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- Title
Novel Fabrication Route to Al<sub>2</sub>O<sub>3</sub>–TiN Nanocomposites Via Spark Plasma Sintering.
- Authors
Lianjun Wang; Ting Wu; Wan Jiang; Jianlin Li; Lidong Chen
- Abstract
A novel method for the preparation of Al2O3–TiN nanocomposites was developed. A mixture of TiO2, AlN, and Ti powder was used as the starting material to synthesize the Al2O3–TiN nanocomposite under 60 MPa at 1400°C for 6 min using spark plasma sintering. X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy were used for detailed microstructural analysis. Dense (up to 99%) nanostructured Al2O3–TiN composites were successfully fabricated, the average grain size being less than 400 nm. The fracture toughness ( KI C) and bending strength (σb) of the nanostructured Al2O3–TiN composites reached 4.22±0.20 MPa·m1/2 and 746±28 MPa, respectively.
- Subjects
NANOSTRUCTURED materials; COMPOSITE materials; ALUMINUM oxide; TITANIUM nitride; MICROSTRUCTURE; X-ray crystallography; TRANSMISSION electron microscopy; SCANNING electron microscopy
- Publication
Journal of the American Ceramic Society, 2006, Vol 89, Issue 5, p1540
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2006.00945.x