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Effect of Fe and Cr Addition on the Sintering Behavior of ZrB 2 Produced by Self‐Propagating High‐Temperature Synthesis
Author(s) -
Mishra Suman Kumari,
Das Swapan Kumar,
Ray Ajoy Kumar,
Ramachandrarao P.
Publication year - 2002
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2002.tb00540.x
Subject(s) - sintering , materials science , eutectic system , phase (matter) , swelling , metallurgy , matrix (chemical analysis) , microstructure , composite material , chemical engineering , chemistry , organic chemistry , engineering
An investigation of the sintering behavior of ZrB 2 powder with Fe and Cr (0 to 20 wt%) addition was conducted. It was observed that Fe addition helps to enhance the density of ZrB 2 only up to 10 wt%. Further addition of Fe degrades the sintering by segregation of Fe‐rich phases. Formation of a eutectic phase containing a Fe:Zr ratio of 92.57:7.43 was also found in Fe‐added samples. The addition of Cr to a ZrB 2 matrix was found to result in swelling of the samples, leading to several cracks.