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利用X射线衍射仪，对冲击波（压力为9．SGPa）处理的AIN粉体的衍射峰展宽现象进行分析，得到粉体内平均微观应变为2．85×10-3；相应的位错密度为1011／cm2；体内储存的缺陷能为0．36Cal／g．研究了以冲击波处理的AIN粉体为原料，在添加6Wt％以Dy2O3为主的助烧结剂的低温无压烧结过程中，缺陷对低温烧结和热导率的影响．结果表明：冲击波处理AIN粉体所致缺陷能，除了可以促进烧结；同时还起到了去除AIN晶格中的Al2O3，及提高热导率的作用．粉体中储存的能量在烧结过程中释放，使冲击粉试样比未冲击粉试样达到最大线收缩速率时的温度降低25℃；试样在1610℃，无压烧结4h，冲击粉试样密度为理论值的98％，而未冲击试样仅为80％．位错在烧结过程中为氧扩散提供渠道，使氧的扩散除了通过溶解一析出过程，还有固态扩散的作用，而这些位错在烧结后期得到回复．
The diffraction peak broadening phenomenon of AIN powder treated by shock wave (pressure of 9.SGPa) was analyzed by X-ray diffractometer, and the average micro-strain in powder was 2.85 × 10-3. The corresponding dislocation density was 1011 / Cm2; in vivo storage defects can be 0.36Cal / g. The effects of the defects on low temperature sintering and thermal conductivity of the AIN powder treated with shock wave were investigated in the low pressure sintering process of sintering aided sintering with 6wt% Dy2O3. The results show that the shock wave can not only promote the sintering but also remove the Al 2 O 3 in AIN lattice and improve the thermal conductivity. The energy stored in the powder is released during sintering so that the temperature at which the impact powder sample reaches the maximum linear shrinkage rate is 25 ° C lower than that at the maximum impact rate. The sample is sintered at 1610 ° C. for 4 hours without pressure sintering, The density is 98% of theory, while the unaffected specimen is only 80%. Dislocations provide a conduit for oxygen diffusion during sintering, allowing diffusion of oxygen in addition to dissolution and precipitation processes, as well as solid-state diffusion, and these dislocations are recovered later in the sintering process.