TY - JOUR
T1 - Effect of Composition and Sintering Temperature on Reaction Heat of Fe-Al Reactive Material
AU - Wang, Xiaoyi
AU - Wang, Yangwei
AU - Wang, Zaicheng
AU - Jiang, Chunlan
AU - Li, Qiang
N1 - Publisher Copyright:
© 2017, Science Press. All right reserved.
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Micron Al and Fe powders were used as raw materials to prepare compacts, in which the mass ratio of Fe: Al were 3: 7, 4: 6 and 5: 5, by cold isostatic pressing. The effects of Fe-Al different composition proportion on reaction heat of compacts were studied by differential scanning calorimetry, in order to confirm the compact composition with maximum reaction heat. The Fe-Al reactive material with the above composition was prepared by pressureless sintering, and the influence of sintering temperature on the microstructure and reaction heat was also investigated. Results show that compact with the mass ratio of Fe: Al=4: 6 can release the maximum reaction heat, -589.8 J/g. When the sintering temperature is 540℃, a small amount of intermetallic compounds Al13Fe4 and Fe2Al5 are generated, which reduces the reaction heat, and is not favorable to the further spread of the reaction. However, when the sintering temperature is 530℃, no obvious intermetallic compound appears, and the reaction heat slightly decreases to -538.5 J/g.
AB - Micron Al and Fe powders were used as raw materials to prepare compacts, in which the mass ratio of Fe: Al were 3: 7, 4: 6 and 5: 5, by cold isostatic pressing. The effects of Fe-Al different composition proportion on reaction heat of compacts were studied by differential scanning calorimetry, in order to confirm the compact composition with maximum reaction heat. The Fe-Al reactive material with the above composition was prepared by pressureless sintering, and the influence of sintering temperature on the microstructure and reaction heat was also investigated. Results show that compact with the mass ratio of Fe: Al=4: 6 can release the maximum reaction heat, -589.8 J/g. When the sintering temperature is 540℃, a small amount of intermetallic compounds Al13Fe4 and Fe2Al5 are generated, which reduces the reaction heat, and is not favorable to the further spread of the reaction. However, when the sintering temperature is 530℃, no obvious intermetallic compound appears, and the reaction heat slightly decreases to -538.5 J/g.
KW - Composition proportion
KW - Intermetallic compounds
KW - Reaction heat
KW - Reactive materials
KW - Sintering temperature
UR - https://www.scopus.com/pages/publications/85049970341
M3 - Article
AN - SCOPUS:85049970341
SN - 1002-185X
VL - 46
SP - 3043
EP - 3047
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 10
ER -