Near-zero thermal expansion of In2(1-x)(HfMg)xMo3O1 2 with tailored phase transition

作者：Cheng, Yong-Guang; Mao, Yan-Chao; Liu, Xain-Sheng; Yuan, Bao-He; Chao, Ming-Ju; Liang, Er-Jun^*

来源：Chinese Physics B, 2016, 25(8): 086501.

DOI：10.1088/1674-1056/25/8/086501

• phase transition
• thermal expansion
• thermal analysis
• Raman spectrum

Solid solutions of In2(1-x)(HfMg)(x)Mo3O12 are synthesized by solid state reaction with the aim to reduce the phase transition temperature of In2Mo3O12 and improve its thermal expansion property. The effects of (HfMg)(6+) incorporation on the phase transition and thermal expansion are investigated. It is shown that the monoclinic-to-orthorhombic phase transition temperature obviously decreases and the coefficient of thermal expansion (CTE) of the orthorhombic becomes less negative and approaches to zero with increasing the content of (HfMg)(6+). A near zero thermal expansion covering the case at room temperature (RT) is achieved for the solid solutions with x >= 0.85, implying potential applications of this material in many fields.

• 出版日期2016-8
• 单位郑州大学; 河南工程学院; 河南大学