The results of diagnostics of thermal conditions of an electric thermal explosion (ETE) of a mixture of titanium and soot powders under quasistatic compression are presented. The effect of quasistatic compression pressure on the thermal and electrical parameters of an ETE is studied. It is shown that nonuniform heating occurs at low pressure, while uniform heating occurs at high pressure. A criterion is proposed for determining the thermal regime of the ETE of a heterogeneous mixture, based on the ratio of the exothermic interaction times and the electric current variation during a thermal explosion. It is established that the dependence of the electric current variation rate on time has one peak when the sample is heated nonuniformly and two peaks when it is heated uniformly. An abnormally low effective flash point of the heterogeneous titanium-soot mixture is explained.

中文翻译：

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钛-烟灰混合物在准静态压缩下的电热爆炸。三、准静态压缩压力的影响

介绍了钛和烟灰粉末混合物在准静态压缩下的电热爆炸 (ETE) 热条件诊断结果。研究了准静态压缩压力对 ETE 的热和电参数的影响。结果表明，在低压下发生不均匀加热，而在高压下发生均匀加热。基于放热相互作用时间和热爆炸过程中电流变化的比率，提出了一种用于确定异质混合物 ETE 热状态的标准。确定了电流变化率对时间的依赖性在样品不均匀加热时有一个峰值，在均匀加热时有两个峰值。