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Intermediate Phases in Ti 3 SiC 2 Synthesis from Ti/SiC/C Mixtures Studied by Time‐Resolved Neutron Diffraction
Author(s) -
Wu Erdong,
Kisi Erich H.,
Riley Daniel P.,
Smith Ronald I.
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.tb00584.x
Subject(s) - materials science , neutron diffraction , max phases , carbide , ternary operation , crystallography , diffraction , sintering , phase (matter) , silicon carbide , x ray crystallography , phase transition , analytical chemistry (journal) , metallurgy , crystal structure , chemistry , condensed matter physics , optics , physics , organic chemistry , computer science , programming language , chromatography
The reactive sintering of 3Ti/SiC/C to form the layered ternary carbide Ti 3 SiC 2 was studied in situ by time‐resolved neutron powder diffraction. A number of intermediate processes occur during the synthesis beginning with the α‐β transition in Ti. Concurrent with the α‐β transition, two intermediate phases, TiC x and Ti 5 Si 3 C x ( x ≤ 1), form. These phases account for almost the entire sample in the range 1500–1600°C beyond which they react with each other and a small amount of free C to form the product phase Ti 3 SiC 2 .