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碳热还原氮化法制备氮化钒合金的研究
The study on preparation of vanadium nitride ahoy by carbothermal reduction and nitridation
【Author】 CAO Hong LIU Ying ZHAO Zhi-wei YE Jin-wen TU Ming-jing (College of Materials Science and Engineering,Sichuan University,Chendu 610065,China)
【机构】 四川大学材料科学与工程学院;
【摘要】 以工业级 V2O5和碳黑为原料,添加少量 Fe 粉为烧结助剂,经过混料,压制成块然后进行烧结,碳氮化同时反应最后制得高氮含量的致密化氮化钒合金.并利用 XRD 衍射仪,氧氮分析仪和密度测试等着重研究了反应温度时制备样品的相组成及其组成成分和块体密度的影响.结果表明:产品的氮含量在1100~ 1250℃温度范围内随着反应温度的升高而降低,而合金块体密度一直增大.
【Abstract】 On the base of thermodynamic analysis,using industrial V2O5 and carbon black as raw materials with a small amount of additive pure iron powder,which are mixed then pressed compact,vanadium nitride alloy are prepared by carbothemal reduction and nitridation in graphite vacuum furnace full of pure nitrogen.X-ray diffractometer,chemical analysis and density characterization are applied to investigate the effects of reaction temperature on preparation of vanadium nitride alloy.The results show that N content of products decrease with elevating temperature in the range of 1100~1250℃,but the density increase.
【Key words】 vanadium nitride; carbothermal reduction and nitridation; preparation; reaction temperature;
- 【会议录名称】 第六届中国功能材料及其应用学术会议论文集(10)
- 【会议名称】第六届中国功能材料及其应用学术会议
- 【会议时间】2007-11
- 【会议地点】中国湖北武汉
- 【分类号】TG131
- 【主办单位】重庆仪器材料研究所、中国仪器仪表学会仪表材料分会、国家仪表功能材料工程技术研究中心