Title: Effect of Nano-ferric-oxide on HTPB Propellant Performance
Abstract: Four kinds of nano-ferric-oxide Ⅰ-Ⅳ with different appearance and five kinds of 9~14/65-70/17/3/1-adhesive /AP/Al/ferrocence/ordinary ferric-oxide or nano-ferric-oxide Ⅰ-Ⅳ propellants(HTPB propellant) were prepared.The effect of nano-ferric-oxide on the mechanical performances,combustion characteristics and safety properties of HTPB propellant were studied.Results show that nano-ferric-oxide Ⅱ is the best catalyst of the four kinds of nano-ferric-oxide.At 25 ℃,the maximum tensile strength of HTPB propellant with nano-ferric-oxide Ⅱis about 0.83 MPa and its maximum elongation reaches 60%.At-40 ℃,its maximum tensile strength is about 2.00 MPa and the maximum elongation reaches 45%.The burning rate at 6.86 MPa is 43.24 mm/s and the pressure exponent is 0.27.The critical impact energy of 50% explosive(I50) of the propellant slurry is greater than 14 J and the friction sensitivity is less than 80%,indicating that the safety properties of the propellant are same as those of the propellant with ordinary ferric-oxide.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 2
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