黄剑锋
,
刘淼
,
曹丽云
,
吴建鹏
,
贺海燕
稀有金属材料与工程
以硫脲(SC(NH2)2)和三氯化锑(SbC13)为主要原料,采用仿生法在玻璃基板上制备了Sb2S3薄膜,研究了热处理温度对薄膜晶相、显微结构和禁带宽度等的影响.采用X-射线衍射仪(XRD)、原子力显微镜(AFM)和紫外-可见自记式分光光度计等对薄膜的相组成、显微结构和光学性能进行了表征.结果表明:300℃热处理后获得的薄膜为无定形薄膜;随热处理温度的提高,薄膜的结晶性能变好,薄膜生长和取向性增强;随着热处理温度从300℃提高到500℃,薄膜的光学带隙由2.06 eV降低到1.88 eV.
关键词:
Sb2S3
,
微晶薄膜
,
仿生法
张玲
,
陈建敏
,
陈磊
,
万宏启
,
周惠娣
无机材料学报
doi:10.3724/SP.J.1077.2011.00643
利用四球摩擦磨损试验机对硫化锑纳米棒束作为液体石蜡添加剂的摩擦学性能进行了研究. 结合硫化锑纳米颗粒的性能, 对比分析两者作为添加剂润滑下摩擦系数、磨斑直径、钢球磨损表面形貌的变化规律, 并得到以下结论: 两种材料均能在一定程度上改善基础油的减摩抗磨性能, 在低载荷时硫化锑纳米棒束的减摩抗磨性能明显优于纳米颗粒, 较高载荷时, 两者的减摩抗磨性能相当; 就承载能力而言, 纳米颗粒的性能明显优于纳米棒束; 低载时纳米棒束的“微滚珠”效应是其优异摩擦学性能的主要原因.
关键词:
硫化锑
,
morphology
,
lubricating additive
,
tribological properties
Yixin HUA
,
Yong YANG
,
Fuliang ZHU
材料科学技术（英）
The volatilization kinetics of antimony trisulfide in steam atmosphere was studied with thermogravimetry at temperatures from 923 to 1123 K. A theoretical model was developed to calculate the overall rate constant and the mass transfer coefficient in gas phases. The experimental results show that the volatilization rate is enhanced with increasing temperature and steam flow rate. The volatilization rate is mainly controlled by the mass transport in gas phases. The apparent activation energy for the process is found to be 59.93 kJ/mol. It is demonstrated that Sb2S3 is dominantly oxidized into Sb2O3 and H2S by water vapor in the volatilization process. Some antimony metal is formed. The reaction mechanism is discussed in accordance with experimental data.
关键词:
Volatilization
,
null
,
null
,
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