Fracture toughness in interface systems Ni-Cr/ceramic, alumina/ceramic and zirconia/ceramic

被引：0

作者：

Porto, C. P. S. ^{[1
]}

Parente, M. ^{[2
]}

Jorge, R. M. N. ^{[2
]}

Pereira, L. C. ^{[3
]}

Griza, S. ^{[4
]}

机构：

[1] Univ Tiradentes UNIT, UFS, Programa Posgrad Ciencia & Engn Mat P2CEM, Aracaju, Sergipe, Brazil

[2] Univ Porto, Fac Engn, IDMEC, P-4100 Oporto, Portugal

[3] Univ Fed Rio de Janeiro, EPoli COPPE, Rio De Janeiro, Brazil

[4] UFS, P2CEM, Aracaju, Sergipe, Brazil

来源：

BIODENTAL ENGINEERING III | 2014年

关键词：

FINITE-ELEMENT-METHOD; DENTAL PORCELAINS; CERAMICS; PARTITION;

D O I：

暂无

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

In this study, there was a new setting in the dimensions and position of the crack in the specimen to perform the bending test of three points the objective of producing specimens with lower costs. The results of mechanical testing were compared and validated by the Finite Element Method (FEM). Numerical results and mode of fracture were similar in both methodologies employed, which shows the validity of this test. After the rupture area of the fracture was analyzed with the aid of a scanning electron microscope in order to identify the path of the crack opening. The tests allowed to obtain the value of fracture toughness of the interfaces of restorations. As for crack propagation that spread toward the veneering ceramic in all samples.

引用

页码：15 / 20

页数：6

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