Formation Behavior and Microstructure of Ca-α-Sialon

Abstract

Abstract: Ca-α-Sialons for the compositions M_xSi_3-xAl_xO_xN_16-x with x ranging from 0.3 to 2.0 were prepared by hot-pressing technique. The reaction
sequence, formation behavior, variation of lattice parameters with the compositions and microstructure of Ca-α-Sialon were reported in this paper. The result
showed that the crystalline phase of Ca-α-Sialon in the sintered material consists of α-Sialon and AlN-polytypoid 21R when x is equal to or greater than 1.0 and the 21R content increases as the x-value increases. TEM observation
confirmed the phase assemblages of Ca-α-Sialon samples and further revealed the existence of elongated α’grain in the materials.

Key words: Ca, Sialon, formation behavior, microstructure

CLC Number:

TB323

WANG Pei-Ling,JIA Ying-Xin,ZHANG Cheng,SUN Wei-Ying. Formation Behavior and Microstructure of Ca-α-Sialon[J]. Journal of Inorganic Materials.

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Formation Behavior and Microstructure of Ca-α-Sialon

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