CEMS AND COUPLING EFFECT OF INTERLAYERS IN MULTILAYERED FeSi/Si AMORPHOUS FILMS

Multilayered FeSi/Si amorphous films with fixed FeSi layer thickness and different Si layer thicknesses have been studied by conversion electron Mossbauer spectroscopy at room temperature. The results showed that with decreasing the Si layer thickness, the hyperfine field of samples increased and the thickness of interface dead layers arisen from the atomic interdiffusion effect decreased. These are due to the coupling effect between the magnetic layers. When the Si layers are thinner than 0.88 nm, the direction of the magnetization is out of the film plane.     

声光器件的换能器带宽—换能器增透膜系的选择

通过计算机编程运算ＴＬ－Ｆ曲线来讨论换能器的带宽，实现了声增透膜系的选择。     

类金刚石薄膜作为MgF2红外增透和保护膜的研究

系统地研究了ＭｇＦ２衬底上类金刚石薄膜的折射率和生长速率与淀积工艺之间的关系，在ＭｇＦ２衬底上成功地设计并制备了红外增透和保护膜。理论与实验研究表明，类金刚石薄膜使ＭｇＦ２的红外透过率提高３％以上是完全可靠的，但起红外增透和保护是作用的统一性问题仍有待进一步研究。     

椭球反射镜膜厚均匀性

本文分析了椭球反射镜膜层厚度均匀性对反射率的影响,从理论上得到膜厚计算公式。根据计算的膜厚分布设计了遮蔽板,获得较好的反射特性。     

立方氮化硼（c－BN）膜的制备、性能及应用

本文综合分析了立方氮化硼（ｃ－ＢＮ）膜的制备方法，介绍了ｃ－ＢＮ膜的结构及其机械、电学、光学和热学性能。最后总结了ｃ－ＢＮ膜在机械和电子领域的应用概况。     

Surface structure of silver thin films on In2O3:Sn and Al2O 3 †

Surface structure of thin silver films (200 Å) on two technologically important films, indium tin oxide (ITO) and aluminium oxide, has been studied using scanning tunneling microscope. ITO films were prepared by reactive electron beam evaporation. Aluminium oxide films were prepared by oxidizing 2000 Å thick aluminium films evaporated on to H₂ terminated single crystal silicon substrates. The surface structure of silver on ITO and aluminium oxide appeared to be same and was characteristic of Stranski-Krastanov type. The observed asymmetry in the island shape was attributed to the anisotropic nature of the strain fields surrounding the nucleation centres.     

含淀粉聚乙烯膜的时控光降解研究

使用复合光降解剂，得到了可光降解的生物降解膜。对膜的光降解进行了考察，并对影响光降解的因素进行了讨论，结果表明，我们所制得的膜是一种较好的时控光降解膜。     

金刚石薄膜中晶粒尺寸的研究

扫描电子显微研究表明，化学汽相沉积的金刚石薄膜中晶粒大小比较均匀。但随着沉积时间和薄膜厚度的增加，晶粒逐渐变大，且每一层内，存在少量的大金刚石颗粒，讨论了晶粒尺寸变化和大晶粒形成的原因和机制。     

Deformation analysis of skew ruled surface shells by moiré interference

The use of thin film grids coated on surfaces is described in relation to the determination of deformations in doubly curved shells. The technique is called the coating film moiré interference method and employs a laser holographic approach.     

Photo-reversible Reaction in Polymer Langmuir-Blodgett Films

Preparation of photoreactive Langmuir-Blodgett (LB) films was carried out using polymers/oligomers prepared from long-chain dialkyl esters of di-and tetra-olefins and having cyclobutane rings in the main chain. These polymers/oligomers formed stable monolayers on a water surface when mixed with arachidic acid. These monolayers could be deposited onto a substrate successfully forming Y-type films. The oligomer LB films were polymerized on irradiation. The polymer LB films showed a photo-reversible process between polymers and oligomers, depending on wavelength of the irradiating light. On the basis of spectral data and molecular weight change, this behaviour was found to be caused by cleavage and formation of cyclobutane rings.