Abstract—

Experimental data are reported that demonstrate the feasibility of producing cast W–C–Co carbide ceramics using a thermite-type highly exothermic mixture consisting of two components: (1) WO₃/Al/Ca/C and (2) Co₃O₄/Al. We show that, during synthesis in a reactor under a nitrogen pressure, the mixture is capable of burning at any WO₃/Al/Ca/C and Co₃O₄/Al ratios and that the combustion temperature exceeds the melting point of the combustion products (W–C–Co and Al₂O₃) in a wide composition range. Varying the ratio of compositions 1 and 2 and the percentages of carbon and aluminum in the starting mixture makes it possible to control the chemical and phase compositions and structure of the required cast material (W–C–Co).

中文翻译：

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W-C-Co铸造陶瓷的自蔓延高温合成冶金

摘要-

据报道，实验数据证明了使用由以下两种成分组成的铝热剂型高放热混合物生产铸造W–C–Co碳化物陶瓷的可行性：（1）WO ₃ / Al / Ca / C和（2）Co ₃ O ₄ /铝 我们表明，在反应器中在氮气压力下进行合成期间，混合物能够以任何WO ₃ / Al / Ca / C和Co ₃ O ₄ / Al比率燃烧，并且燃烧温度超过了燃烧的熔点产品（WC–Co和Al ₂ O ₃）的广泛组成范围。改变原料混合物1和2的比例以及起始混合物中碳和铝的百分比可以控制所需铸造材料（WC-Co）的化学和相组成以及结构。