Probing Crystal Growth of ε- and α-CL-20 Polymorphs via Metastable Phase Transition Using Microscopy and Vibrational Spectroscopy

2014 ◽  
Vol 14 (10) ◽  
pp. 5053-5063 ◽  
Author(s):  
Mrinal Ghosh ◽  
V. Venkatesan ◽  
Snehal Mandave ◽  
Shaibal Banerjee ◽  
Nirmala Sikder ◽  
...  
Keyword(s):  
Phase Transition ◽  
Crystal Growth ◽  
Vibrational Spectroscopy ◽  
Metastable Phase

scholarly journals Crystal Growth and X-Ray Structure of Metastable α-KC0 PO 4

1994 ◽  
Vol 49 (9) ◽  
pp. 1256-1262 ◽  
Keyword(s):  
Phase Transition ◽  
Crystal Growth ◽  
Metastable Phase ◽  
Three Dimensional ◽  
Hexagonal Structure ◽  
Potassium Ions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dimensional Network ◽  
Hexagonal Crystals

Crystals of KCoPO4 were obtained by growth in a gel of tetramethoxysilane/water at 64 °C. The hexagonal crystals have space group P63, a = 18.206(1), c = 8.5135(8) [Å], V = 2443.8(4) [Å3]. Z = 24. The structure was solved by single crystal X-ray diffraction methods. The structure is isotypic with α-KZnPO4. It comprises an ordered three dimensional network of alternating CoO4 and PO4 tetrahedra. which has rings of six tetrahedra in the xy plane. These rings form tunnels in the [001] direction, where the potassium ions are located. Upon heating, the compound undergoes a phase transition at about 565 °C; on cooling, the phase transition occurs at 449 °C, where it transforms into another structure which is yet unknown. This indicates that the hexagonal structure is a metastable phase

Time-Resolved Infrared Vibrational Spectroscopy of the Photoinduced Phase Transition of Pd(dmit)2 Salts Having Different Orders of Phase Transition

2013 ◽  
Vol 117 (25) ◽  
pp. 13187-13196 ◽  
Author(s):  
Naoto Fukazawa ◽  
Takahiro Tanaka ◽  
Tadahiko Ishikawa ◽  
Yoichi Okimoto ◽  
Shin-ya Koshihara ◽  
...  
Keyword(s):  
Phase Transition ◽  
Vibrational Spectroscopy ◽  
Time Resolved

Research on phase transition and crystal growth of lead iodide

2010 ◽  
Vol 505 (1) ◽  
pp. 34-36 ◽  
Author(s):  
Xing-hua Zhu ◽  
Hai-bo Zhang ◽  
Ding-yu Yang ◽  
Zhao-rong Wei ◽  
Xiu-ying Gao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Crystal Growth ◽  
Lead Iodide
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