Characterization of Metal/Ceramic Interfaces in Dental Materials by Acoustic Emission

被引：8

作者：

Ortega P, Valeria I. ^{[1
]}

Kaplan, Andrea ^{[2
]}

Gomez, Martin P. ^{[1
]}

Lopez Pumarega, Maria I. ^{[1
]}

Nieva, Nicolas ^{[3
]}

机构：

[1] Comis Nacl Energia Atom, Ctr Atom Constituyentes, Ave Gral Paz 1499, Buenos Aires, DF, Argentina

[2] Univ Buenos Aires, Catedra Mat Dent, Hosp Odontol Univ, Fac Odontol, Buenos Aires, DF, Argentina

[3] Univ Nacl Tucuman, Lab Fis Solido, Dept Fis, Fac Ciencias Exactas & Tecnol, San Miguel De Tucuman, Argentina

来源：

INTERNATIONAL CONGRESS OF SCIENCE AND TECHNOLOGY OF METALLURGY AND MATERIALS, SAM - CONAMET 2013 | 2015年 / 8卷

关键词：

Acoustic Emission; Metal/Ceramic Interface; Thermal treatments; Sanding Process; Charge;

D O I：

10.1016/j.mspro.2015.04.125

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Porcelain fused to metal (PFM) is one of the more extended combined rigid restoration devices used in dental materials. PFM combines good mechanical properties of metals and aesthetic properties of ceramics. The quality of those parts depends on metal/ceramic interface, throughout factors like adhesion. There are different methods that evaluate the metal/ceramic bond, some of those are standardized. The aim of this work is to apply the Acoustic Emission technique (AE) in the characterization of metal/ceramic interfaces under the action of a charge. Elastic waves produced in any material when it is submitted to forces, are known as AE. To assess the material behavior, the waves are detected by piezoelectric sensors. In this research, the metal/ceramic bond was studied by a flexural test of three points. The results of the AE parameters were correlated with surface and heat treatment performed on the substrates. These changes affect metal-ceramic adhesion. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：683 / 692

页数：10

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