Paper Title:
Synthesis of Al2O3-Ni3Al Cermets by Room-Temperature Ball Milling of Al, Ni and Al2O3 Mixtures
  Abstract

The synthesis of Al2O3-Ni3Al cermets with interpenetrating networks has been performed via a pressureless reactive sintering process. The synthesis has been induced by means of a solidstate reaction of Al + Ni + Al2O3 powders under intensive ball milling. The mixtures have been heat treated in an inert atmosphere (N2) in order to control the exothermic reaction between Ni and Al, with special care at temperatures near the melting point of Al. Dense and homogeneous microstructures have been obtained, composed by a matrix of Al2O3 reinforced with a Ni3Al intermetallic. Thermodynamic calculations indicate that such a cermet can be fabricated by in situ reaction synthesis. This suggests that a pressureless reaction sintering process may be a general route to synthesizing cermets with the prospect for the production of cermets with interpenetrating networks.

  Info
Periodical
Edited by
H. Balmori-Ramírez, M. Brito, J.G. Cabañas-Moreno, H.A. Calderón-Benavides, K. Ishizaki and A. Salinas-Rodríguez
Pages
123-128
DOI
10.4028/www.scientific.net/MSF.509.123
Citation
E. Rocha-Rangel, M.S. Moreno-Guerrero, A. Velásquez-Naranjo, E. Refugio-García, "Synthesis of Al2O3-Ni3Al Cermets by Room-Temperature Ball Milling of Al, Ni and Al2O3 Mixtures", Materials Science Forum, Vol. 509, pp. 123-128, 2006
Online since
March 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ali Reza Kamali, S.M.M. Hadavi, J. Baboee, Hekmat Razavizadeh
Abstract:Titanium Aluminide-based composites with Al2O3 reinforcement can be produced via reaction of Al with TiO2. These composites are considered...
7
Authors: Lilia Shevtsova, Alexander Anisimov, Sergey Nagavkin
Chapter 2: Properties of Materials, Electrophysical and Mechanical Methods and Technologies of Materials Processing
Abstract:PN85U15 - Ni composites were obtained by spark plasma sintering (SPS) of the powder mixture consisted of nickel and nickel aluminide....
299
Authors: Lilia Shevtsova, Tatyana Sameyshcheva, Dmitry Terentyev, Iuliia Malyutina, Aleksey Larichkin, Vladimir Malikov
Chapter 2: Applied Materials Science in Machine Building
Abstract:Structure and mechanical properties of the PN85YU15 - Ni composite materials obtained by spark plasma sintering were investigated. Two types...
151
Authors: Carolyne Oliveira Davi, Miriam K.H. Yassuda, Rosa Maria Rocha
Chapter 3: Thermo-Mechanical Ceramics
Abstract:Zirconium diboride (ZrB2) is a material of particular interest because of the excellent and unique property combination of high...
97