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Reaction in the Al‐TiO 2 ‐CB 4 System and in Situ Synthesis of an Al/(TiC+TiB 2 +α‐Al 2 O 3 ) Composite
Author(s) -
Wang Z.,
Liu X.,
Bian X.
Publication year - 2004
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200400041
Subject(s) - materials science , differential scanning calorimetry , aluminium , composite number , diffraction , in situ , x ray crystallography , analytical chemistry (journal) , metallurgy , composite material , thermodynamics , chemistry , physics , chromatography , meteorology , optics
Differential scanning calorimeter, X‐ray diffraction and thermodynamic analysis results show that the Al‐TiO 2 ‐CB 4 mixture can react in the Al matrix to form TiC, TiB 2 , and α‐Al 2 O 3 phases between 860 and 1040 °C according to the following equation: 4 Al + 3 TiO 2 + CB 4 = TiC + 2 TiB 2 + 2 α‐Al 2 O 3 . Using this reaction system, an Al/(TiC + TiB 2 + α‐Al 2 O 3 ) composite was in situ synthesized successfully in molten aluminum heated by middle‐frequency induction furnace.