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In Situ Synthesis of TiN Particulate/Titanium Silicide Matrix Composite Powder by Mechanochemical Process
Author(s) -
Shim JaeHyeok,
Byun JungSoo,
Cho Young Whan
Publication year - 2004
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.1151-2916.2004.tb06330.x
Subject(s) - materials science , tin , crystallite , ball mill , transmission electron microscopy , composite number , scanning electron microscope , nanometre , titanium powder , silicide , metallurgy , titanium , chemical engineering , composite material , silicon , nanotechnology , engineering
TiN particulate/Ti 5 Si 3 matrix composite powder has been synthesized from Ti and Si 3 N 4 powders employing high‐energy ball milling. The milled powders have been characterized by X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy. TiN/Ti 5 Si 3 composite powder is formed by a displacement reaction between Ti and Si 3 N 4 during milling, and the reaction progresses in a mechanically induced self‐propagating reaction form. The milled powder consists of TiN crystallites of a few hundred nanometers embedded in Ti 5 Si 3 matrixes. After 20 h of milling, the crystallite size of TiN becomes about 5 nm.