金属化薄膜电容器自愈性分析

使用金属化薄膜通过卷绕、热压、喷金、真空浸漆、分选等工序生产的电容器就是金属化薄膜电容器。根据其生产材料不同又分为金属化聚酯薄膜电容器和金属化聚丙烯薄膜电容器。该文介绍了金属化薄膜电容器的结构、生产流程、性能指标,并对金属化薄膜电容器的自愈性进行了分析,论述了影响金属化薄膜电容器自愈性的内部因素和外部因素,根据生产现状提出了工艺改进措施。     

厚膜混合集成电路孔金属化制造工艺探讨

随着电子产品技术含量的不断升级,对于厚膜混合集成电路的制造工艺提出了更高的要求,从而产生了孔金属化的制造工艺。文章主要阐述了孔金属化的原理和制造工艺,并结合多年的生产经验,对影响孔金属化制造的因素进行探讨和总结。     

金属化电容器的自愈特性

介绍了金属化有机薄膜电容器的自愈特性,阐述了电容器自愈同工作电压和金属膜厚度的大致关系,以及提高金属化膜电容器耐压的办法。     

半球陀螺谐振子的金属化镀膜工艺技术研究

高品质因数(即高Q值,Q>107)的石英半球谐振子是制造高精度半球谐振陀螺的关键,而球面金属化镀膜工艺是半球振子制造的重要工艺环节。该文介绍了金属化镀膜工艺及其膜层均匀性对谐振子品质因数的影响及降低膜层残余应力的工艺解决方案等。     

组合式金属化聚酯膜电容器的研制

采用金属化聚酯膜、铝金属膜电极、无感式卷绕结构，研制成了ＣＬ２０１型组合式金属化聚酯膜电容器，其体积比箔式电容器要小１／２～２／３，比率电容量也相应提高了，并且电容器具有良好的自愈性。     

新一代金属化安全膜防爆电容器（上）

金属化有机薄膜电容,电性能优良,且有良好的自愈性,与其它类型电容器相比较其可靠性较高,被广泛地用于对可靠性要求较高的电子设备中.因金属化有机薄膜在电容器连续发生自愈击穿的过程中,在电弧高温作用下,自愈点周围的有机薄膜局部软化,使电性能急剧下降,甚至使多层介     

孔金属化印制板直接金属化工艺

概述了利用ｐｄ／Ｓｎ催化剂活化和后活化处理有机结合的直接电镀工艺，适用于制造孔金属化印制板。     

氮化铝陶瓷基板发展现状

本文较详细地阐述了氮化铝粉，氮化铝基板及氮化铝基板金属化的制造工艺，研究生产发展现状，并对一些特性进行了分析。     

金属化有机薄膜电容器的自愈问题

金属化有机薄膜电容器的最大特点就是它可以自愈,从而具有较高的可靠性。但是有关自愈的问题比较复杂,且至今研究得并不透彻。故本文给以系统性讨论。     

利用导电性聚合物的直接电镀工艺

概述了利用导电性聚合物的直接电镀工艺,适用于制造孔金属化印制板。     

ATM自愈网中VP交换机对混合自愈算法性能的影响分析

本文在ＡＴＭ自愈网采样混合自傅垢条件下,对ＶＰ交换机中几各典型的自愈功能实现方案建立了相应的排队模型;进行了大量的计算机模拟试验,详尽分析了ＶＰ交换机中自愈功能实现方案以及ＶＰ交换机的一些重要性能参数对自愈性能的影响,所用的研究方法具有普遍意义,所得的分析结果对于如何确定ＶＰ交换机中自傅 及一些重要性能参数,以实现最了的知愈性能,具有指导意义。     

DCS在网状自愈网中的应用

随着通信网向综合化，智能化的发展，自愈在网络中占有越来越重要的地位。本文首先介绍了利用ＤＣＳ的重构能力在ＳＤＨ网状自愈网中的应用，然后分析了ＳＤＨ－ＤＣＳ设备影响自愈时间的几个因素，最后提出了利用ＡＴＭ－ＶＰＸ在ＡＴＭ层实现了自愈功能。     

波分复用光网络的自愈方法分析

WDM (WavelengthDivisionMultiplexing ,波分复用 )系统的应用使得大容量的业务日益集中于同一系统内 ,这同时提高了对网络自愈性能的要求 ,从而导致各种自愈技术的发展。因为光器件具有高速交换的优点 ,因而从光层对业务恢复具有极大的优越性。文中主要分析了几种典型的光层的自愈方法     

Highly Efficient and Water‐Insensitive Self‐Healing Elastomer for Wet and Underwater Electronics

Integrating self‐healing capabilities into soft electronic devices increases their durability and long‐term reliability. Although some advances have been made, the use of self‐healing electronics in wet and/or (under)water environments has proven to be quite challenging, and has not yet been fully realized. Herein, a new highly water insensitive self‐healing elastomer with high stretchability and mechanical strength that can reach 1100% and ≈6.5 MPa, respectively, is reported. The elastomer exhibits a high (>80%) self‐healing efficiency (after ≈ 24 h) in high humidity and/or different (under)water conditions without the assistance of an external physical and/or chemical triggers. Soft electronic devices made from this elastomer are shown to be highly robust and able to recover their electrical properties after damages in both ambient and aqueous conditions. Moreover, once operated in extreme wet or underwater conditions (e.g., salty sea water), the self‐healing capability leads to the elimination of significant electrical leakage that would be caused by structural damages. This highly efficient self‐healing elastomer can help extend the use of soft electronics outside of the laboratory and allow a wide variety of wet and submarine applications.     

Hierarchically Structured Self‐Healing Sensors with Tunable Positive/Negative Piezoresistivity

It is a challenge to manufacture flexible sensors that possess easily distinguishable biomotion signals, strong response reliability, and excellent self‐healing capability. Herein, a self‐healing sensor with tunable positive/negative piezoresistivity is designed by the construction of hierarchical structure connected through supramolecular metal–ligand coordination bonds. The developed sensors can be integrated with the human body to detect multiple tiny signals, such as pronunciation, coughing, and deep breathing. Interestingly, the nanostructured elastomer sensor with and without a flexible yarn electrode shows negative and positive current signals, respectively, making it easy to be identify. Furthermore, it exhibits very fast (2 min), autonomous, and repeatable self‐healing ability with high‐healing efficiency (88.6% after the third healing process). The healed samples still possess flexibility, high sensitivity, and accurate detection capability, even after bending over 10 000 cycles. The excellent biomimetic self‐healing performance combined with the tunable piezoresistivity make it promising for next‐generation wearable electronics.     

Transparent,Mechanically Strong,Extremely Tough,Self‐Recoverable,Healable Supramolecular Elastomers Facilely Fabricated via Dynamic Hard Domains Design for Multifunctional Applications

The design and synthesis of supramolecular self‐healing polymers with high healing efficiency and excellent integrated mechanical properties is challenging due to conflicting attributes of dynamic self‐healing and mechanical properties. Herein, this study introduces a design concept, that is, “dynamic hard domains,” to balance self‐healing performance, mechanical strength, elastic recovery, and at the same time obtain extreme toughness. The essential features of the dynamic hard domains include: (i) a noncrystallized and loose structure, (ii) low binding energy and high mobility, and (iii) sequential dissociation and rapid rearrangement. Based on this strategy, a simple one‐step polycondensation route is reported to synthesize a transparent polyurethane‐urea supramolecular elastomer (PPGTD‐IDA), which successfully combines decent mechanical strength, extreme toughness, outstanding notch‐sensitiveness, self‐recoverability, and room‐temperature self‐healing. Upon rupture, the PPGTD‐IDA completely restores the mechanical properties within 48 h. Furthermore, the results demonstrate repeatable healing of mechanical properties and prominent antiaging healability. Taking advantages of merits of PPGTD‐IDA, it can be utilized for fabricating impact‐resistant materials for protection of aluminum alloys as well as stretchable and self‐healing conductors, which exhibits unique characteristics such as stable conductivity during stretching (even after healing or with notch), and automatic elimination of the notch during stretching/releasing cycles.     

ATM自愈网中VP交换机对满溢自愈算法性能的影响分析

在ＡＴＭ自愈网采用满溢算法的条件下，对ＶＰ交换机中几种典型的自愈功能实现方案建立了排队模型，进行了大量的计算机模拟试验，详尽分析了ＶＰ交换机中自愈功能实现方案以及一些重要结构参数对自愈性能的影响。分析结果对于如何确定ＶＰ交换机中自愈功能实现方案及一些重要结构参数，以实现最好的自愈性能，具有指导意义。     

Self‐Healing Materials for Energy‐Storage Devices

The booming development of electronics, electric vehicles, and grid storage stations has led to a high demand for advanced energy‐storage devices (ESDs) and accompanied attention to their reliability under various circumstances. Self‐healing is the ability of an organism to repair damage and restore function through its own internal vitality. Inspired by this, brilliant designs have emerged in recent years using self‐healing materials to significantly improve the lifespan, durability, and safety of ESDs. Extrinsic and intrinsic self‐healing materials and their working principles are first introduced. Then, the application of self‐healing materials in ESDs according to their self‐healing chemistry, including hydrogen bonds, electrostatic interactions, and borate ester bonds, are described in detail. Based on these, critical challenges and important future directions of self‐healing ESDs are discussed.     

Developments and Challenges in Self‐Healing Antifouling Materials

Self‐healing antifouling materials have gained rapidly increasing interest over the past decade and have been studied and used in a rapidly increasing range of applications. Recent developments and challenges in self‐healing antifouling materials are summarized in four sections: first, the different mechanisms for both antifouling and self‐healing are briefly discussed. Second, three main categories of self‐healing antifouling materials based on surface replenishing and dynamic covalent and noncovalent interactions are discussed, with a focus on the preparation, characterization, and central characteristics of different self‐healing antifouling materials. Third, different types of potential applications of self‐healing antifouling materials are summarized, such as injectable hydrogels and oil/water separations. Finally, a summary of future development of the field is provided, and a number of critical limitations that are still outstanding are highlighted.     

SDH自愈环网中高性能开关的实现方法探讨

ＩＴＵ－Ｔ与ＡＮＳＩ在ＳＤＨ／ＳＯＮＥＴ标准方面的进展，加快了世界各国在传输系统上的改造，其先进的ＯＡＭ功能可用于建立具有故障保护的自愈环网络，这种自愈环包括分插复用器。ＡＤＭ中的开关在其自愈环工作中起着重要作用。本文为确定其对ＡＤＭ开关的需要，分析了自愈环结构２与原理，以此基础上，介绍了能明显减少硬件数量的新的空分交换方法。