화학공학소재연구정보센터
Propellants Explosives Pyrotechnics, Vol.40, No.2, 246-252, 2015
Laser Initiation of Tris(carbohydrazide) metal(II) Perchlorates and Bis(carbohydrazide) diperchlorato-copper(II)
The literature-known tris(carbohydrazide)metal(II) perchlorates [M(CHZ)(3)](ClO4)(2) (MMg2+ (1), Mn2+ (2), Co2+ (3), Ni2+ (4), and Zn2+ (5)) and the bis(carbohydrazide)diperchloratocopper(II) (6) were prepared and characterized by elemental analysis, IR and Vis/NIR spectroscopy. The sensitivities toward mechanical, thermal, and electrical stimuli were determined for all complexes 1-6. Following, confined samples of 1-6 were irradiated with a monopulsed laser beam at a wavelength of 940nm. The function times between beginning irradiation and complete decomposition (breakout at the end of the device) were measured. Further, the influence of light-absorbing additives was investigated to proof if the laser initiation mechanism might be photothermal or photochemical. Addition of 1% active carbon to the samples decreased the function time and the correlated initiation threshold enormously. This was an indication that the initiation mechanism seems to be thermal.