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首页> 外文期刊>Materials Science and Engineering >Influence of composition on mechanical behaviour of porcelain tile. Part Ⅰ: Microstructural characterization and developed phases after firing
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Influence of composition on mechanical behaviour of porcelain tile. Part Ⅰ: Microstructural characterization and developed phases after firing

机译：组成对瓷砖力学性能的影响。第一部分：烧成后的显微组织表征和发展阶段

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摘要

The porcelain tile is a ceramic product with high technical and aesthetic performance, whose composition is formulated from a mixture of clay or kaolin, quartz and feldspar. This paper is the first part of a study focusing on determining the influence of the porcelain tile composition on mechanical behaviour of sintered bodies. Seven compositions were prepared according to a simplex-centroid mixture design for a triaxial mixture, comprised of kaolinite, quartz and albite. The mixtures were processed reproducing industrial conditions: wet mixing followed by spray-drying, forming by pressing and fast firing with maximum temperatures ranged from 1210 to 1260 ℃. The presence of kaolinite increases the dry apparent density in a significant way up to 30wt%. Because of the fast firing, the microstructure is directly influenced by particle packing after forming. The internal porosity presented little change as a function of starting composition in the tested intervals. The surface porosity of the polished product increased with higher amounts of quartz. The results obtained in this first part of the study showed how the starting and end composition could generate the microstructure and suggest its influence on the mechanical properties of the porcelain tile, which will be later analysed in the second part of this paper.
机译：瓷砖是具有高技术和美学性能的陶瓷产品，其成分由粘土或高岭土，石英和长石的混合物配制而成。本文是研究的第一部分，重点在于确定瓷砖组合物对烧结体力学性能的影响。根据用于三轴混合物的单纯形-质心混合物设计制备了七种组合物，其由高岭石，石英和钠长石组成。对混合物进行加工，使其重现工业条件：湿法混合，然后喷雾干燥，通过压制和快速烧成形成，最高温度为1210至1260℃。高岭石的存在以高达30wt％的显着方式增加了干表观密度。由于快速焙烧，成型后的微观结构直接受到颗粒堆积的影响。在测试间隔内，内部孔隙率随起始成分的变化很小。随着石英含量的增加，抛光产品的表面孔隙率增加。在研究的第一部分中获得的结果表明，起始和结束成分如何产生微结构并暗示其对瓷砖机械性能的影响，这将在本文的第二部分中进行分析。

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