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首页> 外文会议>Advances in bioceramics and porous ceramics III >ALUMINUM TITANATE COMPOSITES FOR DIESEL PARTICULATE FILTER APPLICATIONS
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ALUMINUM TITANATE COMPOSITES FOR DIESEL PARTICULATE FILTER APPLICATIONS

机译：柴油微粒过滤器应用的钛酸铝复合材料

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摘要

Porous composites of aluminum titanate and mixed strontium/calcium feldspar are used as a material in diesel particulate filter applications because of their low thermal expansion, high thermal shock resistance, high heat capacity, high chemical resistance to ash and their ability to be formed into porous materials with porosity >50% with pore sizes that allow efficient filtering of particulate matter within a wide size range without creating an undesirably high backpressure. In the present work, reaction-templated growth of aluminum titanate is explored, where during its high temperature formation aluminum titanate conserves the template morphology and develops texture. The growth of aluminum titanate from simple oxide starting materials is constrained by a number of thermodynamic, kinetic, crystallographic and morphological factors. We have investigated the impact of template shape and crystallographic orientation in single crystalline and polycrystalline reacting mixtures on the material microstructure, its crystallographic texture and the resulting material porosity and thermo-mechanical properties. Reaction-templating is used to derive materials that cover a wide range of porosity, pore size and shape and, in specific cases, also demonstrate enhanced strength.
机译：钛酸铝和锶/钙钙长石混合的多孔复合材料由于其低热膨胀，高抗热冲击性，高热容量，高抗灰分性和形成多孔性的能力而被用作柴油机微粒过滤器的材料。孔隙率> 50％的材料，其孔径可在较大的尺寸范围内有效过滤颗粒物，而不会产生不希望的高背压。在目前的工作中，探索了以反应为模板的钛酸铝的生长，在钛酸铝的高温形成过程中，钛酸铝保持了模板的形态并发展了质地。钛酸铝从简单氧化物原料的生长受到许多热力学，动力学，晶体学和形态学因素的限制。我们研究了单晶和多晶反应混合物中模板形状和晶体学取向对材料微结构，晶体学织构以及所产生的材料孔隙率和热机械性能的影响。反应模板用于获得覆盖广泛孔隙度，孔径和形状的材料，在特定情况下还显示出增强的强度。

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  • 来源
  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US)
  • 作者

    Monika Backhaus-Ricoult; Chris Glose; Patrick Tepesch; Bryan Wheaton; Jim Zimmermann;

  • 作者单位

    Crystalline Materials Research or Characterization Science, Science Technology Corning Incorporated, Corning NY 14831, USA;

    rnCrystalline Materials Research or Characterization Science, Science Technology Corning Incorporated, Corning NY 14831, USA;

    rnCrystalline Materials Research or Characterization Science, Science Technology Corning Incorporated, Corning NY 14831, USA;

    rnCrystalline Materials Research or Characterization Science, Science Technology Corning Incorporated, Corning NY 14831, USA;

    rnCrystalline Materials Research or Characterization Science, Science Technology Corning Incorporated, Corning NY 14831, USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物材料学;
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