在Dy-β-SiAlON组份中，分别以Sm3+和Y3+部分取代Dy3+，观察混合稀土添加剂对致密化行为、显微结构和力学性能的影响．研究结果表明，以Sm3+取代Dy3+有助于材料的致密化和力学性能的提高，而以Y3+取代Dy3+则没有明显的效果．研究中还发现，稀土元素Sm3+的加入，有助于抑制β’晶粒生长．
The effects of mixed rare earth oxides on densification, microstructure and mechanical properties Dy-β-SiAlON ceramics were investigated. It was found that the densities and mechanical properties were improved while Dy3+ was half replaced by Sm3+, but there was no such effect found while replaced by Y3+. It was also observed that the growth of β-SiAlON grains was restrained while Sm2O3 was added.
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