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tic
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  碳化钛
    For example, there is a mullite in stainless steel-SiC ceramic matrix composites, a WC in W-SiC composites, a TiC in Ti-SiC composites and an Al74Si6Mn20 in Mn-SiC composites.
    添加不锈钢、W、Ti和Mn的复合材料中分别对应有莫来石相、高温碳化钨相、高温碳化钛相和低熔点Al_(74)Si_6Mn_(20)相生成。
短句来源
    There were gathering and grow up of TiC in casting NiTi alloys remelted in graphite pot, Ti_2Ni nucleated and grown up on TiC, herringbone like TiC and Ti_2Ni was uneven distribution on NiTi matrix and generated lattice defect.
    采用石墨坩埚重熔重熔NiTi合金中有明显的碳化钛聚集和长大现象,并形成Ti_2Ni相偏析,分布形态为鱼骨状。
短句来源
    In order to study the effects of yttrium on the microstructure of the TiC/Ti composite, the Ti - xY matrix composites reinforced with TiC particles were fabricated by melting-casting. SEM, XRD and an energy spectrometer were employed to analyze the morphology, phase, and composition. The formation of TiC was discussed.
    为了研究钇对TiC/Ti复合材料微观组织的影响,采用熔铸法制备了TiC/Ti-xY复合材料,并利用 SEM、X射线衍射、EDS研究了复合材料的微观组织结构、相组成和元素组成,分析了复合材料中TiC的形成过程和微观组织.结果表明:制备的复合材料由钛和碳化钛两相组成,增强相TiC分布较为均匀,初生TiC呈枝晶状,并有含钇细长条共晶TiC析出;
短句来源
    Based on these results, the synthesis of TiC in Ti-petroleum coke system by MA was also studied, which is a beneficial exploration for cheap petroleum coke materials to be applied in a way of high additional value.
    在此基础上,对Ti-石油焦体系MA合成纳米碳化钛进行了探索性研究,这为廉价石油焦的高附加值应用寻找新出路进行了有益地尝试。
短句来源
    TiC particle (TiCp)reinforced Ti-6Al-4V alloy matrix composite has beeninvestigated because there is good bonding and compatibility between reinforcement and Tialloy matrix. Ti-6Al-4V alloy containing 15% TiCp had been processed via a P/M routefollowed by hot extrusion.
    本文研究了采用粉末冶金工艺制备的碳化钛颗粒(TiCp)增强 Ti-Al-V 复合材料的显微组织、弹性模量、高温强度、蠕变行为及断裂特征。
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  “tic”译为未确定词的双语例句
    Reaction Path Study of Preparation Ti_3SiC_2/SiC Compound Materials by TiC/Si Solid Reaction
    TiC/Si固相反应制备Ti3SiC2/SiC复合材料的反应路径研究
短句来源
    Fabrication of TiC Matrix Fe-Al and Ni-Al Intermetallics Composites by Spontaneous Melt Infiltration and the Investigation of the Microstructure and Properties of the Composites
    TiC基Fe-Al、Ni-Al金属间化合物复合材料的自发熔渗制备和结构性能研究
短句来源
    Fabrication of TiC Particulate Reinforced Magnesium Matrix Composites
    TiC颗粒增强镁基复合材料的制备
短句来源
    Fabrication of TiC Particulate Locally Reinforced Casting Steel Matrix Composites
    TiC颗粒局部增强铸造钢基复合材料的制备
短句来源
    Study on Microstructure and Wear Resistance of TiC_p/AZ91 Magnesium Matrix Composites
    TiC_p/AZ91镁基复合材料组织及耐磨性的研究
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  tic
Two classes of Mallows GM-estimators with invariance are considered in the stochas-tic linear regression model.
      
The liquid chromatograms obtained by DAD, total ion chromatograms (TIC) from positive-and negative-ion ESI-MS and the positive-and negative-ion APCI-MS were compared.
      
The liquid chromatograms obtained by TIC from ESI-MS provided more information on chromatographic peaks than those obtained by DAD or TIC from APCI-MS.
      
It is suggested that the fingerprints of the compound Ilex pubescens extract should be provided by the liquid chromatograms obtained by DAD together with TIC from the negative-ion ESI-MS.
      
In the liquid chromatogram obtained by TIC from the negative-ion ESI-MS, the molecular weights of 23 main components were determined based on the corresponding positive-and negative-ion ESI mass spectra information.
      
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The effect of long term exposure at high temperature on structure stability of a hot corrosion resistance Ni-bace alloy with high chromium content is investigated. It is found that the high chromium content makes TiC in the alloy unstable. It is resolved obvious'y above 950℃, and turned into Cr23C6 by reaction at the interface of phases. After long term exposure at 850℃, there is not TCP or η phase except the degeneration of MC carbides and the aggregation of γ' phase. The mechanical properties of alloy...

The effect of long term exposure at high temperature on structure stability of a hot corrosion resistance Ni-bace alloy with high chromium content is investigated. It is found that the high chromium content makes TiC in the alloy unstable. It is resolved obvious'y above 950℃, and turned into Cr23C6 by reaction at the interface of phases. After long term exposure at 850℃, there is not TCP or η phase except the degeneration of MC carbides and the aggregation of γ' phase. The mechanical properties of alloy are stable and the ductility is increased with exposure time. TiC at grain boundaries makes the alloy brittle and the large block TiC turns into fine Cr23C6 particles with mosaic structulc after long term exposure therefore the ductility of grain boundaries is improved. Finally, the strength of matrix and the strength contributed by γ' after long term exposure are calculated. The results are consistent with the experiments.

本工作系统地研究长期高温时效对高铬含量的Ni-基耐热腐蚀合金组织稳定性的影响。发现高铬含量使TiC相变得不稳定,950℃以上有明显溶解,通过相界反应转变成Cr_(23)C_6而溶入基体中。850℃长期时效不出现η和TCP相,易发生MC蜕化反应和Υ′粗大化,性能稳定,塑性逐渐提高。合金相组分与热处理制度无关。断口分析确定合金长期时效后塑性提高的原因是晶界上的大块脆性TiC转变成细小的、具有嵌镶结构的,包有Υ′膜的Cr_(23)C_6,提高了塑性。最后计算了合金基体的强度和长期时效后Υ′相对强度的贡献,结果与实验相符。

The effect of carbon contents on the transverse rupture strength of TiC-Mo2C-Ni cermets was studied at the temperature range from 600℃ to 1000℃.It was found that T. R. S at temperature up to 600℃ had no relation to carbon contents of cermets, and low-medium carbon cermets indicated higher strength than that of high carbon cermets at 800℃. However, it was not so marked at 1000℃. The effect of carbon contents in the cermets was attributed to variation in carbide (TiC + Mo2C) grain size and binder domain...

The effect of carbon contents on the transverse rupture strength of TiC-Mo2C-Ni cermets was studied at the temperature range from 600℃ to 1000℃.It was found that T. R. S at temperature up to 600℃ had no relation to carbon contents of cermets, and low-medium carbon cermets indicated higher strength than that of high carbon cermets at 800℃. However, it was not so marked at 1000℃. The effect of carbon contents in the cermets was attributed to variation in carbide (TiC + Mo2C) grain size and binder domain size.

研究600~1000℃时碳含量对TiC-19%Mi_2C-24%Ni合金高温强度的影响。在600℃以下抗弯强度与碳含量无关。在800℃时,低、中碳合金比高碳合金具有较高的强度,随温度的升高这种影响减弱。碳含量对合金高温强度的影响是通过合金碳化物相的粒度和粘结相的粒度变化而起作用的。

Having been developed over ten years, a great advance was made in both remanence and energy product of Fe-Cr-Co permanent magnetic alloys insomuch that the maximum energy product (BH)max and remanence Br are nowadays up to 10×106 Gs.Oe and 14,000Gs respectively. But the coercive force is still as low as only 500~600 Oe when heat-treating the alloy in an ordinary way. To raise the coercive force of Fe-Cr-Co alloys, measures as preparing columnar crystals or introducing a certain thermoma-gnetic process should...

Having been developed over ten years, a great advance was made in both remanence and energy product of Fe-Cr-Co permanent magnetic alloys insomuch that the maximum energy product (BH)max and remanence Br are nowadays up to 10×106 Gs.Oe and 14,000Gs respectively. But the coercive force is still as low as only 500~600 Oe when heat-treating the alloy in an ordinary way. To raise the coercive force of Fe-Cr-Co alloys, measures as preparing columnar crystals or introducing a certain thermoma-gnetic process should be taken and it only can be carried out under ad hoc conditions. As an alternative, the possibility of raising coercive force by means of improving technological process of heat treatment and controlling alloying ingredients has been studied for years and the result is presented in this paper.Summary. As a means to obtain magnetic texture, thermomagnetic treatment(TMT) is regearded as favourable to the alloys in solid solution state, depending upon those particles taking place on the matrix of a-phase which come into magnetic phase after spinodal decpmpositipn with preferred orientation in the directions of magnetic field. Better properties can therefore be achieved after TMT and proper ageing followed. Experiments were performed on the supposition that the values of both coercive force and maximum energy product can be raised further by a secondary TMT followed by a proper ageing, for which the alloy to be treated is already decomposed and in phase equilibrium. The supposition has been verified the way the magnetic tex-tures of alloy specimens prepared from secondary TMT (see Fig.1) were further controlled through torque magnetometry and electron-microscopy such that the strong magnetic phase particles were elongated and the volume of weak magnetic phase particles increased. The result is regarded as that it is caused by the secondary TMT carried on a dualphase matrix and by the ferromagnetic elements diffused in the directions of magne- tic field with ease under the high-temperature solution of alloy specimens by reheating, thus improving further the magnetic texture, and the coercive force can be reached over 1,000 Oe therefrom.Fig.1 Flow diagram of secondary TMT --primary; ........secondary.Fig.2 Comparison of torque magnetometryprimary, 625℃×30min. ; ° secondary, 635℃×30min.Fig.3 Anisotropy constant Ku1 of 5 specimens as a function of the treating time of primary TMTprimary, 635℃10, ×15, ×20, ×30 and ×40 min. resp; followed by ageing) ° secondary, 635℃×20min followed by ageing.Fig.4 Anisotropy const ant Ku1 of 3 specimens as a function of the temperature of TMTprimary, at 625℃, 635℃ and 645℃ resp. followed by ageing; ° secondary, temperatures are the same with primary, followed by ageing.Fig.5 Miscibility gap of 25% Co-bearing Fe-Cr-Co alloysTab.1 Composition of alloy testedTab.2 Magnetic properties of alloy specimens after various HTTab.3 Magnetic properties of tested alloys in relation to different HT regimesTab.4 Size change of particles after primary and secondary TMT in averagePhotos 1-8 TEM micrographs of alloy specimens after different HT regimes

本文研究高钴Fe-Cl-Co可加工永磁合金。通过二次磁场热处理及时效后,其性能在一次磁场处理及时效的基础上,将最大磁能积(BH)_(max)提高了1—0.5×10~6GsOe,矫顽力达到1000Oe以上,剩磁Br稍有下降。转矩测量和电镜观察表明这种磁性能的增加,主要是强磁性相粒子延伸与弱磁性相体积增加的结果。这种合金的磁硬化机制符合单畴转动模型。

 
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