Abrasión de superficies de azulejos cerámicos esmaltados

Comentario sobre "Abrasión Superficial de Azulejos"

“…This behaviour is shown in Figure 1, indicating that wear resistance increased with increasing fracture toughness (in other words, normalised weight loss decreased with increasing fracture toughness). Due to the fact that the hardness of all samples was nearly identical (Table 1), the authors concluded that this property would not affect the material removal during abrasion test [1]. The present comment has been prompted by this last conclusion of Esposito and Tucci [1], which seems to suggest that fracture toughness is the only property affecting wear response of glazed tiles.…”

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Esposito and Tucci have published recently an interesting paper on the assessment of surface abrasion of glazed ceramic tiles [1]. They studied the dependence of the wear behaviour of the glaze layer on several parameters such as porosity, hardness and fracture toughness of the glaze.

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“…It may be even speculated that the good correlation between fracture toughness and wear behaviour data obtained by Esposito and Tucci is fortuitous and simply the result of having investigated samples with nearly identical hardness. Since the PEI test seems to be insufficient for an accurate classification of wear behaviour of ceramic glazes, as demonstrated by the results of Esposito and Tucci [1], further research in this area aimed at clarifying the relationship between wear resistance, hardness, toughness and brittleness of glazes is encouraged. The objective should be to identify the property, or combination of properties, most suitable to be used as a tool for prediction of wear behaviour of ceramic glazes.…”

Materia prima para la industria cerámica de Norte de Santander. II. Evaluación del comportamiento térmico y su incidencia en las propiedades tecnológicas

“…puede mantener sus propiedades técnicas y estéticas durante un largo período de tiempo, a no ser que sea utilizado en unas determinadas condiciones que ocasionaría un elevado deterioro, lo que se traduce en una disminución de su vida útil. Por esta razón el punto de llegada de un proceso es proporcionar a un material una estructura resistente a cualquier desgate o deterioro generado por estos fenómenos ambientales (mecánicos o físicos), y de esta manera mejorar las propiedades y lograr que estas se mantengan inalterables durante un lapso establecido [1].…”

Effects of corundum in the development of structural, mechanical and tribological properties of raw materials for the manufacture of structural products

“…6 shows the obtained results, where the evolution of the wear (volume removed of material) in the surface of the specimens was compared; in the case of M0 an increase of the volume removed in the two firing temperatures was observed indicating that the material is intrinsically affected in its structure [28]. Although the abrasion resistance is related to the open porosity of the material, this characteristic is also affected by the texture and surface adhesion of the product indicating that the increase in temperature superficially affects the material by weakening it structurally [29]. This wear was minimized with the addition of corundum; it was observed that increasing the additive reduced the volume removed mainly in M20 fired at 1250 °C, which can be explained to the fact that the corundum has a high hardness and therefore is a material which is resistant to wear, an effect that is effectively developed in the material and is evidenced with the decrease of up to 33.9% at 1200 °C and 51.5% at 1250 °C.…”