The effect of thermal cycling on the shear bond strength of porcelain/Ti-6Al-4V interfaces

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Sendao, IA (Autor) Outra; Alves, AC (Autor) Outra; Galo, R (Autor) Outra; Toptan, F (Autor) Outra; Silva, FS (Autor) Outra; Ariza, E (Autor) Outra

Revista

Título: Journal of the Mechanical Behavior of Biomedical Materials

Vol. 44

Páginas: 156-163

ISSN: 1751-6161

Editora: Elsevier

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00A-5T8

DOI: 10.1016/j.jmbbm.2015.01.004

Abstract (EN): The aim of the study was to evaluate the effect of thermal cycling on the shear bond strength of the porcelain/Ti-6Al-4V interfaces prepared by two different processing routes and metallic surface conditions. Polished and SiO2 particle abraded Ti-6Al-4V alloy and Triceram bonder porcelain were used to produce the interfaces. Porcelain-to-metal specimens were processed by conventional furnace firing and hot pressing. Thermal cycling was performed in Fusayama's artificial saliva for 5000 cycles between 5 +/- 1 and 60 +/- 2 degrees C. After thermal cycling, shear bond tests were carried out by using a custom-made stainless steel apparatus. The results were analyzed using t-Student test and non-parametric Kruskal-Wallis test (p<0.01). Most of the polished-fired specimens were fractured during thermal cycling; thus, it was not possible to obtain the shear bond strength results for this group. Sandblasted-fired, polished-hot pressed, and sandblasted-hot pressed specimens presented the shear bond strength values of 76.2 +/- 15.9, 52.2 +/- 23.6, and 59.9 +/- 22.0 MPa, respectively. Statistical analysis indicated that thermal cycling affected the polished specimens processed by firing, whereas a significant difference was not observed on the other groups.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8