本文選題：氧燭 + 金屬燃料��； 參考：《工程科學(xué)學(xué)報》2017年08期

【摘要】：分別制備了兩組粒徑的Mn金屬燃料(平均粒徑分別為18.73和5.24μm),利用激光粒度分析儀測試了其粒徑分布,掃描電鏡分析了表面形貌,能譜儀確定了所含元素.對NaClO_3,NaClO_3與Co_3O_4,NaClO_3、Co_3O_4與Mn的混合物分別進(jìn)行了熱重與示差掃描量熱聯(lián)合分析實驗(TGA-DSC),通過對比各混合物熱解起始溫度及其他特征溫度,探究了Mn金屬粒徑對NaClO_3熱解的催化強(qiáng)度與熱解穩(wěn)定性的影響.研究結(jié)果表明:Co_3O_4雖對NaClO_3熱解具有催化性,熱解開始溫度(To)由512.3℃下降為333.0℃,但其可導(dǎo)致NaClO_3熱解的不穩(wěn)定,熱解階梯由1個變?yōu)?個;Mn金屬燃料對NaClO_3中間產(chǎn)物具有明顯的催化性,且隨著粒徑減小,催化強(qiáng)度逐漸增加,熱解終止溫度(Tf)由419.8℃下降為351.9℃,同時NaClO_3熱解階梯減少,熱解溫度區(qū)間變窄(由180.6℃減小為19.4℃),熱解更加穩(wěn)定.
[Abstract]:Two groups of mn metal fuels with average particle sizes of 18.73 and 5.24 渭 m were prepared respectively. The particle size distribution was measured by laser particle size analyzer, the surface morphology was analyzed by SEM, and the elements were determined by energy spectrometer. The TGA-DSCC of the mixture of NaClO _ 3 / NaClO _ S _ 3 and Co _ 3O _ S _ 4 / NaClO _ 3O _ 4 / C _ 3O _ 3O _ 4 and mn were carried out respectively. By comparing the starting temperature and other characteristic temperatures of each mixture, The effects of mn particle size on the catalytic strength and pyrolysis stability of NaClO_3 were investigated. The results show that although the pyrolysis of NaClO_3 is catalytic, the starting temperature of pyrolysis decreases from 512.3 鈩，

本文編號：1775873