Effect of silver nanoparticless in the structure and mechanical properties of mullite/Ag cermets

Abstract

The objective of this work was to study the influence of the addition of silver nanoparticles in the microstructure of mullite at two different temperatures of sintering (1500 and 1600 °C), in order to decrease the porosity and increase the density as well better the hardness and fracture toughness. The microstructural characteristics were studied by scanning electron microscopy, confocal scanning microscopy and X-ray diffraction. Mullite/Ag cermets with homogenous microstructure were and a fracture toughness of 2.42 MPа·m 1/2 .

Strengthening of Mullite Ceramics with Silver Reinforcements

“…Few studies were found in the literature on the reinforcement of mulite by metals and only one research studied silver as a reinforcing medium. 15 For this reason and due to the high ductility of Ag allowing its usage as the reinforcing material, in this study we propose the processing of a new type of composite material based on mullite reinforced with silver particles.…”

Effect of TiO2 on mullite formation in mixture of Nigeria sourced kaolinite and calcined alumina

“…Some of these outstanding properties include; excellent thermal and chemical stability, high refractoriness and low creep rate [3][4]. The aluminosilicate mullite also has a low coefficient of thermal expansion and a very high thermal shock resistance [5][6]. Its usage and applications in high temperature industrial process and refractory applications have made the demand for this aluminosilicate increase day by day.…”