查询词典 tensile

The desired tensile strain value is achieved by only changing the TMGa source flow during low-pressure metalorganic vapor-phase epitaxy.

在低压金属有机化学气相外延的过程中，只需调节三甲基Ga的源流量便可获得所要求的张应变量。

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。

The abrasive tool made with it is applicable to manufactuing both metel and nonmetals with low tensile strength, such as Gray Cast iron, nonferrous metal, stone,leather, rubber and so on.

用其制作磨具，适用于加工抗张强度低的金属和非金属材料，如：灰铸铁、有色金属、石材、皮革、橡胶等。

By means of optical and TEM microstructure analyses, room temperature and 900 ℃ tensile tests and X-ray diffraction phase and microchemical quantitative analyses, the structure and mechanical property changes of GH4199 superalloy after prolonged aging in the temperature range of 600℃ to 900℃ and time period of 100 h to 1000 h have been investigated.

采用金相和电镜微观组织观察、室温和高温拉伸试验、物理化学相分析等综合试验方法，对经600、700、800、900℃和100、200、500、1000h长期时效处理的GH4199合金进行测试和研究。

Microphotography,DSC,fiber and yarn tensile testers,and heat-shrink tester were used to analyze morphology, mechanical properties,shrinkage properties and thermal properties of three types of industrial PET filament.

采用显微照相系统、差热分析仪、纤维拉伸强力仪、纱线拉伸强力仪、热收缩仪等对3类工业用涤纶丝的形态结构、力学性能、热收缩性能等进行测试分析。

Test evaluation method of threshold stress of environmental cracking usually adopts NACE method A, refers to the NACE Standard Tensile Test. This test and its relevant data handling are introduced in this paper.

环境断裂临界应力的试验评价方法通常采用NACE方法A即NACE标准恒载荷延伸试验方法，对该方法及相关的数据处理作了介绍。

The geometry model formular is used to deduce the length of yarns, the oridentation angle of the nodulated yarns and the fiber volume content on some typical 2.5-D woven composites, such as shallow curve-linking structures, shallow straight-linking ones, and depp angle-linking ones, and tensile strength and compress strength of the composites are forecated.

借助模型推导出纱线在几种典型结构（浅交弯联、浅交直联、深角联）的单元体结构内的纱线长度、接结经的取向角和纤维体积分数，并对材料进行拉伸、压缩性能预测。

Based on the experimental results and analysis, new contributions given in this paper is as follows:(1) the new approximate formula developed in ref [7] for △ε of continuous and noncontinuous strain hardening materials from tensile properties under various R.

实验与计算结果及分析讨论表明：用新提出的Δε模型和近似公式，可以估算不同应力比条件下连续应变硬化和非连续应变硬化材料切口根部的Δε，但是，超载作用后，Δε应近似按弹性应力循环计算；首次给出了铝合金板材和低合金高强度钢FCI超载效应的定量表达式。

Glass fiber, a new type of inorganic nonmetal material, is widely used in electronic information, building material and environmental protection industry etc. It has the characteristics of noninflammability, thermostability, insulativity, high tensile strength and stable chemical properties.

玻璃纤维是一种新型无机非金属材料，现广泛应用于电子信息、建筑建材、环保等诸多领域，具有不燃、耐高温、电绝缘、拉伸强度高、化学性能稳定等优良性能。

The addition of phosphorus has a negative effect on the tensile properties on account of its solubility in CuAl 2 , and the formation ofO 2 oxide particles, where the latter act as nucleation sites for the formation of the CuAl 2 phase.

磷的增加有O 2的氧化物颗粒，就考虑其在CuAl 2溶解度，及在的形成拉伸性能的负面影响下，作为后者的成核行为的网站编队CuAl 2相。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"