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Synthesis of Ti 3 AlC 2 Powders Using Sn as an Additive
Author(s) -
Mingxing Ai,
Hongxiang Zhai,
Yang Zhou,
Zhaoyun Tang,
Zhenying Huang,
Zhili Zhang,
Shibo Li
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00818.x
Subject(s) - calcination , materials science , tin , titanium , graphite , chemical engineering , volume (thermodynamics) , metallurgy , mineralogy , catalysis , chemistry , thermodynamics , organic chemistry , physics , engineering
Nearly pure Ti 3 AlC 2 powders have been synthesized by calcining a mixture of titanium, aluminum, and graphite powders using tin powders as additives. Four recipes with different mole ratios of Ti:Al:C:Sn were examined at calcining temperatures from 1300° to 1500°C. The addition of Sn effectively inhibited the generation of thermal explosion when the volume of the starting materials is larger, and considerably reduced the lower‐limit calcining temperature. The nearly pure Ti 3 AlC 2 powders can be obtained reliably on a large scale by calcining the starting materials with a mole ratio of 3Ti:1Al:1.8C:0.2Sn at temperatures from 1350° to 1500°C.