Detecting surface segregation by using PQI has many advantages of rapid, accurate, nondestructive, and non-radioactive, it can be used as reference for the similar engineering construction. 利用沥青路面密度仪对路面离析问题进行检测快速准确、无损及无放射源,可以为同类工程借鉴。
The method of detecting and evaluating the surface segregation by using pavement quality indicator ( PQI) in Nan-You freeway asphalt pavement construction is introduced. 在南友高速公路沥青混凝土路面的施工过程中,采用沥青路面密度仪(PQI)对沥青混凝土路面的离析进行检测和评价。
Prediction of the Surface Segregation of Trace Elements on the Al ( 100) Surface by Density Functional Theory 密度泛函理论预测微量元素在Al(100)表面的偏聚
Study of Lyotropic Liquid Crystals Formed by Mixed C? H/ C? F Surfactants Effect of solvents on surface segregation behavior of fluorinated block copolymer films 碳氢/碳氟表面活性剂复配体系溶致液晶的研究成膜溶剂与氟化嵌段共聚物膜的表面富集行为
According to the measured diversification of field densities, the degrees and areas of surface segregation are evaluated by using statistic analysis method. 通过广泛采集路面的密度资料,根据检测路段密度的变化情况,利用统计分析的方法判断路面的离析程度及范围。
The causes of surface segregation are analyzed and the preventive measures are pointed out. 并分析了施工过程中离析产生的原因,提出了相应的防治方法。
Effect of solvents on surface segregation behavior of fluorinated block copolymer films 成膜溶剂与氟化嵌段共聚物膜的表面富集行为
Analysing the Applicability for Surface Segregation Theories of Alloy Systems 合金表面聚集理论适应性分析
Phosphorus Surface Segregation and the Influence of Pre-deposited Phosphorus Atoms on the Formation of Ge Quantum Dots 磷原子的表面偏析与表面磷原子对锗量子点自组织生长的影响
Energetic beam induced surface segregation of cu/ ag system 荷能束辐照致使Cu/Ag表面偏析的研究
Surface Segregation of Alloying Elements in Zircaloy 4 Zr-4中合金元素的表面偏聚
The energetic beam induced surface segregation of metal ( Cu thin film)/ metal ( Ag substrate) structure irradiated by energetic atom beam and ion beam has been observed. 本文研究了金属(Cu)/金属(Ag衬底)系统的荷能束辐照引起的表面偏析现象。
Simple as it is, the new embedded atom theory is applicable to metallic hydrogen brittleness, point defects ( impurity and vacancy), surface reconstruction, surface segregation and phase stabilization of alloys. 介绍了一种新的EAM理论,它表述简单,而且已经成功地用于金属的氢脆、点缺陷(杂质和空位)、表面重构、合金的表面偏析和相稳定的特性的研究。
Surface segregation behavior of low-Z elements, e.g., lithium and beryllium on trinary alloy Al-Li-Mg and Binary alloy Cu-Be has been observed. 实验观察了三元合金Al-Li-Mg和二元合金Cu-Be中低Z元素(如Li和Be)的表面偏析行为。
Surface Segregation of Binary Alloys with Monte Carlo Simulation 二元合金表面偏析的MonteCarlo方法模拟
Our results for Si δ-doped GaAs indicate that all the Si peaks of SIMS depth profile show asymmetric broadening and surface segregation increases with growth temperature, however, which are not influencing the diffusion of Si atoms. 实验发现,外延生长Siδ掺杂GaAs时,随着生长温度的升高,Si掺杂分布SIMS峰非对称展宽,表面分凝作用加强,但不影响Si原子的扩散。
The results are as follows: ( 1) A transition metal adatom constrains surface segregation. 计算结果表明:(1)过渡金属吸附原子对DBA表面偏析有很大的抑制作用;
When only clean surface segregation is considered, the surface segregation of Pt at the alloy surface layer leads to an larger increase in chemisorption energy. 在仅考虑清洁合金表面偏析的情况下,Pt在合金表面的偏析导致化学吸附能较大幅度地增加,使化学吸附不稳定;
Sam and XPS studies on surface segregation OA substrate elements in au-ni-kovar alloy system Au-Ni-Kovar合金系统基底元素表面偏聚的SAM和XPS研究
Due to the combined effects of surface segregation and finite size confinement, the order-disorder phase transitions of the thin films are much more complicated than those of the bulk. 由于受到表面偏析场和有限尺寸效应的影响,薄膜有序无序相变比体材料相变要复杂。
Surface segregation in Mo-la alloy wire Mo-La合金丝的表面偏析研究
Monte Carlo simulation of surface segregation in Pt-Rh alloys with an analytic EAM model Pt-Rh二元合金系表面偏聚的分析型EAM模型计算
For the DBA, the effect of surface segregation, especially the change of surface segregation due to chemisorption is investigated. The results are as follows: ( 1) A transition metal adatom constrains surface segregation. 对于DBA,考虑了表面偏析现象,尤其研究了因化学吸附而导致表面偏析的变化。计算结果表明:(1)过渡金属吸附原子对DBA表面偏析有很大的抑制作用;
Synchrotron radiation X-ray reflection method is used to study the depth distribution of Ge atoms in Si crystals caused by surface segregation during the MBE growth. 用X射线反射方法研究了分子束外延技术生长的Si中Ge薄层异质结构的Ge原子分布特性。
The effect of chemisorption-induced surface segregation cannot be neglected in chemisorption. The chemisorption energy decreases with the increase of the hydrogen coverage θ. 化学吸附诱导表面偏析的影响在化学吸附中不能被忽略,化学吸附能随H原子覆盖度θ的增大而减小。
Surface segregation and enrichment of the polymer chains grafted in the surface of the particle occurred during the gel process, which can significantly improve the hydrophilicity, antifouling and flux of the membrane. 另外,粒子表面接枝的高分子亲水链在凝胶过程发生表面离析与富集,可显著改性膜亲水性和抗污染能力,提高膜通量。