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Novel Method to Prepare Electroconductive Titanium Nitride–Aluminum Oxide Nanocomposites
Author(s) -
Li Jingguo,
Gao Lian,
Guo Jingkun,
Yan Dongsheng
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.tb00162.x
Subject(s) - nanocomposite , tin , materials science , titanium nitride , nitride , hot pressing , titanium , precipitation , electrical resistivity and conductivity , tin oxide , chemical engineering , aluminium , oxide , metallurgy , composite material , layer (electronics) , physics , meteorology , electrical engineering , engineering
A novel method for the preparation of TiN–Al 2 O 3 nanocomposites was developed. TiN–Al 2 O 3 nanocomposite powders were prepared by the direct nitridation of TiO 2 –Al 2 O 3 nanocomposite powders that were derived from the simultaneous hydrolysis of tetra‐butyl titanate and precipitation of aluminum nitrate. Dense sintered bodies of these TiN–Al 2 O 3 nanocomposite powders were obtained by hot pressing at 1450°–1650°C and 30 MPa for 60 min. The resistivity of nanocomposite reaches a minimum (1.5 × 10 −3 Ω·cm) at 25 vol% TiN additions. The percolation concentration of nanocomposite is ∼10 vol% TiN.