Abstract

Titanium carbide (TiC) powder was combustion-synthesized in argon from mineral ilmenite and activated carbon (C) using magnesium (Mg) as a fuel. The reactant powders were taken at FeTiO₃ : C : Mg molar ratios of 1 : 1 : 3 and 1 : 1.5 : 4.5. The as-combusted products were leached with 1 M HCl at 80 or 90°C to remove byproducts and impurities. Best results (fewer impurities) were obtained for combustion products derived from FeTiO₃ : C : Mg green mixtures taken at a molar ratio of 1 : 1.5 : 4.5 and subjected to acid leaching at 90°C for 150 min. After leaching, agglomerated TiC particles have a size of around 100 nm. Ilmenite mineral can be recommended as an alternative source of TiO₂ for fabrication of titanium carbide powders.

中文翻译：

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钛铁矿粉和活性炭燃烧合成TiC粉

摘要

碳化钛（TiC）粉末使用镁（Mg）作为燃料在氩气中由矿物钛铁矿和活性炭（C）燃烧合成。在FeTiO ₃ ∶C∶Mg的摩尔比为1∶1∶3和1∶1.5∶4.5的条件下取出反应物粉末。燃烧后的产物在80或90°C下用1 M HCl浸出，以除去副产物和杂质。以1：1.5：4.5的摩尔比取自FeTiO ₃：C：Mg绿色混合物的燃烧产物可获得最佳结果（杂质更少），并在90°C进行了150分钟的酸浸。浸出后，团聚的TiC颗粒的尺寸约为100 nm。钛铁矿矿物可被推荐作为制造碳化钛粉末的TiO ₂的替代来源。