几种高岭土的组成与可塑性研究

Bulletin of the Chinese Ceramic Society(2014)

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Abstract
采用X射线荧光光谱仪(XRF)、X射线衍射仪(XRD)、透射电子显微镜(TEM)、激光粒度仪及可塑性仪对龙岩高岭土、临沧高岭土和星子高岭土的组成、结构形貌和可塑性进行了表征.结果表明,龙岩高岭土主要是由片状高岭石和伊利石及管状多水高岭石组成,其结晶度较差,Fe2O3和TiO2含量低,颗粒尺寸最小,d50为5.12 μm,可塑性最好;临沧高岭土则大部分为呈卷曲短柱状的多水高岭石,并含有少量的片状高岭石,颗粒尺寸较小,d50为8.45μm,可塑性差;星子高岭土大部分为片状结构,粒度较粗,d50为14.77 μm,可塑性差.
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