Abstract

The paper experimentally demonstrates the possibility of synthesizing cast W–C–Ni composite materials (CMs) by SHS metallurgy from highly exothermic mixtures based on WO₃ and NiO oxides and a complex reducing agent consisting of Al, Ca, and graphite at an elevated gas (nitrogen) pressure. It is shown that by varying the WO₃ and NiO ratio, the initial mixtures of the contents of carbon, aluminum, and calcium retain the ability to burn in a wide range of values, and the combustion temperature exceeds the melting temperature of the composite and slag (oxide) combustion products. Under the action of gravity there is a separation of the melts of the CM and slag; and with subsequent cooling, the formation of their structure. This paper studies the laws of combustion of mixtures, gravitational separation of combustion products, and the formation of their composition and structure.

中文翻译：

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SHS冶金法制备结合镍的碳化钨基铸造复合材料。

摘要

该论文实验证明了通过SHS冶金从高放热的混合物中合成WO-C-Ni复合材料（CMs）的可能性，该混合物基于WO ₃和NiO氧化物以及由Al，Ca和石墨组成的复杂还原剂，在升高的气体中（氮气）压力。结果表明，通过改变WO ₃和NiO比率，碳，铝和钙的含量的初始混合物在很宽的数值范围内保持燃烧的能力，并且燃烧温度超过了复合材料和炉渣（氧化物）燃烧产物的熔化温度。在重力作用下，CM和炉渣的熔体分离。然后进行冷却，形成其结构。本文研究了混合物的燃烧规律，燃烧产物的重力分离及其组成和结构的形成。