Experimental study of oil-water interface layers dilatation rheological properties

Oil-water interface layers dilatation rheological properties have been measured with the liquid-liquid interface film pressure measurement apparatus, which was based on the principles of Langmuir film balance. Experimental results show that it is possible to form the interface-associ- ated material caused by the attraction of the dispersion forces at the pure alkane-water interface. The type of material is sensitive to the interfacial pressure. Under the influence of the interfacial pressure, the stability of the interface associated materials decreases with the increase of the number of alkane carbons.     

MIM结构薄膜应变栅的实验研究

运用薄膜沉积技术,制作了ＭＩＭ（金属－介质－金属）结构薄膜应变栅介绍了薄膜应变栅的制作工艺,并对其性能参数进行了测试     

The mass recognizing property of DLC film for formic acid vapors

The carbon films are prepared by r. f. plasma method with n-butylamine as carbon source. The analysis of Raman spectrosewpy shows that this kind of carbon film has diamond-like structure, and IR spectroscopy measurement indicats that there are SP² bonding, SP³ bonding and amino-group in the film. It is the existence of amino-group and hydrogen atom that cause the amorphous structure and the deformation of bonding to increase, thus leading the Raman spectrum to form a broad absorption band. The quartz crystal microbalance (QCM) deposited with this kind of carbon film as recognizing coating is very sensitive to formic acid vapors. This QCM sensor has good reproducibility, high stability, rapid response and long lifetime.     

Point defects in active layers of TFEL devices based on ZnS

Point defects in the active layer of a layered optimization thin film electroluminescent device of ZnS; Er³⁺ were studied. The results indicate that besides Er³⁺ substituting for Zn²⁺ as luminescent centers, the dominant point defects are sulfur vacancies, zinc vacancies, shallow donors and deep acceptors. Their influence on electroluminescence is discussed.     

Photoelectrical performance of nanocrystalline TiO2 film electrode sensitized by Ru(II)-bipyridine complexes

Two kinds of Ru(II)-bipyridine complexes,cis-di(thiocyanate)bis(2,2′-bipyridyl-4,4′-dicarboxylate) ruthenium(II) andcis-di(thiocyanate)bis(2, 2′-bipyridyl-3, 3′-dicarboxylate) ruthenium(II), were utilized as the sensitizers to the nanocrystalline TiO₂ film electrodes. Study shows that the two dyes have quite different sensitization properties due to the strong steric effect of carboxyl groups. In addition, the pretreatment to nanocrystalline TiO₂ film electrodes with TiCl₄ was investigated, which is an effective way to improve the photoelectric conversion performances of sensitized TiO₂ electrodes.     

温敏二极管性能的优化研究

从优化设计的需要出发,推导了温敏二极管灵敏度、线性度和串联电阻等电参数的理论公式．采用优化分析法,讨论了影响温敏二极管性能诸多因素的矛盾关系,提出温敏二极管的设计原则及解决相关矛盾的方法．理论分析得到实验结果的有力支持．     

光敏核不育水稻在不同光质下的叶绿素合成

光敏核不育水稻（农垦５８Ｓ）是从晚粳水稻农垦５８中发现的雄性不育自然突变体［１］,在两系杂交稻制种、增产上有巨大潜力．但是,光敏核不育的机理并不清楚,同时还存在温敏等问题．这些问题的解决有赖于加强基础研究,而对农垦５８Ｓ光生理学的研究是一个重要方面．...     

SiC／W纳米多层膜的微结构和微观力学性能

用磁控溅射法在硅基底上制备了不同调制波长Λ的ＳｉＣ／Ｗ纳米多层膜,利用小角度衍射技术（ＬＸＤ）研究了各样品子层界面的调制周期性,并用上限为２０ｍＮ的超显微硬度计ＵＭＨＴ－３,对上述纳米薄膜进行了多载荷微观力学性能测试．结果表明：纳米ＳｉＣ／Ｗ调制多层膜的超显微硬度随测试负荷Ｆ和调制波长Λ的改变而变化,在负荷为５ｍＮ时峰值硬度为１９．９ＧＰａ,与均匀混合的纳米薄膜相比,超显微硬度值提高了约１倍,显示出明显的硬度异常效应．结合实验结果对硬度值随调制波长Λ出现的峰值效应作了初步探讨．     

铜镍复合化学镀

以甲醛为还原剂,ＥＤＴＡ为配位剂的碱性化学镀铜液中用添加Ｎｉ＾２＋,表面点缀镍和层状复合化学镀（镀镍、镀铜）三种方法优化了化学镀铜工艺条件,提高了不锈钢基化学镀铜层的性能。结果表明,几种方法都在不同程度上改善了不锈钢基化学镀铜层的耐磨损性能,添加Ｎｉ＾２＋与层状复合镀相结合的效果最好,镀层的耐磨损性能比一般化学镀铜层提高３５％左右。     

氧化铝陶瓷／金刚石膜复合材料的表征及介电性质研究

采用ＭＰＣＶＤ和ＨＦＣＶＤ在氧化铝陶瓷基片上沉积金刚石薄膜,用抛电镜,Ｘ躬一衍射和Ｒａｍａｎ散射分析表征了沉积膜的质量,并测这和分析了氧化铝／铝金刚石膜复合材料的介电性质。