An estimate of quartz content and particle size in porcelain tiles from young's modulus measurements

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• 作者：Marcelo Dal Bó ; ^a ; ^b ; ^{marcelodalbo@hotmail.com} ; Vicente Cantavella^c ; Enrique Sanché ; z^c ; Francisco A. Gilabert^d ; Anselmo O. Boschi^e ; Dachamir Hotza^a
• 关键词：(B) Non-destructive evaluation ; (C) Mechanical properties ; (D) Porcelain ; Hysteresis
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：43
• 期：2
• 页码：2233-2238
• 全文大小：1370 K
• 卷排序：43

文摘

The influence of quartz particle size, weight content and firing temperature on the Young's modulus of porcelain tiles was studied. To simulate a porcelain tile microstructure, an albite glass matrix with added crystalline quartz particles was developed. Average particle size of quartz (3.4 and 31 µm) and volume content (18.5 and 37.6 vol%) were varied. An acoustic impulse excitation technique was used to measure the elastic modulus from room temperature up to 700 °C. Results showed that quartz has a major influence on the elastic modulus of porcelain tiles. At temperatures below 573 °C, a hysteresis area between the Young's modulus curves during heating and cooling was closely related to quartz particle size. Between 573 and 700 °C, the variation of the Young's modulus was related to the quartz volume fraction. By using those correlations, a prediction of quartz content and quartz particle size in commercial porcelain materials can be carried out from Young´s modulus data.