Paper Title:
Microstructure and Mechanical Properties of Ca-α-Sialon with Low Oxygen Content
  Abstract

Ca-α-sialons with low oxygen content were fabricated at 1800°C by hot pressing. The phase and microstructure were characterized by XRD and SEM. The calculated lattice parameter reveals that 20~30% Ca2+ ions still exist in the grain boundary phase of Ca-α′. A large amount of Ca-containing liquid phase efficiently promotes the anisotropic growth of α′ grains in Ca-rich composition. Reinforced only by elongated α′ grains, the fracture toughness of Ca-α′ can reach 4.96 MPa•m1/2.

  Info
Periodical
Edited by
Hyungsun Kim, JianFeng Yang, Tohru Sekino, Masakazu Anpo and Soo Wohn Lee
Pages
412-415
DOI
10.4028/www.scientific.net/MSF.658.412
Citation
Z. F. Yang, H. Wang, X. M. Min, W. M. Wang, Z. Y. Fu, "Microstructure and Mechanical Properties of Ca-α-Sialon with Low Oxygen Content", Materials Science Forum, Vol. 658, pp. 412-415, 2010
Online since
July 2010
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