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首页> 外文会议>33rd International Annual Conference of ICT, Jun 25-28, 2002, Karlsruhe >Study of the combustion residues for MgAI solid propellant
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Study of the combustion residues for MgAI solid propellant

机译：MgAl固体推进剂燃烧残留物的研究

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摘要

The goal of this research is to obtain detailed information about the condensed combustion products of MgAI solid propellant. Preliminary works have shown that the combustion completeness of MgAI particles in the flame of solid propellant is higher and characteristic sizes of the combustion are smaller as compared with propellant containing pure Al. To obtain most reliable data the sampling of the condensed combustion products was performed by two different methods: with use of the quench particle collection bomb (liquid collection method) and flow through sampling bomb (dry collection method). The propellant under study contained 20% MgAI, 65% AP and 15% HTPB by mass. Firing runs were conducted in nitrogen at pressures 0.3 and 6 MPa. The powder of MgAI (50/50) alloy was used in the form of particles with 6-10 micron mean size. Collected particles were analyzed to determine their chemical composition and size distribution. It has been found that the metal combustion completeness is close to 100% under tested firing conditions and major part of collected particles has size less than 80 μm evidencing the absence of agglomeration. Exception was the result obtained with particular type MgAI propellant at 6 MPa, which showed strong agglomeration trend.
机译：这项研究的目的是获得有关MgAl固体推进剂的冷凝燃烧产物的详细信息。初步工作表明，与含纯铝的推进剂相比，固体推进剂火焰中MgAl颗粒的燃烧完整性更高，燃烧的特征尺寸更小。为了获得最可靠的数据，通过两种不同的方法对冷凝的燃烧产物进行采样：使用淬火颗粒收集弹（液体收集方法）和流经采样弹（干式收集方法）。研究中的推进剂按质量计含有20％MgAl，65％AP和15％HTPB。在氮气中在0.3和6 MPa的压力下进行烧结。 MgAl（50/50）合金粉末以平均尺寸为6-10微米的颗粒形式使用。分析收集的颗粒以确定其化学组成和尺寸分布。已经发现，在测试的燃烧条件下，金属燃烧的完整性接近100％，并且所收集的大部分颗粒的尺寸小于80μm，这表明没有团聚。使用特殊类型的MgAl推进剂在6 MPa下获得的结果例外，该结果显示出强烈的团聚趋势。

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