Science and Technology of Energetic Materials

Vol.73, No.3 (2012)


Sol-gel preparation of PZT powders and its catalytic effect on burning rate of RDX-CMDB propellant
Mingna Qin, Xiaodong Zheng, Qilong Yan, Tiegang Yuan, Wang Tang, Hongli Li, and Shaojun Qiu


Perovskite-type Lead zirconate titanate (PZT) powders were synthesized by a modified sol-gel method. In this route, citric acid (C A) was used a chelating agent to keep the metal ions in homogeneous solution without undergoing precipitation. The obtained powders were characterized by XRD, FT-IR, SEM-EDS techniques. Phase-pure perovskite structure was formed at 500℃. Combustion tests were carried out to investigate the effect of PZT powders on the burning rate of NC/RDX/NG propellant. It is found that PZT powders increase the burning rate of the propellant to the extent 50% as well as bring down the pressure exponent n to 0.25 (5-20 MPa).

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PZT, sol-gel, burning rate, pressure exponent

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