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The System Zirconium—Carbon
Author(s) -
SARA R. V.
Publication year - 1965
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.1151-2916.1965.tb14729.x
Subject(s) - eutectic system , zirconium , carbon fibers , liquidus , materials science , phase (matter) , phase boundary , phase diagram , chemistry , metallurgy , composite material , microstructure , alloy , organic chemistry , composite number
Phase relations in the system zirconium‐carbon were established by DTA, X‐ray, and metallo‐graphic methods. Only one phase, a monocar‐bide with the NaCl structure, was found. The low‐carbon phase boundary for the monocarbide contains 38.5 at.7, carbon between 1900’and 3300OC. The carbon‐rich boundary between 2850” and 330O°C is at 48.9 at.% carbon. ZrC melts congruently at 342O°C and 46 at.% carbon. The lattice parameter versus composition curve shows a maximum at 46 at.% carbon. The Zr‐ZrC eutectic is at 186O°C and 1 at.% carbon; the Zr‐ZrC eutectic is at 285O°C and 65 at.% carbon. Liquidus curves are inferred from the invariant points.