTDOXFORD, 2012-09)
Objectives. Verify the influence of different filler distributions on the subcritical crack growth (SCG) susceptibility, Weibull parameters (m and sigma(0)) and longevity estimated by the strength-probability-time (SPT) ...
Microstructure characterization and SCG of newly engineered dental ceramics
(2016-07-01)
Objectives The aim of this study was to characterize the microstructure of four dental CAD-CAM ceramics and evaluate their susceptibility to stress corrosion. Methods SEM and EDS were performed for microstructural ...
Describing fatigue crack growth and load ratio effects in Al 2524 T3 alloy with an enhanced exponential model
(ELSEVIER SCIENCE BVAMSTERDAM, 2013-08-02)
The fatigue crack behavior in metals and alloys under constant amplitude test conditions is usually described by relationships between the crack growth rate da/dN and the stress intensity factor range Delta K. In the present ...