Paper Title:
Properties of AlN-Based Magnesium-Matrix Composites Produced by Pressureless Infiltration
  Abstract

A novel ceramic-metal composite with continuous interconnected ceramic and metal phases has been fabricated from sintered porous particulate AlN preforms infiltrated with magnesium. The 48 vol. % AlN composites are fabricated by pressureless infiltration in argon in the temperature range of 870 °C to 960 °C. An increase in the infiltration rate is observed as the temperature increases. Results on the mechanical characterization of the composites indicate an elastic modulus of 90 to 110 GPa and hardness of 70 to 80 HRB. The tensile strength calculated by the shear punch test method ranges from 260 to 390 MPa. As a general rule, it is observed that the lower the infiltration temperature, the higher the tensile strength. The linear coefficient of thermal expansion of the infiltrated composites in the temperature range of 215 to 315 °C is 7.65 x 10-6 °C-1. This value is lower than those found for similar Al/AlN composites reported in the literature.

  Info
Periodical
Edited by
H. Balmori-Ramírez, M. Brito, J.G. Cabañas-Moreno, H.A. Calderón-Benavides, K. Ishizaki and A. Salinas-Rodríguez
Pages
105-110
DOI
10.4028/www.scientific.net/MSF.509.105
Citation
C.A. León, Y. Arroyo, E. Bedolla, E.A. Aguilar, R. A.L. Drew, "Properties of AlN-Based Magnesium-Matrix Composites Produced by Pressureless Infiltration", Materials Science Forum, Vol. 509, pp. 105-110, 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: Woo Gwang Jung, Hoon Kwon
Abstract:BN/Al(-Mg) metal matrix composite (MMC) was fabricated by the pressureless infiltration technique. The phase characterizations of the...
301
Authors: Diletta Sciti, Stefano Guicciardi, Cesare Melandri, A. Bellosi
913
Authors: Aleksandr P. Amosov, Y.V. Titova, I.Y. Timoshkin, Antonina A. Kuzina
Chapter 3: Advanced Materials and Nanotechnologies
Abstract:A review of the methods of obtaining and properties of aluminum matrix composites, discretely reinforced with ceramic particles and...
302