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A1H3晶型控制与性能研究

GUAN Zhi-hang,ZHANG Si,CHEN Ke-hai,ZHU Zhao-yang,XIAO Jin-wu,QIU Xian-ping

Initiators & Pyrotechnics（2023）

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Abstract
为研究制备工艺条件对三氢化铝(AlH3)的晶型及性能的影响,采用LiAlH4还原AlCl3合成A1H3乙醚络合物,通过控制AlH3乙醚络合物的结晶条件制备了α、γ、α'3种不同晶型的AlH3,并采用扫描电镜(SEM)、X射线衍射(XRD)及差示扫描量热法(DSC)对3种晶型AlH3的晶体形貌、热稳定性和安全性能进行了测试.结果表明:所制备的AlH3样品颗粒均匀、形貌完整;α-AlH3晶型纯度高,热稳定性和安全性相对较好.
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