Mg-Tf Pyrolants

When the reactor is thermally insulated, molten chromium metal and BaO are formed. 

Zr powder reacts with Fe203 powder at high temperatures above 2000 K according to  

This reaction is highly exothermic and produces molten iron similarly to the well-known reaction between A1 and Fe203  

A high heat input is needed to initiate the reaction. Since Zr particles react with KCIO4 particles at a relatively low temperature of around 650 K, immediately after melting of the KCIO4, small amounts of KCIO4 particles are incorporated into mixtures of Zr and FejOj particles. The Zr and KCIO4 particles react exothermically according to  

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A residue remains undecomposed above 893 K. The mass fraction of this residue is 0.656, whereas the mass fraction of Mg contained within the pyrolant is Mg(0-600). This indicates that the residue is produced by oxidation of the Mg by the fluorine produced upon thermal decomposition of the Tf An X-ray analysis revealed that the remaining residue above 893 K in the TG experiments consisted of Mg and Mgp2. The oxidation reaction during the decomposition of Mg-Tf pyrolants is thus ... 

The burning rates of Mg-Tf pyrolants with particle diameters of = 22 pm and dj-f... 

Fig. 11.4 Burning rate characteristics of Mg-Tf pyrolants as a function of adiabatic flame temperature.

The effects of the particle size of Mg and Tf on burning rate are shown in Fig. 11.5. The Mg-Tf pyrolants used to obtain the data shown in Fig. 11.5 all have a mixture ratio of = 0.60/0.40. The burning rate increases with decreasing Mg... 

The burning rates of Mg-Tf pyrolants are highly dependent on the particle sizes of both the Mg and Tf The burning rate at Mg(0-60) is high when smaU-sized Mg and large-sized Tf particles are used in the pressure range below 2 MPa. Fig. 11.6 shows the relationship between the burning rate and the total surface area of the... 

The temperature of an Mg-Tf pyrolant composed of Mg(0-30) rises from its initial... 

Referring to Section 3.5, the burning mode of an Mg-Tf pyrolant can be understood by the use of Eqs. (3.73)-(3.76). If one assumes a homogeneous condensed phase, the heat balance at the burning surface is represented by... 

Kuwahara, T., Matsuo, S., and Shinozaki, N Combustion and Sensitivity Characteristics of Mg/Tf Pyrolants, Propellants, Explosives, Pyrotechnics, 22,198-202,... 

Kuwahara, T, and Ochiai, T, Burning Rate of Mg/Tf Pyrolants , 18th International Pyrotechnics Seminar, Colorado, 539-549, 1992. 

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