| NbS2-xSex的制备、表征及其摩擦学性能 |
| Preparation, Characterization and Tribological Properties of NbS2-xSex |
| 作者 | 单位 | E-mail | | 胡志立 | 江苏大学机械工程学院, 镇江 212013
江苏省摩擦学重点实验室, 镇江 212013 | | | 李长生 | 江苏大学机械工程学院, 镇江 212013
江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013 | lichangsheng@ujs.edu.cn | | 唐华 | 江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013 | tanghua@ujs.edu.cn | | 陈琳 | 江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013 | | | 梁家青 | 江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013 | | | 唐国钢 | 江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013
镇江高等专科学校化工系, 镇江 212003 | | | 张毅 | 江苏省摩擦学重点实验室, 镇江 212013
江苏大学材料科学与工程学院, 镇江 212013 | |
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| 摘要: 本文采用固相反应合成了NbS2-xSex纳米材料。并分别采用XRD、SEM、TEM、HRTEM进行了结构、形貌和成分的分析表征。系统研究了合成温度、保温时间及不同掺杂量对产物晶型和形貌演化的影响及规律性。结果表明Se的掺杂使NbS2-xSex的形貌由纳米带（板）转变为纳米片，衍射峰明显宽化，峰强变弱，晶粒细化。且掺杂量、保温温度及时间对产物的形貌影响较大；在750 ℃下保温2 h得到的掺杂5at% Se的NbS1.9Se0.1形貌良好。将NbS2-xSex作为液体石蜡油的添加剂的UMT-2摩擦学实验结果表明掺杂后的NbS2-xSex具有优异的摩擦性能，其中掺杂5at%的Se在750 ℃下保温2 h的NbS1.9Se0.1摩擦性能最佳，同时对其摩擦机理进行了解释。 |
| 关键词: Se掺杂 NbS2-xSex NbS2 纳米材料 摩擦 |
| 基金项目: 国家自然科学基金（No.51275213）；江苏省自然科学基金（No.BK2011534）资助项目。 |
| Abstract: In this paper, NbS2-xSex nanoparticles were synthesized by solid state reaction. The effect of Se doped amount, reaction temperature and reaction time on evolution rules of crystal form and morphology of the production of Nb2-xSex nanomaterials were discussed, phase and microstructure of as-synthesized samples were examined by means of XRD, SEM, TEM and HRTEM. The results show that the morphology of NbS2-xSex nanobelt(nanoclintheriform) turned into nanoflake after Se was doped, meanwhile diffraction peaks were broadened, peak intensity become weaker, grains were refined. What's more, the doping amount, reaction temperature and reaction time play a greater impact on the morphology of the production. The morphology of NbS1.9Se0.1 which was doped by 5at% Se at 750 ℃ for 2h was fine. The results of UMT-2 tribology experiment show that the doped NbS2-xSex has excellent friction performance when NbS2-xSex was used as additive in liquid paraffin oil. Furthermore the NbS1.9Se0.1 that doped 5at% Se, at 750 ℃ for 2 h, has the best friction performance and the friction mechanism was also explained at the same time. |
| Keywords: Se doping NbS2-xSex NbS2 nanomaterials friction |
| 投稿时间：2013-05-20 修订日期：2013-07-11 |
| 摘要点击次数: 1622 |
| 全文下载次数: 2576 |
| 胡志立,李长生,唐华,陈琳,梁家青,唐国钢,张毅.NbS2-xSex的制备、表征及其摩擦学性能[J].无机化学学报,2014,30(2):284-292. |
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