NDLI: Effect of relative density on the compressive flow behaviour of cordierite and cordierite: mullite honeycombs

Content Provider	Springer Nature Link
Author	Saha, B. P. Kumari, Sweety Johnson, R. Eswara Prasad, N.
Copyright Year	2010
Abstract	Monolithic ceramic materials, especially the materials that are suitable for making honeycombs, have not been extensively used in many structural applications due to their inherent brittleness. However, the honeycomb structures made from these materials have recently become attractive for certain structural applications and hence, are investigated for their compressive flow behaviour at ambient and elevated temperatures. In this study, cordierite (2MgO2Al$_{2}$O$_{3}$5SiO$_{2}$) and cordierite:mullite (2MgO2Al$_{2}$O$_{3}$5SiO$_{2}$:3Al$_{2}$O$_{3}$ 2SiO$_{2}$) honeycombs with the relative densities of 0.3 and 0.7 have been evaluated to determine their compressive flow behaviour. For the sake of comparison, solid specimens of cordierite with a relative density of 1.0 were also prepared and subjected to compressive testing. The results obtained from these solid specimens were compared with those of the honeycombs to bring out the property advantages that accrue by adopting to the honeycomb technology. Unlike solid specimens, the honeycombs were found to exhibit significant extent of stable crack extension and hence, a considerable increase in the toughness. Further the results from high temperature compressive testing have revealed that the compressive strength increases with increase in test temperature, exhibiting a maximum peak compressive strength at 1073 K for cordierite honeycombs and at 1273 K for cordierite:mullite honeycombs.
Starting Page	701
Ending Page	706
Page Count	6
File Format	PDF
ISSN	09722815
Journal	Transactions of the Indian Institute of Metals
Volume Number	63
Issue Number	4
e-ISSN	09751645
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-11-03
Publisher Place	India
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	honeycombs cordierite cordierite:mullite relative density compressive flow behaviour Tribology, Corrosion and Coatings Materials Science Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys

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