Mechanical Properties of (Al2O3+Ni) and (Al2O3+Ni)/Ni Laminated Materials

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(Al2O3+Ni) and (Al2O3+Ni)/Ni laminated materials were prepared by tape casting and hot pressing sintering. The mechanical properties of (Al2O3+20wt%Ni) laminated composites were higher than those of (Al2O3+50wt%Ni) composites and Al2O3 sample. The strengthening in the (Al2O3+Ni) composites mainly results from microstructure refinement of the alumina grain size, cracks bridging and crack deflection by the Ni particles. Results showed that the strength and fracture toughness of (Al2O3+Ni)/Ni laminated materials were higher than those of Al2O3/Ni laminated materials with the same layer numbers and thickness ratio. The good mechanical properties of (Al2O3+Ni) and (Al2O3+Ni)/Ni laminated materials result from the second phase of Ni particles in Al2O3 layers.

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Periodical:

Key Engineering Materials (Volumes 353-358)

Edited by:

Yu Zhou, Shan-Tung Tu and Xishan Xie

Pages:

1447-1450

Citation:

K. H. Zuo et al., "Mechanical Properties of (Al2O3+Ni) and (Al2O3+Ni)/Ni Laminated Materials", Key Engineering Materials, Vols. 353-358, pp. 1447-1450, 2007

Online since:

September 2007

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$38.00

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