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Formation of Titanium Carbide/Aluminum Oxide Nanocomposite Powder by High‐Energy Ball Milling and Subsequent Heat Treatment
Author(s) -
Li Jianlin,
Li Fei,
Hu Keao
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.tb00539.x
Subject(s) - materials science , nanocrystalline material , ball mill , titanium carbide , titanium , microcrystalline , carbide , microstructure , nanocomposite , metallurgy , powder mixture , chemical engineering , titanium powder , titanium oxide , aluminium , carbon fibers , composite material , composite number , nanotechnology , sintering , chemistry , engineering , crystallography
The preparation of titanium carbide/aluminum oxide (TiC/Al 2 O 3 ) nanocomposite powders from a mixture of titanium, carbon, and Al 2 O 3 powders via a high‐energy ball milling process and subsequent heat treatment was investigated. The microstructure development of the powder mixtures was monitored by X‐ray diffraction and transmission electron microscopy. The ball milling of an elemental carbon, titanium, and Al 2 O 3 powder mixture at ambient temperature resulted in the formation of TiC within 15 h of milling. With further milling of up to 25 h, the resulting powder mixture was composed of nanosized TiC particles and nanocrystalline carbon, titanium, and Al 2 O 3 . The nanocrystalline titanium and carbon were transformed into nanosized TiC particles after subsequent heat treatment. The final product was composed of nanosized TiC and microcrystalline Al 2 O 3. Most of the nanosized TiC particles were located within Al 2 O 3 grains.