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Near‐Net‐Shape Fabrication of T i 3 S i C 2 ‐based Ceramics by Three‐Dimensional Printing
Author(s) -
Ma Yuzhao,
Yin Xiaowei,
Fan Xiaomeng,
Wang Lei,
Greil Peter,
Travitzky Nahum
Publication year - 2014
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12321
Subject(s) - materials science , infiltration (hvac) , fabrication , ceramic , alloy , composite material , shrinkage , porosity , medicine , alternative medicine , pathology
This paper focuses on the preparation of near‐net‐shaped dense T i 3 S i C 2 ‐based materials via an indirect three‐dimensional printing (3 D printing) and postreactive melt infiltration ( RMI ) processes. T i C preforms with bimodal pore size distribution were fabricated through 3 D printing, followed by the infiltration of Si melt and Al–Si alloy ( A l 40 S i 60 and A l 70 S i 30 ). Dense composites with density of ~4.1 g/cm 3 were obtained after the infiltration. No volume shrinkage was obtained after the reactive infiltration with A l–Si alloy. The participation of Al during the infiltration process promoted the formation of T i 3 S i C 2 . The as‐fabricated T i 3 S i C 2 ‐based materials showed enhanced mechanical and electromagnetic interference shielding properties.