Growth, structural, optical, thermal and mechanical properties of ammonium pentaborate single crystal.
Nonlinear optical single crystals of ammonium pentaborate (APB) were grown by the slow cooling method from aqueous solution. Grown crystal was characterized by powder X-ray diffraction (PXRD) and FT-IR spectral analysis. Perfection of the grown crystal was evaluated by high-resolution X-ray diffractometry (HRXRD). The effect of nylon threading on the perfection of the grown bigger crystal was also studied by HRXRD. The range and percentage of optical transmission was ascertained by recording UV-vis-NIR spectrum. Thermal properties were investigated by TG-DTA and DSC analyses. Its mechanical hardness was estimated by Vickers microhardness tester.
Balakrishnan
T
T
Crystal Growth and Thin Film Laboratory, School of Physics, Bharathidasan University, Tiruchirappalli, Tamil Nadu 620024, India. balaphy@rediffmail.com
Bhagavannarayana
G
G
Ramamurthi
K
K
D001881:Borates / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D003460:Crystallization; D012995:Solubility; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D044366:Transition Temperature; D014961:X-Ray Diffraction / Q000379:methods*
D001881:Borates; C028466:ammonium borate