THE STUDY OF HIGH EFFICIENT AgI PYROTECHNICS AND THEIR NUCLEATING PROPERTIES* |
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| Authors: | Feng Daxiong Chen Ruzhen Jiang Gengwang Luo Binghe and Cui Yunshan |
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| Institution: | Chinese Academy of Meteorological Sciences, Beijing 100081;Chinese Academy of Meteorological Sciences, Beijing 100081;Chinese Academy of Meteorological Sciences, Beijing 100081;Beijing University of Science and Technology, Beijing 100081;Beijing University of Science and Technology, Beijing 100081 |
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| Abstract: | Two kinds of high efficient Agl pyrotechnics BR-88-5 and BR-91-Y have been developed.The tests in the cloud chamber show that the AgI ice nucleating effectiveness can reach up to 1015/g,and the BR-91-Y has even higher ice nucleating rate.Two kinds of foreign AgI pyrotechnics have been made according to the given formulations and also tested in the cloud chamber for comparison.X-ray diffraction analysis for the aerosols produced by burning BR-91-Y shows that AgI in acrosols still retains the hexagonal crystal form and the lattice parameters are smaller than those of pure AgI and other AgI composite nuclei,and closer to ice.Combining with the other tests,the reasons for the high efficiency of BR-91-Y have been discussed. |
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| Keywords: | artificial ice nuclei AgI-pyrotechnic ice nucleating properties lattice parameters of AgI |
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