电阻率

When the joint is brazed at 950℃ for 5min, the resistance of joint is below 5 mΩ and the average resistance is 3.3mΩ, while the joint shear strength reaches 16.34MPa. All of these meet the demand of the joint as a diverter.

在该实验条件下在950℃/15min工艺参数下获得的接头的电阻率低于5mΩ，平均电阻为3.3mΩ，接头的抗剪强度为16.34MPa满足该接头作为换向器接头的使用要求。

The effect of tensile strain on electrical resistance of continuous carbon fiber monofilament was investigated in this paper.

研究了连续碳纤维单丝的应变电阻效应，分析了在拉应力作用下其电阻率的变化规律。

It was found that the resisitivity of TiO2 thin films varied in the range from conductor, semiconductor to nonconductor in room temperature.

室温下测量TiO2薄膜的电阻率发现，随着厚度的增加TiO2薄膜的电阻率先后在导体、半导体和绝缘体范围变化。

To prove Ohm's law, R=ρ*L/S and specific resistance etc.

验证R=ρ*L/S 电阻定律，以及电阻率等。

It is found that CO2 laser irradiation results in a drsmiatic decrease in the resistivity and remarkable increases in the insulator-metal transition temperature T(subscript P and the temperature coefficient of resistance TCR.

与传统的高温退火类似，经CO2激光辐照后，样品的电阻率从1.3mΩ？cm下降到0.5mΩ？cm，绝缘态－金属转变温度和温度电阻系数分别从255K和7.9%？

A new making process of PTC small sensors is introduced and technological focal points in operations are detailed PTC small sensors (2 mm×2 mm×0 3 mm)with Curie temperature 120 ℃,resistivity at room temperature about 100 ohm·cm, temperature coefficient of resistance above 15%℃-1 ,rate of rise of resistivity ρ max /ρ min above 10 3 and time constant below 2 seconds have been made by use of new technology of isohydraulic formation, chip cut and scratch.

介绍了一种新的微型PTC元件的制造工艺，并对各个工序的技术重点做了详细阐述。作者采用等静压成型和切片、划片新工艺制成2mm×2mm×0.3mm微型PTC元件，其居里温度为120℃，室温电阻率为100Ω·cm，升阻比ρmax／ρmin大于103，电阻温度系数α≥15％℃－1，时间常数小于2s。

And the electrical resistance change is vali...

最后从金属材料的电阻率和电子元件构成属性对构件的电阻损伤参量作了初步探索的研究。

The design cross sectional area of shunt is calculated by the product of carrying rated current ratio and Bi-2223/AgAu matrix and shunt resistivity ratio. When quenching happens, shunt carries more current to void burn out or overheat of superconductor. Shunt which provides an enough heat sink can restrain the temperature rising of HTS section too fast.

分流器横截面积确定基于分流器与Bi-2223基体AgAu的电阻率对失超后电流分配比，这样保证超导体转人电阻态后分流器分流大部分电流，同时由于分流器具有很好热沉作用，抑制超导体温度迅速上升，从而避免超导材料烧毁或过热。

On electrical properties of multicrystalline silicon prepared by metallurgic method was investigated.

利用四探针电阻测试仪、光学显微镜、扫描电镜、电感耦合等离子发射光谱仪、能谱分析等设备，从晶粒尺寸、组织形态以及晶界析出物等对冶金法制备的多晶硅电阻率的影响。

Increased spin disorder and a decrease of with increasing Fe content are evident. It depopulates the hopping electrons and weakens the double exchange. From resistivity and magnetization data, it is expected that the addition of Fe can introduce grain boundaries and form antiferromagnetic clusters.

电阻率的峰值随着Fe的增加而增大，并且峰值对应的温度TIM向低温移动，随着外加磁场的增大电阻下降，产生MR效应，这是因为随着掺杂的增加，自旋无序增加，外场的增加抑制了自旋的扰动，在顺磁温区内，电子自旋形成了随机的磁结构，产生电子局域，破坏了极化子形成的环境，因此输运机制由绝热极化子输运转变为变程跳跃机制。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。