Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (5): 903-906.

• Research paper • Previous Articles     Next Articles

FABRICATION AND PROPERTIES OF Al 2O 3 /Ni COMPOSITES

L.X.Ding 1) ,F.Zhang 2) ,Z.J.Zhao 3) ,Y.M.Wang 1) and X.D.Sun 2) 1) Department of Materials, School of Mechanical Engineering, Shenyang University, Shenyang 110044, China 2) School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China 3) Liaoning Testing Research Center, Shenyang 110015, China   

  • Received:1999-10-25 Revised:1999-10-25 Online:1999-10-25 Published:2009-10-10

Abstract: Ceramic matrix composites consisting of an alumina matrix containing 20 vol% nickel particles has been fabricated using hot pressing technique. It is found that fracture toughness of the composite is much higher than the alumina matrix. This is due to the energy dissipation of the nickel particles that bridge the propagating cracks.

Key words: alumina, nickel, composites, toughness