For the Mg and Fe304 system, the Gibbs free energy was calculated in order to determine the possible reactions that may occur. Differential thermal analysis was tested to fix the reaction temperature. Adiabatic temperature of the system was also calculated, and the results verified that the system has the possibility that may undergo the in-situ reaction thermal explosion combustion synthesis reaction. With the proportion Mg（wt%） = 29.1%, the reaction products Fe/MgO nano-composite magnetic particles distributed evenly, the average diameter was 40nm, the coercivity was 7.4920e, saturated magnetization was 78.815emu / g, residual magnetization was 0.209emu/g, that was close to superparamagnetization, it will be one kind of promising targeted carrier materials.%对Mg和如D4体系，从系统的吉布斯自由能、差热分析确定系统可能发生的反应及反应发生的温度；对体系的绝热温度进行了计算，验证了体系发生原位反应一热爆燃烧合成的可能性。当反应物比例Mg（wt％）：29．1％时，热爆燃烧合成的Fe和MgO纳米复合磁性颗粒分布均匀，平均粒径为40nm，振动样品磁强计VSM测试结果为矫顽力7．4920e，饱和磁化强度78．815emu／g，剩磁0．209emu／g，接近超顺磁性，是很有前景的磁性靶向载体材料。
展开▼
