气象Issue(1)：74-79,6.DOI:10.7519/j.issn.1000-0526.2016.01.009
含 AgI 焰剂成冰性能与物化特征的实验研究
Laboratory Study on Nucleating Properties and Microstructure of AgI Pyrotechnics
摘要
Abstract
Two formulations (WMC-IN-001 and WMC-IN-002)of high efficient AgI pyrotechnics used in weather modification have been obtained after a number of screen tests were carried out in CAMS 1 m3 iso-thermal cloud chamber.The effectiveness can reach to 10 14 g-1 AgI at temperatures of -7℃ and colder for WMC-IN-001,and it can reach up to 10 15 g-1 AgI at -15℃.The foreign pyrotechnic was made according to the formulation of silver-spare (USSR).The ice nucleating properties of silver-spare and other five for-mulations of AgI pyrotechnics in the marketplace in 2011 was tested in the same chamber for comparison with the new pyrotechnics.The results show that the nucleating rates are very low for WMC-IN-001 and WMC-IN-002,and change less (in 40 -55 min)in the temperature range between -7 and -20℃.The aerosol particles produced by WMC-IN-001 are identified by environmental scanning electron microscope (ESEM)and energy disperse spectroscopy (EDS).The particle sizes are within 0.02-0.60 μm in diame-ter,and the mean cube-root diameter is 0.2472 μm.WMC-IN-001 aerosol has a pronounced bimodal size distribution with particles in the small diameter mode between 0.02 -0.10 μm and particles constituting the mode between 0.20-0.55 μm.The relatively large particle size may be one cause for the low nuclea-ting rates.关键词
AgI焰剂/成冰性能/电镜/微观特征Key words
AgI pyrotechnic/ice nucleating properties/electron microscope/microstructure分类
天文与地球科学引用本文复制引用
孔君,王广河,房文,苏正军..含 AgI 焰剂成冰性能与物化特征的实验研究[J].气象,2016,(1):74-79,6.基金项目
国家自然科学基金面上项目（41275149）和公益性行业（气象）科研专项（GYHY201106031和 GYHY201306041）共同资助 （）
