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首页> 外文期刊>Journal of the European Ceramic Society >Highly porous hybrid particle-fibre ceramic composite materials for use as diesel particulate filters
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Highly porous hybrid particle-fibre ceramic composite materials for use as diesel particulate filters

机译：用于柴油颗粒过滤器的高度多孔杂化颗粒纤维陶瓷复合材料

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摘要

This paper describes an investigation into the potential of a novel type of ceramic composite for use as Diesel Particulate Filters (DPFs). Materials for this application need to be highly permeable to gas flow, capable of filtering and retaining fine particulate and be stable under demanding thermo-mechanical conditions. Novel materials have been produced, via a conventional blending, cold pressing and sintering route, containing coarse alumina particles and/or fine alumina fibres. Several thermal and mechanical properties are measured, for a range of fibre contents. Thermal Shock Resistance (TSR) has been investigated both experimentally and via evaluation of a TSR merit index, based on a combination of properties. This type of material shows promise in terms of thermo-mechanical stability, particularly with high fibre content. There are also indications that such composites would be suitable for DPF usage in terms of permeability levels and the filtration of fine particulate.
机译：本文介绍了一种用于用作柴油颗粒过滤器（DPF）的新型陶瓷复合材料的潜力的研究。 本申请的材料需要高度渗透到气流，能够过滤和保持细颗粒并在要求苛刻的热机械条件下稳定。 通过含有粗氧化铝颗粒和/或细氧化铝纤维，通过常规混合，冷压和烧结途径生产新的材料。 测量几种热和机械性能，用于一系列纤维含量。 基于特性的组合，已经通过实验和通过评估了TSR优异指数来研究了热抗冲击性（TSR）。 这种类型的材料在热机械稳定性方面显示了许可，特别是具有高纤维含量。 还有迹象表明，这种复合材料在渗透率水平和细颗粒的过滤方面适用于DPF使用。

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