| Title |
Fabrication of Ni3Al Intermetallic Alloy by Combustion Synthesis (1) ( Effect of Heating Rate on the Microstructure and Combustion Temperature ) |
| Authors |
손인진(In Jin Shon); 유명기(Myoung Ki You) |
| Abstract |
The effect of heating rate on the combustion temperature and microstructure of products formed by combustion synthesis was investigated. Combustion synthesis did not occur at the heating rate below 1℃ /min. Ignition temperature is nearly constant at the heating rate between 2℃/min and 60℃/min and then increased with heating rate. Both temperature rise caused by exothermic raction and the density of combustion synthesized product increased with increasing heating rate up to about 10℃/min. and then remained nearly constant. Below the heating rate of 10℃/min, Al₃Ni, Al₃Ni₂NiAl intermetallic compund is formed and Ni, Al remain, but over the heating rate, Ni₃Al intermetaltic compound is well obtained. |