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GdAlO3–ZrO2: A Ductile Ceramic Composite

  1. M. Panneerselvam1,
  2. N. Aggarwal2,4,
  3. G.N. Subanna3,
  4. K.J. Rao

Article first published online: 24 APR 2003

DOI: 10.1002/adem.200300331

Issue

Advanced Engineering Materials

Advanced Engineering Materials

Volume 5, Issue 4, pages 243–246, April, 2003

Additional Information

How to Cite

Panneerselvam, M., Aggarwal, N., Subanna, G.N. and Rao, K.J. (2003), GdAlO3–ZrO2: A Ductile Ceramic Composite. Adv. Eng. Mater., 5: 243–246. doi: 10.1002/adem.200300331

Author Information

  1. 1

    Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India

  2. 2

    Indian Academy of Science, C.V. Raman Avenue, P. B. 8005, Sadashivanagar, Bangalore-560012, India

  3. 3

    Materials Research Centre, Indian Institute of Science, Bangalore-560012, India

  4. 4

    Present address: Defense Metallurgical Research Laboratory, Hyderabad-500058, India

Publication History

  1. Issue published online: 24 APR 2003
  2. Article first published online: 24 APR 2003
  3. Manuscript Received: 16 NOV 2002

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Keywords:

  • Ceramics;
  • Microwave processing;
  • Toughness

A ceramic with a high fracture toughness KIC that is close to the respective values of cast iron and Mg alloys has been fabricated by microwave sintering of GdAlO3 and ZrO2 into composite materials of different molar fractions; for the 80/20 composite (see Figure for an SEM image) KIC reaches the remarkable value of 17.5 Mpa m1/2. Such composites may become extremely valuable for structural applications in advanced technologies.

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