The thermal conductivity and secondary-phase aluminates of aluminum nitride with different sintering aids of rare-earth oxides Sm-2O-3? Dy-2O-3? Sm-2O-3-Dy-2O-3 are studied from the viewpoint of microcryogenics.

• 本文从低温微结构工程学的观点 ；比较AlN中加入Sm2 O3、Dy2 O3、Sm2 O3 Dy2 O3稀土烧结助剂的热导率、第二相铝酸盐的变化 ；探讨了铝空位和氧影响AlN的热导性 .