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矿务局研究了一种生产细粒度氮化钛、碳化钛和碳氮化钛粉末的工艺。因为这些粉末具有高硬度和耐磨性,所以它能够代替碳化钨在某些切削工具方面的应用。氮化钛和碳化钛粉末能够与镍粘结在一起。本研究探讨了在氮气氛中,750—1050℃(1382—1922F°)温度下用镁或钠蒸气还原四氯化钛生产氮化钛的方法。在氮气氛中添加甲烷,能够形成碳化碳和碳氮化钛,获得了高达98%的四氯化钛还原效率。X射线衍射分析表明,这种粉末不含有显著杂质。由于反应是在气相中进行的,因而获得了小于1μm的粉末。
The Bureau of Mines investigated a process for producing fine-grained titanium nitride, titanium carbide and titanium carbonitride powders. Because of their high hardness and wear resistance, these powders can replace tungsten carbide for certain cutting tools. Titanium nitride and titanium carbide powders can be bonded with nickel. This study explored the production of titanium nitride by reduction of titanium tetrachloride with magnesium or sodium vapor at a temperature of 750-1050 ° C (1382-1922 ° F) in a nitrogen atmosphere. Addition of methane in a nitrogen atmosphere enables the formation of carbon carbide and titanium carbonitride resulting in the reduction efficiency of titanium tetrachloride of up to 98%. X-ray diffraction analysis showed that the powder does not contain significant impurities. Since the reaction is carried out in the gas phase, a powder of less than 1 μm is obtained.