炼油厂储罐喷铝内防腐效果分析

分析了炼油厂储罐内壁受到腐蚀的原因,简要介绍了喷铝加传统封闭涂料的防腐工艺及其应用效果,探讨了该防腐工艺的失效机理,并提出了改进措施。     

对环氧煤沥青涂料防腐蚀施工规范的一些探讨

对规范中关于环氧煤沥青防腐涂料的技术要求和施工程序进行了分析，指出埋地设备和管道表面处理的除锈等级要求不足够、涂料性能指标要求以及不同涂层结构涂料品种的选用不明确，提出了补充的建议，为完善技术规范作了一些尝试。     

开发动态的功能模拟预测方法及应用

在考虑多类别、多种因素对动态指标以及成本预测的综合影响时,往往缺少定量化模拟预测手段,由于油藏工程方法多属于机理型模型、单一条件统计规律模型,因此不适合此类条件下的定量预测。本文分析了功能模拟方法进行开发动态模拟预测的技术可行性,提出建立软件系统解决具体工作应用问题。作为一种具有实际操作性的、考虑多参数(可包括产量、成本、工作量等参数)约束控制拟合的开发动态预测方法,可减少实际开发过程中各种复杂因素的影响,并可推广应用于所涉及到的多个工作领域。     

一种卧式多腔室连续捏合装备的应用

为实现捏合设备的连续捏合、安全装填,设计一种卧式多腔室连续捏合的装备。各腔室温度、功能桨叶转速、喂料速度直接影响产品的装填质量、装填密度以及设备产能。结果表明：随着物料配方的不同,对各功能桨叶的有效组配、桨叶外形的优化、各腔室物料网板的选择能有效提高产品捏合的均匀性和捏合质量。     

中红外高激光破坏阈值薄膜的研究

针对中红外波段（尤其是2.94 μm波长）,选择合适的薄膜材料并结合适当的制备工艺参数,优化制备出了几种高破坏阈值2.94 μm激光腔镜。使用了1.06 μm和2.94 μm两种波长的激光对样品进行了破坏阈值实验。通过实验结果进行对比,总结出该波段高破坏阈值光学薄膜的一些独特性质以及镀制要求,得出一套有效地镀制高激光破坏阈值中红外薄膜的方案。所镀腔镜经过自制的自由震荡式长脉宽2.94 μm Er:YAG激光器的使用检验,满足使用要求。     

三段式钢管涂塑设备的设计与应用

针对目前国内钢管涂塑设备在安装后需要进行二次改造才能满足生产要求的问题,设计了一种钢管涂塑设备三段式生产线,并对原有涂塑工艺进行了改进。该三段式生产线由两段式结构改进而来,钢管内外表面处理后首先进行预热内涂,随后表干进行外涂,待外涂层固化即完成整个涂装作业。采用该种设计,涂塑生产可覆盖直径15～500 mm的钢管,并能有效解决钢管内外表面涂塑中存在的工艺支点问题,可达到多种涂塑工艺要求。     

Ir/HfO2复合涂层的制备及性能研究

利用化学气相沉积(CVD)技术制备了HfO2涂层和Ir/HfO2复合涂层,采用金相显微镜(OM)、扫描电镜(SEM)、电子探针(EPMA)对涂层的性能进行分析。结果表明:在沉积Ir时,沉积室升温速率≤10 ℃/min时,制备出的Ir/HfO2复合涂层经真空高温热处理后可获得表面质量良好的Ir层,且Ir层纯度达到99.77%;真空热处理有益于提高Ir/HfO2复合涂层之间的结合程度,且热处理温度越高,结合效果越好;表面制备有HfO2涂层的Ir棒在1980 ℃氧化10 h的条件下,HfO2涂层对Ir的保护效果显著,可将Ir的氧化深度由毫米级降至数十微米。     

π‐Conjugated Molecules Crosslinked Graphene‐Based Ultrathin Films and Their Tunable Performances in Organic Nanoelectronics

Graphene‐based ultrathin films with tunable performances, controlled thickness, and high stability are crucial for their uses. The currently existing protocols, however, could hardly simultaneously meet these requirements. Using amino‐substituted π‐conjugated compounds, including 1,4‐diaminobenzene (DABNH2), benzidine (BZDNH2), and 5,10,15,20‐tetrakis (4‐aminophenyl)‐21H,23H‐porphine (TPPNH2), as cross‐linkages, a new protocol through which graphene oxide (GO) nanosheets can be anchored on solid supports with a high stability and controlled thickness via a layer‐by‐layer method is presented. A thermal annealing leads to the reduction of the films, and the qualities of the samples can be inherited by the as‐produced reduced GO films (RGO). When RGO films are integrated as source/drain electrodes in OFETs, tunable performances can be realized. The devices based on the BZDNH2‐crosslinked RGO electrodes exhibit similar electrical behaviors as those based on the non‐π‐conjugated compound crosslinked electrodes, while improved performances can be gained when those crosslinked by DABNH2 are used. The performances can be further improved when RGO films crosslinked by TPPNH2 are employed. This work likely paves a new avenue for graphene‐based films of tunable performances, controlled thickness, and high stability.     

Modulating Blue Phosphorene by Synergetic Codoping: Indirect to Direct Gap Transition and Strong Bandgap Bowing

The structural and electronic properties of synergistically modified blue phosphorene (BP) is investigated. The inversion and threefold rotational symmetries of BP are broken. The codoping of group IV and VI impurities can turn monolayer BP into direct bandgap semiconductors. The underlying physical mechanism is that group IV and VI impurities tailor the valence band maximum and conduction band minimum, respectively, and move them to Γ. All the bandgaps of monolayer, nanoribbons, and quantum dots of BP can be modulated in a wide range, and the strong bandgap bowing is found. In addition, the Coulomb interactions between the screened impurities are revealed. Lower formation energies indicate the fabricating practicability of synergeticly modified BP. Spin–orbit coupling (SOC) can also be tuned by the introduction of impurities.     

大功率射频板条CO_2激光器电极波导介质膜研究

针对高功率射频板条CO2激光器铜电极表面放电氧化、受射频放电的电子溅射,致使电极表面不光滑,辉光放电不均匀,光波导损耗严重等问题。利用Al2O3波导介质膜具有的反常色散效应、耐高温能力强的特点,采用磁控溅射镀膜技术对激光器电极表面先镀Al,而后阳极氧化获得Al2O3波导介质膜。分析了磁控溅射工艺对膜层结构的影响,测量了镀膜电极对CO2激光的反射率,并进行了放电实验检测。结果表明,溅射功率为250 W时可得到致密的镀膜层结构;厚度6μm的Al2O3薄膜,对波长10.6μm的CO2激光波导反射率最高达75%;电极镀膜后激光器输出功率在占空比为30%时为700 W,占空比为60%时达到了1300 W。