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Dynamic Shock Wave-Induced Switchable Phase Transition of Magnesium Sulfate Heptahydrate
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2021-08-10 , DOI: 10.1021/acs.cgd.1c00476 Aswathappa Sivakumar 1 , Paramasivam Shailaja 1 , S.Sahaya Jude Dhas 2 , Paramasivam Sivaprakash 3 , Abdulrahman I. Almansour 4 , Raju Suresh Kumar 4 , Natarajan Arumugam 4 , Sonachalam Arumugam 3 , Shubhadip Chakraborty 5 , S.A.Martin Britto Dhas 1
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2021-08-10 , DOI: 10.1021/acs.cgd.1c00476 Aswathappa Sivakumar 1 , Paramasivam Shailaja 1 , S.Sahaya Jude Dhas 2 , Paramasivam Sivaprakash 3 , Abdulrahman I. Almansour 4 , Raju Suresh Kumar 4 , Natarajan Arumugam 4 , Sonachalam Arumugam 3 , Shubhadip Chakraborty 5 , S.A.Martin Britto Dhas 1
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To date, even though a large number of shock wave-induced irreversible crystal–crystal phase transitions have been reported over the past few decades, switchable phase transitions of solid-state materials by dynamic shock waves remain quite unknown. Also, attainment of switchable phase transitions is a somewhat difficult task as compared to the irreversible phase transitions. Hence, experiments on switchable phase transitions arising out of materials and the related publications are always considered to be valuable assets for materials researchers so as to gain an enhanced understanding of the behavior of materials and their probable applications. Moreover, materials of switchable phase transitions have an enormous number of spectacular industrial applications. In the present framework, we have presented and demonstrated the switchable phase transition of magnesium sulfate heptahydrate (MgSO4·7H2O) at shocked conditions, and the switching behavior has been screened by diffraction, vibrational spectroscopic, and optical spectroscopic techniques, namely, X-ray diffraction, Raman scattering, and ultraviolet–diffuse reflectance spectroscopy (UV–DRS)analyses, respectively. All the observed results clearly reveal that the switchable phase transition is achieved at dynamic shock wave-loaded conditions. The interesting aspects of the present experimental results with respect to the number of shock pulses are discussed in the upcoming sections.
中文翻译：
七水硫酸镁的动态冲击波诱导的可切换相变
迄今为止，尽管在过去的几十年中已经报道了大量冲击波引起的不可逆晶体-晶体相变，但动态冲击波对固态材料的可切换相变仍然非常未知。此外，与不可逆相变相比，实现可切换相变是一项有点困难的任务。因此，由材料引起的可切换相变实验和相关出版物一直被认为是材料研究人员的宝贵资产，以便更好地了解材料的行为及其可能的应用。此外，可切换相变材料具有大量壮观的工业应用。在目前的框架下，4 ·7H 2 O) 在冲击条件下，开关行为已通过衍射、振动光谱和光学光谱技术筛选出来，即 X 射线衍射、拉曼散射和紫外漫反射光谱 (UV-DRS) 分析， 分别。所有观察到的结果清楚地表明，在动态冲击波加载条件下实现了可切换的相变。在接下来的部分中将讨论与冲击脉冲数量有关的当前实验结果的有趣方面。
更新日期：2021-09-01
中文翻译：
七水硫酸镁的动态冲击波诱导的可切换相变
迄今为止，尽管在过去的几十年中已经报道了大量冲击波引起的不可逆晶体-晶体相变，但动态冲击波对固态材料的可切换相变仍然非常未知。此外，与不可逆相变相比，实现可切换相变是一项有点困难的任务。因此，由材料引起的可切换相变实验和相关出版物一直被认为是材料研究人员的宝贵资产，以便更好地了解材料的行为及其可能的应用。此外，可切换相变材料具有大量壮观的工业应用。在目前的框架下，4 ·7H 2 O) 在冲击条件下，开关行为已通过衍射、振动光谱和光学光谱技术筛选出来，即 X 射线衍射、拉曼散射和紫外漫反射光谱 (UV-DRS) 分析， 分别。所有观察到的结果清楚地表明，在动态冲击波加载条件下实现了可切换的相变。在接下来的部分中将讨论与冲击脉冲数量有关的当前实验结果的有趣方面。
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