论文部分内容阅读
α′、β、γ晶型的三氢化铝(AlH3)是乙醚法合成α-AlH3的常见伴生晶型,它们会影响α-AlH3的热力学稳定性和安全性。在常温存储条件,经历约650 d后,γ晶型使得AlH3的分解率由2.13%上升到5.15%。通过撞击、摩擦、静电火花感度测试,含有其他晶型的α-AlH3比纯净α-AlH3的摩擦感度和静电火花感度均有不同程度的增加,其中对静电感度影响较大,与晶型较好的α晶型AlH相比其E数值相差约5-10倍。
The α, β, γ-type aluminum trihydride (AlH3) is a common crystal form of α-AlH3 synthesized by the ether method, which affects the thermodynamic stability and safety of α-AlH3. After storage at room temperature for about 650 days, the γ crystal form increased the decomposition rate of AlH3 from 2.13% to 5.15%. The friction sensitivities and electrostatic spark sensitivities of α-AlH3 with other crystalline forms increased to some extent by impact, friction and electrostatic spark sensitivities tests, among which electrostatic induction sensitivity and crystal form were better than those of pure α-AlH3 Alpha crystalline AlH has a difference of about 5-10 times its E value.