查询词典 cathode

The cathode fall region of hot cathode glow discharge is a very narrow area close to the cathode surface.

工作在高压强下的热阴极辉光放电的阴极区是一个紧靠阴极表面、极其狭窄的区域，对于金刚石膜PCVD的沉积工艺不产生直接影响，然而，它是维持辉光放电所必需的关键区域。

Especially, cathode temperature has a strong influence on the discharge property of cathode fall region via its influence on electron emission process. This is one of the most typical properties of hot cathode glow discharge.

特别是阴极温度对放电特性的影响，它是通过热阴极的温度对热电子发射过程的影响来实现的，也是区别于常规冷阴极辉光放电的一个重要放电特征。

The cathode temperature is an important parameter during the studying themechanism on the cathode erosion and cathode electron emission, so we set up adevice of two-wavelength pyrometry.

在研究阴极烧损物理机制和阴极电子发射机理的过程中，阴极温度是一个重要的参数，因而我们建立了一套双波长高温测量系统用于测量阴极温度。

The ECM productivity of inner ratchet wheel is very high. Cathode piece is machined easily using WEDM. Its dimension is nicety. Cathode is not worn down in process,so a piece of cathode can be repeat used to machining tens or several hundred parts. The surface quality of inner ratchet wheel being machined is nice. There is no burr in the surface. Its surface roughness can reach Ra1.6μm.Its ...

应用电化学加工技术加工内棘轮，生产率很高；采用线切割加工片状工具阴极，制作方便、尺寸准确；加工过程中工具阴极无损耗，一片阴极可以重复加工几十至几百个零件；加工出的内棘轮表面质量好，无飞边毛刺，表面粗糙度可达Ra1.6 μm ；加工精度较高。

The effects of structural parameters of target cathode on magnetic field distribution during magnetron sputtering were simulated and analyzed to design a new-type rectangularly plane cathode,then the magnetic field of the designed cathode was simulated and analysed.

文章模拟分析了结构参数对磁控溅射阴极磁场分布的影响，设计了一种新型的矩形平面磁控溅射阴极，并对设计的阴极磁场进行模拟分析，结果表明有效提高了靶材表面磁场分布的均匀性。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

As a nondestructive technique to measure the inner fine structure of the cathode, the ICT has the unique advantage. We discussed the emission mechanism of thermionic cathode, and tried to explain the excellent performance of mixed metal cathode by Richardson formula and Muller's computational model.

就当前钡钨阴极发射机理的两个主要理论模型作了自己的探讨，并初探了钡钨阴极中钡的供应机制及发射寿命预测的问题，而且用理查逊公式的推导和Muller计算机模拟法解释了混合基钡钨阴极的优良性能。

The cathode phenomena in hollow cathode arc discharge in vacuum wereinvestigated systematically. The influence of welding parameters on active zone ofhollow cathode , arc appearance and voltage-ampere curve was investigated.

小电流的发散态电弧能量密度低，柔性大，可作为局部加热热源进行真空钎焊；大电流的可作为理想的熔焊热源，进行各种难熔易氧化金属在真空条件下的高质量焊接。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能，且合金内的V元素会向表面富集，因此，钛合金真空热处理和表面涂层的烧结温度不能过高，即应低于其相转变点；通过对生物活性梯度涂层的组成和结构的设计，分析和计算了梯度涂层内的应力大小和分布，结果表明：对于本研究，当成分分布系数n=1.5时，可以获得较合理的涂层力学性能，即在沉积开始时，采用富含BG颗粒的悬浮液，以便在钛合金侧获得同底层BG有良好过渡的富BG涂层；梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定，改变成分分布系数，只能改变涂层内应力变化的趋势；涂层的厚薄不影响涂层内的应力分布规律，但涂层越薄，涂层内的应力变化越快，但这并不意味着涂层越厚越好，因为涂层越厚，涂层允许的变形越小，对于应用于弯曲受力部位的涂层而言，涂层应薄一点为好(50μm)；而对于仅纯受剪切应力的部位，如牙根种植体，涂层可适当加厚(80～100μm)；通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现，它们在水溶液体系中很难发生电沉积；在无水乙醇溶液中，HA颗粒带正电，可在阴极钛合金片上发生均匀的电泳沉积，而BG颗粒则带负电荷；利用复分解反应法，可以制得100～300nm的HA，通过诱导HA在BG颗粒表面结晶，可对BG颗粒进行表面包覆，获得了被HA包覆的BG颗粒，改变了BG颗粒表面的带电特性，使BG和HA颗粒在无水乙醇中均带上正电荷，从而实现了HA和BG颗粒在阴极上的共沉积。

Due to the cathode oxidizability and electrolyte instability, some primary reactions, such as electrolyte decomposition, cathode materials dissolution and self-heating redox reaction, arised at the cathode/electrolytes interface in Li-ion batteries, which deteriorated the electrochemical properties and safety of the batteries.

锂离子电池中的正极/电解液界面反应：电解液的氧化分解、正极材料腐蚀溶解及正极材料的自热氧化还原反应等，均能对电池的电化学性能和安全特性产生不良影响。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。