Study of the different Al/Mg powders in hydro-reactive fuel propellant used for water ramjet
Experiments were conducted to study the effect of magnesium-aluminum alloy on combustion performance of hydro-reactive fuel propellant.The raw metal powders added to the propellants were ball-milled magnesium-50% aluminum alloy (m-AM), magnesium50% aluminum alloy (AM), Al and magnesium (Mg) powders, which were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and simultaneous thermogravimetric analysis (TGA).A high-pressure combustor and a metal/steam reactor were used to simulate the two-stage combustion of hydro-reactive propellants used for a water ramjet.The combustion performance of the metal powders in propellant was studied experimentally, and the efficiency of the Al reaction in the propellants during the twostage combustion was calculated.The results of TGA traces in air indicated that the oxidation onset temperature of AM powders is much lower than for both Mg and Al powders.The XRD patterns for the AM and m-AM alloys exhibited Al12Mg17 diffraction peaks.The hydro-reactive fuel propellant systems with added m-AM powder exhibited good performance in terms of burning rate, combustion heat and the A1 reaction efficiency, which was better than that for the propellants contained AM, Mg and Al powders.At the pressure studied (3.0 MPa), the burning rate of m-AM containing propellant was found to be 15 mm s-1, the heat of primary combustion was 6878.1 kJ kg-1.
hydro-reactive fuel aluminum-magnesium alloy combustion performance reaction in heated steam
HUANG Haitao ZOU Meishuai GUO Xiaoyan YANG Rongjie Li Yunkai JIANG Enzhou LI Zhongshan
School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China Xian North Huian Chemical Co.,Ltd,Xian 710302,China
国际会议
成都
英文
407-413
2013-09-24（万方平台首次上网日期，不代表论文的发表时间）