研究了粉煤灰经过机械研磨后的热学性质的变化。不同的机械研磨方式 ,粉煤灰的热学性质表现不一样 ;对于同一种机械研磨方式 ,不同粉煤灰的热学性质有一些共同之处。粉煤灰机械处理之后热学活性的增加 ,机械热效应在研磨中起重要作用。DTA峰温的提前 ,实质是粉煤灰颗粒在机械能的作用下位能升高 ,不稳定趋势加大 The change of thermal properties of fly ash after mechanical grinding was studied. Different mechanical grinding methods have different thermal properties of fly ash; for the same mechanical grinding method, the thermal properties of different fly ash have some similarities. Thermal mechanical activity after fly ash increases, mechanical thermal effect plays an important role in the grinding. DTA peak temperature ahead of time, in essence, fly ash particles in the role of mechanical energy potential increased instability increased