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The explosion characteristic of propylene oxide/nano-, micro-alumium component were comparably investigated under the changed induced incident shock waves. The ignition delay times of two explosion systems were determined by the monochromater synchronous test technology. The structure, morphology, surface oxide layer of the products were analyized by scanning electron microscopy(SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results indicated that the products of nano-Al are the spongy-structure, need-structure and fiber-structure, the morphology of the products of microsize aluminum is mainly in spherical structure. The different phases of alumina(α,β,γ,ε,δ) in compress section , ignition section, combustion section, explosion section, propagation section, and compressed products section was revealed by XRD data. It shows that the reaction in nano-Al reaction system is more violent than that in micro-Al one and the decreasing temperature align the axial cause the different phases of alimina . XPS spectrum show that the oxide layers on the surface of nano-alumina is about 35nm, alumina is almost is 92%; while the oxide layer on the surface of micro-alumina is 30nm, alumina is merely 65%. The experimental results that indicated the existing two different ignition mechanisms and combustion mechanism will be useful to the addition of energy material.
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Keywords:
- induced shockwaves /
- ignition /
- XPS spectrum /
- aluminum powder
[1] Mech M M, Kuo K K, Yeh C L, Lu Y C 1998 Combut.Sci.Technol. 135 269
[2] Yan Z X, Wu J H, Ye S 2007 J.Appl.Phys. 101 1101061
[3] Roberts T A, Burton R L, Krier H 1993 Combust. Flame 92 125
[4] Benkiewicz K, Hayashi A K 2002 Fluid Dynamics Research 30 269
[5] Epstein M, Fauske H K, Theofanous T G 2000 Nuclear Engineering and Design 201 71
[6] Benkiewicz K, Hayashi A K 2002 Fluid Dynamics Research 30 269
[7] Paul E D, James D F, Mark D C 2005 J. Propu. Power. 21 256
[8] Epstein M, Fauske H K, Theofanous T G 2000 Nuclear Engineering and Design 201 71
[9] Valliappan S, Swaiakiewicz J A 2005 Puszynski, Powder Technol. 156 164
[10] Levitas V I, Asay B W, Son S F, Pantoya M L 2007 J. Appl. Phys. 101 083524
[11] Wronski C R M 1967 J. Appl. Phys.18 1731
[12] Weast R C (Editor-in-Chief) 1984 CRC hadbook of chemistry and physics. 64th ed. Boca Raton, FL:CRC Press
[13] Jesson B J, Madden P A 2000 J.Chem.Phys. 113 5924
[14] Eckert J, Holzer J C, Ahn C C, Fu Z 1993 Nanostruct. Mater. 2 407
[15] Lai S L, Guo J Y, Petrova V, Ramanath G, Allen L H 1996 Phsy.Rev.Lett. 77 9
[16] Li H, Xie E Q, Zhang H L, Pang X J, Zhang Y Z 2007 Acta Phys. Sin. 56 3584 (in Chinese) [李 晖、谢二庆、张洪亮、潘孝军、张永哲 2007 物理学报 56 3584]
[17] Guo J C, Liu X, Niu H B, Pen X 2007 Chin. Phys. 16 1632
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[1] Mech M M, Kuo K K, Yeh C L, Lu Y C 1998 Combut.Sci.Technol. 135 269
[2] Yan Z X, Wu J H, Ye S 2007 J.Appl.Phys. 101 1101061
[3] Roberts T A, Burton R L, Krier H 1993 Combust. Flame 92 125
[4] Benkiewicz K, Hayashi A K 2002 Fluid Dynamics Research 30 269
[5] Epstein M, Fauske H K, Theofanous T G 2000 Nuclear Engineering and Design 201 71
[6] Benkiewicz K, Hayashi A K 2002 Fluid Dynamics Research 30 269
[7] Paul E D, James D F, Mark D C 2005 J. Propu. Power. 21 256
[8] Epstein M, Fauske H K, Theofanous T G 2000 Nuclear Engineering and Design 201 71
[9] Valliappan S, Swaiakiewicz J A 2005 Puszynski, Powder Technol. 156 164
[10] Levitas V I, Asay B W, Son S F, Pantoya M L 2007 J. Appl. Phys. 101 083524
[11] Wronski C R M 1967 J. Appl. Phys.18 1731
[12] Weast R C (Editor-in-Chief) 1984 CRC hadbook of chemistry and physics. 64th ed. Boca Raton, FL:CRC Press
[13] Jesson B J, Madden P A 2000 J.Chem.Phys. 113 5924
[14] Eckert J, Holzer J C, Ahn C C, Fu Z 1993 Nanostruct. Mater. 2 407
[15] Lai S L, Guo J Y, Petrova V, Ramanath G, Allen L H 1996 Phsy.Rev.Lett. 77 9
[16] Li H, Xie E Q, Zhang H L, Pang X J, Zhang Y Z 2007 Acta Phys. Sin. 56 3584 (in Chinese) [李 晖、谢二庆、张洪亮、潘孝军、张永哲 2007 物理学报 56 3584]
[17] Guo J C, Liu X, Niu H B, Pen X 2007 Chin. Phys. 16 1632
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