Microstructure and Mechanical Properties of Spark Plasma Sintered ZrO2-Al2O3-TiC0.5N0.5 Nanocomposites
| Periodical | Solid State Phenomena (Volume 106) |
|---|---|
| Main Theme | From Nanopowders to Functional Materials |
| Edited by | Radu Robert Piticescu, Witold Lojkowski and John R. Blizzard |
| Pages | 153-160 |
| DOI | 10.4028/www.scientific.net/SSP.106.153 |
| Citation | Kim Vanmeensel et al., 2005, Solid State Phenomena, 106, 153 |
| Online since | September, 2005 |
| Authors | Kim Vanmeensel, K.Y. Sastry, J. Hennicke, Guy Anné, Dongtao Jiang, A.I. Laptev, Jef Vleugels, Omer Van der Biest |
| Keywords | Ceramic Nanocomposite, Fracture Toughness, Spark Plasma Sintering (SPS), TiC0.5N0.5, Y-TZP |
| Price | US$ 28,- |
Future materials for wear resistant components require a combination of excellent mechanical properties such as hardness and toughness, short processing times and good electrical conductivity to facilitate shaping by electro discharge machining (EDM). In this work, the hardness and fracture toughness of t-ZrO2 based electro conductive composites was optimised, while short processing times below 20 minutes using spark plasma sintering were sufficient to obtain near fully dense materials. The influence of powder processing technique using TiC0.5N0.5 as the starting powder and yttria as a stabiliser on the mechanical properties of ZrO2-TiC0.5N0.5-Al2O3 based composites was investigated. Fully dense Y-TZP based composites possessed an excellent toughness of 9.2 MPa.m1/2 and an increased Vickers hardness of 1397 kg/mm².
