查询词典 fiber graphite

Compared with the composites made of high density polyethylene , carbon black and graphite by solution blending, the composites made of polyphenylene sulfide , polyarylethersulfone with cardo group , short carbon fiber and carbon black by mechanical blending are provided with better repeatability of electrical resistivity.

聚苯硫醚和酚酞型聚芳醚砜与碳纤维和炭黑机械共混所得复合材料和高密度聚乙烯与炭黑和石墨溶液共混所得复合材料相比，前者具有电阻率较易控制、重复性较好的特点。

In this study, the electrical conductive composites (comprised of thermoplastic matrix resins-high density polyethylene, polyphenylene sulfide and polyarylethersuifone with cardo group, and conductive fillers-short carbon fiber, carhon black and graphite) are prepared and characterized in detail. The relation among composite structure and directalternating electric properties, some electric and magnetic parameters under X-band microwave and shielding effect, the mechanical behaviour are analysed. And furthermore, some relative experimental devices are developed.

本工作利用短切碳纤维、炭黑、石墨为导电填料填充热塑性树脂高密度聚乙烯、聚苯硫醚、酚酞型聚芳醚砜，制得具有良好导电性能和机械性能的导电性高分子复合材料，并以此为对象，研究了材料的稳恒电场和交变电场的基本特性与材料结构的关系，研究了在X波段微波场下的电磁参量及屏蔽效应，以及研究了复合材料及其基体树脂的力学行为，与此同时还建立了相应的表征测试手段。

The high temperature heat treatment technology and graphitization apparatus are the key in the manufacture of graphite fiber.

从高温热处理技术方面介绍了碳纤维在石墨化过程中微观结构的变化和宏观力学性能的改变。

When graphite plates are adopted as electrodes, the molality of HI in catholyte increases faster than activated carbon fiber cloth to lead to a quite low cell voltage.

采用石墨电极时的浓缩效果优于采用活性炭纤维布，但采用后者时EED槽电压明显低于前者，可使EED操作能耗有效降低。

X-ray radiography, X-ray radioscopy and X-ray computed tomography were performed to the C preforms and C/SiC composites made by chemical vapor infiltration method. Elementary research of the simulation of X-ray nondestructive testing of C preforms and C/SiC composites was conducted. The main contents and conclusions are summarized as follows:(1) The equivalent absorption coefficients of graphite and SiC to Al (KAl/sic, KAI/C) were measured. It was found that in 35-45KV, KAl/sic=1.1~1.2 and KAl/c=0.08~0.12. That means X-ray radiography was much less sensitive to fiber defects than to SiC matrix. It was suggested that Al Image Quality Indicator would be used to evaluate the quality of X-ray radiographs of C/SiC.

本文选择X射线照相、X射线实时成像和X射线CT等三种方法对C纤维预制体及C／SiC复合材料进行了检测和研究，并对C／SiC复合材料X射线检测的计算机模拟做了初步的探索，主要研究内容和结果如下：(1)测定了C和SiC的X射线照相等效系数，在35～45KV的条件下，Al对SiC的等效系数K_为1.1～1.2，Al对C的等效系数K_为0.08～0.12，所以X照相射线检测C／SiC对C纤维缺陷不敏感，而对SiC基体缺陷敏感。

Because of large difference in coefficients of thermal expansion between graphite fiber and magnesium matrix, there was high residual stress in matrix near the interface.

由于石墨纤维和碳化硅颗粒与镁基体的热膨胀系数相差很大，在界面区域基体中存在较高的残余应力。

The effect of carbon fiber on sliding electrical contact property of copper-graphite composite materials has been studied.

根据目前电力机车受电弓滑板应用的背景研究了在铜石墨复合材料中加入碳纤维后对复合材料滑动电接触性能的影响。

It is manufactured through kneading, cold pressing and post-treatment; and the materials for the synthetic brake shoe include butadiene-acrylonitrile rubber, phenolic resin, graphite, iron powder, barium sulfate, potash feldspar powder, composite fiber, sulfur, hexamethine tertramine, polymethylene aniline, 2-mercaptan benzothiazole, zinc oxide and toluene.

同时本发明的提供了采用捏合、冷压、后处理工艺来制造新型高摩擦系数合成闸瓦。组成新型高摩擦系数合成闸瓦的各组分重量百分比如下：丁腈橡胶为6.20％，酚醛树脂为10.00％，石墨为15.00％，铁粉为11.03％，硫酸钡为30.00％，钾长石粉为5.00％，复合纤维为20.20％，硫磺为1.00％，六次甲基四胺为1.00％，聚亚甲基聚苯胺0.12％，2-硫醇基苯并噻唑0.15％，氧化锌0.30％，甲苯8.0％。

Carbon fiber medium copper graphite composites with various carbon fiber contents were prepared by means of powder metallurgy. The dry friction tests of the composites under no current or current density of 20 A/cm 2 were conducted for 50 h under sliding velocity of 15 m/s and load of 4.9 N.

对采用粉末冶金法制备的含不同质量分数的碳纤维－中铜－石墨复合材料，在滑动速度为15m／s，载荷4.9N的条件下，分别进行了50h的不通电和通电干摩擦试验，并用扫描电镜对其磨损表面进行了观察分析。

M40J graphite fiber reinforced aluminum composite is fabricated by a vacuum liquid infiltration process and the effects of an acid phosphate binder on the properties of the fiber preform and its composite are studied in this paper.

以高模高强石墨纤维M40J增强铝基复合材料为研究对象，研究了真空液相压渗工艺中，偏磷酸铝粘接剂对纤维预制件抗压性能及复合材料力学性能的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。