Low-vacuum SEM analyses of ceramic tiles with emphasis on glaze defects characterisation

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• 作者：Tinkara Kopar ; Vilma Ducman
• 关键词：LV-SEM ; Ceramic tiles ; Glaze ; Defects ; Material deterioration
• 刊名：Materials Characterization
• 出版年：2007
• 出版时间：November-December 2007
• 年：2007
• 卷：58
• 期：11-12
• 页码：1133-1137
• 全文大小：1583 K

文摘

The behaviour of glazed building ceramics exposed to different environment (weathering, chemicals, etc.) is determined by microstructural features; in many cases structural and surface defects at the micro- or nanometre scale are crucial for the functional properties of products. Many testing methods for materials characterization of a variety of ceramic products, physical and chemical methods, are time-consuming, large quantities of samples are needed, and are usually destructive. This paper illustrates the use of low-vacuum scanning electron microscopy (LV-SEM) as fast and almost non-destructive, as only a small amount of sample is needed. Examples are given of various surface and structural properties of building ceramics, for the identification of the material deterioration process as a result of environmental impact.