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Effect of Starch on Sintering Behavior for Fabricating Porous Cordierite Ceramic

机译：淀粉对堇青石多孔陶瓷烧结性能的影响

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摘要

Porous cordierite ceramics were prepared with starch as pore-forming agent by solid-state method. The green bodies were sintered at 1,100-1,400 ℃ for 2 h. The characterization was focused on thermal analysis, phase evolution, sintering behavior, porosity and micro-structural changes. The results show that cordierite becomes the main crystallization phase at 1,200 ℃. The shrinkage behavior shows the most obvious dependence on the sintering temperature and starch content, and it can be divided into three stages. Moreover, the open porosity increases with the increase of starch content, but the pore-forming effectivity decreases. Nevertheless, compared with the open porosity curves, the bulk density curves are more in line with the linear rule. The micro-photographs show the densification process with the sintering temperature and the variation of pore connectivity with the starch content.
机译：以淀粉为成孔剂，通过固相法制备了多孔堇青石陶瓷。将生坯在1,100-1,400℃下烧结2小时。表征的重点是热分析，相变，烧结行为，孔隙率和微观结构变化。结果表明，堇青石成为1200℃的主要结晶相。收缩行为表现出对烧结温度和淀粉含量的最明显的依赖性，并且可以分为三个阶段。此外，开孔孔隙度随淀粉含量的增加而增加，但成孔效率降低。然而，与开孔率曲线相比，堆积密度曲线更符合线性规则。显微照片显示了烧结温度下的致密化过程以及孔连通性随淀粉含量的变化。

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  • 来源
    《High temperature materials and processes》 |2016年第9期|955-961|共7页
  • 作者

    Ye Li; Wei Cao; Lunlun Gong; Ruifang Zhang; Xudong Cheng;

  • 作者单位

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, PR China;

    State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    cordierite; porous ceramic; starch; sintering behavior; microstructure;

    机译：堇青石多孔陶瓷淀粉;烧结行为微观结构;

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