Reactive synthesis of porous nanolaminate Ti-3(Si,Al)C-2 intermetallic compound
Reactive synthesis of porous nanolaminate Ti-3(Si,Al)C-2 intermetallic compound
复制标题
多孔纳米层压Ti-3(Si,Al)C-2金属间化合物的反应合成
DOI：
10.1016/j.matchemphys.2017.12.076
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发表时间：
2018
影响因子：
4.6
通讯作者：
He Yuehui
中科院分区：
文献类型：
--
作者：
Wang Zhonghe;Zhang Huibin;Liu Xinli;Jiang Yao;Gao Haiyan;He Yuehui
Ti3SiC2属于MAX相，通常具有纯度低、合成过程能耗高的特点。在这项工作中，通过在 1300°C 的较低温度下反应合成 Ti、Si、Al 和石墨元素粉末，制备了多孔 Ti3(Si,Al)C2 四元金属间化合物。该四元化合物的特征是基于Ti3SiC2的固溶体，纯度为99.5vol%。测定多孔Ti3(Si,Al)C2化合物的最大孔径、开孔率和渗透率分别为7.1μm、44.0%和16.8m3m−2kPa−1·h−1。多孔Ti3(Si,Al)C2的孔径分布呈现单主峰特征，平均孔径为4.4μm。低成本、简单的合成方法、高纯度和均匀的孔径分布赋予新型多孔材料在纯化和分离领域的潜在应用。
Ti3SiC2, belongs to MAX phases, usually has the characteristics of low purity and high energy consumption synthesis process. In this work, porous Ti3(Si,Al)C2quaternary intermetallic compound was fabricated through a reactive synthesis of Ti, Si, Al and graphite elemental powders at relatively low temperature of 1300 °C. The quaternary compound has been characterized by a solid solution based on Ti3SiC2with the purity of 99.5 vol%. The maximum pore size, open porosity and permeability of porous Ti3(Si,Al)C2compound were determined to be 7.1 μm, 44.0% and 16.8 m3m−2kPa−1·h−1, respectively. The pore size distribution of porous Ti3(Si,Al)C2exhibits a characteristic of a single main peak with the average pore size of 4.4 μm. Low-cost and easy synthesis method, high purity and uniform aperture distribution impart the new porous material potential applications in purification and separation fields.