Publication | Open Access
Porous ceramic - metal composites obtained by infiltration methods
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2013
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A pressure-vacuum infi ltration (T = 720 C, p = 15 MPa, t = 15 min) and gas-pressure infi ltration (GPI) in an autoclave (T = 700C, p=4 MPa, t=5 min) were applied for infi ltration of porous Al 2 O 3 ceramics by cast aluminum alloy.Eff ect of the method of the infi ltration on the microstructure and mechanical properties of ceramic-metal composites, was studied.Ceramic preforms were formed by method of copying the cellular structure of the polymer matrix.The results of the X-ray tomography proved very good infi ltration of the pores by the metal for each method.