For the first time, for performing thermally coupled SHS processes, granular mixtures were used instead of powder ones. In this case, the rate of the heat transfer between the donor and the acceptor is virtually independent of the sample size and is determined only by the granule size. Therefore, an advantage of using a granular mixture is that the process optimized under laboratory conditions can be scaled without changing its characteristics and the properties of the desired synthesis product. The studied granular mixture comprised a mixture of (Ni + Al) granules (acceptor) and a mixture of (Ti + C) granules (donor), which differed in rate and temperature of combustion. It was determined that the ignition of the (Ni + Al) acceptor granules occurred in the combustion front. It was shown that using granular mixtures for performing coupled thermal reactions makes it possible to obtain the combustion products as a readily destructible sample, from which the desired product can be separated even if the melting point of the product of the interaction of the acceptor mixture is lower than the adiabatic combustion temperature.

中文翻译：

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以 (Ni + Al)–(Ti + C) 颗粒混合物为例进行热耦合过程的新方法

第一次，为了执行热耦合 SHS 工艺，使用颗粒混合物代替粉末混合物。在这种情况下，供体和受体之间的热传递速率实际上与样品尺寸无关，仅由颗粒尺寸决定。因此，使用粒状混合物的优势在于，在实验室条件下优化的过程可以按比例扩展，而不会改变其特性和所需合成产品的特性。所研究的颗粒混合物包括（Ni + Al）颗粒（受体）的混合物和（Ti + C）颗粒（供体）的混合物，它们的燃烧速率和温度不同。确定 (Ni + Al) 受体颗粒的点火发生在燃烧前沿。