CHINESE JOURNAL OF ENERGETIC MATERIALS
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DNTF的非等温结晶研究—Ⅰ.在HMX中的结晶动力学
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周文静(1981-),女,在读硕士,研究领域为含能材料热分析。e-mail: zhouwenjing204@sohu.com

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Non-isothermal Crystallization of DNTF:Ⅰ. Crystallization Kinetics in HMX
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    摘要:

    采用差示扫描量热仪(DSC)研究了3,4-二硝基呋咱基氧化呋咱(DNTF)在HMX中的非等温结晶行为,介绍了几种结晶动力学的数学模型,并用于DNTF结晶动力学的数据处理,对获得的结果进行了比较。结果表明, HMX能降低DNTF的过冷度,有效消除自加热。利用Avrami方程得到了DNTF的结晶动力学指数n,从而确定了结晶过程的机理函数g(α)。用Kissinger方程获得了结晶的动力学参数活化能。同时,还用Avrami-Ozawa方程获得了该结晶过程的Ozawa指数m以及反映结晶速率快慢的温度函数F(T),数据表明Avrami-Ozawa方程能够较好描述DNTF的非等温结晶过程。

    Abstract:

    The non-isothermal crystallization of 3,4-dinitrofurazanofuroxan (DNTF) in octalzydro-1,3,5,7-tetranitro-1,3,5,7-trtrazocine (HMX) was researched by differential scanning calorimetry. Several kinetics models were used to investigate the crystallization behavior of DNTF and the obtained results were compared. The results show that HMX can reduce the super-cooling degree of DNTF and eliminate self-heating of DNTF crystallization. The crystallization kinetics exponent n was obtained from Avrami equation and the mechanism function g(α) was determined. The active energy of non-isothermal crystallization kinetics parameter of DNTF were obtained from Kissinger equation. Furthermore, Ozawa exponent m and temperature function F(T) were obtained from Avrami-Ozawa equation. The results also show that the non-isothermal crystallization process of DNTF can be preferably described by Avrami-Ozawa equation.

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周文静,覃光明,张皋,等. DNTF的非等温结晶研究—Ⅰ.在HMX中的结晶动力学[J].含能材料, 2007, 15(6):629-632.
ZHOU Wen-jing, QIN Guang-ming, ZHANG Gao, et al. Non-isothermal Crystallization of DNTF:Ⅰ. Crystallization Kinetics in HMX[J]. Chinese Journal of Energetic Materials, 2007, 15(6):629-632.

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  • 收稿日期: 2007-04-10
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  • 在线发布日期: 2011-11-03
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