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研究了以TEA CO_2单脉冲激光辐照在Pt-Rh(10％)等金属表面上引发的NH_3+O_2复相爆燃反应。Pt-Rh等表面的存在明显地降低了引爆反应所需的激光功率密度。该反应的引爆阈值与激光的频率、不同的金属表面和处理方法、以及NH_3+O_2混合气体的总压力和分压比都有关。此外,还测定了该爆燃反应所产生的化学发光光谱,并讨论了反应机理。
A single-pulsed laser irradiation of TEA CO_2 was used to investigate the NH_3 + O_2 deflagration reaction initiated on a Pt-Rh (10%) metal surface. The presence of Pt-Rh and other surfaces significantly reduces the laser power densities required for the detonation reaction. The detonation threshold of the reaction is related to the laser frequency, different metal surfaces and treatment methods, and the total pressure and partial pressure ratio of the NH 3 + O 2 mixture. In addition, the chemiluminescence spectra of the deflagration reaction were also measured and the reaction mechanism was discussed.