Increasing Bending Strength of Porcelain Stoneware via Pseudoboehmite Additions

Author:

Aguilar-García Omar1,Lara-Hernández Rafael1,Arellano-Lara Azucena2,Gil-Vázquez José L.1,Aguilar-García Jaime1

Affiliation:

1. Departamento de Ingeniería Industrial, Instituto Tecnológico de Morelia, Avenida Tecnológico 1500, Col. Lomas de Santiaguito, 58120 Morelia, MICH, Mexico

2. Departamento de Cerámica, Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, Apdo. Postal 888, 58000 Morelia, MICH, Mexico

Abstract

Pseudoboehmite nanoparticles synthesized through the desulfation of Al2(SO4)3 were used to investigate the reinforcement of commercial porcelain stoneware. Fractured specimens investigated by SEM suggest that the added pseudoboehmite precursor generated a nanometric primary mullite phase dispersed in the porcelain glassy phase that limited and stopped the intergranular crack propagation. The porcelain modulus of rupture increased twice the value of the modulus of rupture (108 MPa) as compared with that samples without pseudoboehmite additions. Pseudoboehmite also led to increased densification of porcelain stoneware bodies up to 1250°C as shown by thermodilatometry data.

Funder

Investigación Científica y Desarrollo Tecnológico del Sistema Nacional de Institutos Tecnológicos

Publisher

Hindawi Limited

Subject

General Medicine

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