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coatings
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  涂层
    Study on Acrylic Based Polyurethane/Nanosilica Composite Coatings
    丙烯酸酯聚氨酯/纳米二氧化硅复合涂层的研究
短句来源
    Preparation and Characterization of Polyester-based Polyurethane/SiO_2(TiO_2) Nanocomposite Coatings
    聚酯聚氨酯/SiO_2(TiO_2)纳米复合涂层的制备及表征
短句来源
    Study on Microstructures and Properties of Plasma Sprayed Nano-ceramic Thermal Barrier Coatings
    等离子喷涂纳米陶瓷热障涂层组织与性能研究
短句来源
    Study of Biomimetic Gradient Nano-composite Coatings on Metal Materials Surface
    金属材料表面仿生梯度纳米复合涂层的研究
短句来源
    RESIDUAL STRESS AND STRESS RELAXATION IN CVD SiC-C GRADIENT COATINGS ON ZrB_2 CERAMICS
    CVD·SiC-C 梯度涂层中的残余应力及应力缓和
短句来源
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  涂料
    Evaluating the Structure Formation Ability of BentonitesUsed for Foundry Coatings
    铸造涂料用膨润土结构形成能力的测定
短句来源
    Anti-Oxidation of Phosphate and Boron Contained Coatings for C/C Composite Brake Material
    C/C复合材料的磷酸盐与硼系涂料的防氧化研究
短句来源
    Application of Nanophase Materials in Automobile Coatings
    纳米材料在汽车涂料中的应用
短句来源
    My view point on the nanometric technology and nanometric coatings
    纳米技术与“纳米涂料”之我见
短句来源
    Application of Nanomaterials in Coatings Industry
    纳米材料在涂料中的应用
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  镀层
    the deposition rate and compositions of the coatings could be controlled by controlling c(Co2+)/c(Ni2+)in bath;
    通过控制镀液中c(Co2+)/c(Ni2+)的比值,可控制沉积速率及镀层中镍、钴元素的相对含量;
短句来源
    The results show that crystalline phase transition temperature is about 300℃, and the composite particles in the plating solution results in the decreasing of crystallization temperature of the coating as absorbing the H ions. A complex structure of Ni3P+Ni+UFD is achieved after crystallizing in the coatings.
    300℃左右时,镀层开始晶化,与Ni-P复合镀相比,复合粒子的加入使晶化温度降低:时效晶化后,复合镀层的结构为Ni3P+Ni+UFD的混合结构。
    The composite coatings of n-Al2O3/Ni were prepared by electro-brush plating.
    利用电刷镀技术制得了含n-Al2O3颗粒的纳米复合镀层
    Under loads of 60N and 140N, the fatigue life of the coatings reached over 1000000 cycles.
    复合镀层在60 N和140 N载荷下均有较好的抗接触疲劳性能,其寿命达到百万次以上;
    Ni-nano Si3N4 composite coatings were prepared by plus-deposition method on the stainless steel.
    采用脉冲电沉积法,在不锈钢上制备Ni-纳米Si3N4复合镀层
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  “coatings”译为未确定词的双语例句
    Effects of Deposition Parameters on Microstructure, Interface and Hardness of Ti/TiN and CrN/Si_3N_4 Nanolayered Coatings and Their Thermal Stability
    沉积条件对Ti/TiN,CrN/SiN_x纳米多层膜微观结构、界面结构和硬度的影响及其热稳定性
短句来源
    Deposition of (TiAl)N Coatings dy DC-PCVD
    用PCVD法制备(TiAl)N膜的研究
短句来源
    LASER GLAZING OF Ni—Nb ALLOY COATINGS ON Cu—BASED AND OF Fe—BASED ALLOY
    铜基体上Ni—Nb合金层和铁基合金激光非晶化研究
短句来源
    EFFECTS OF Al CONTENT ON MICROSTRUCTURES AND PROPERTIES OF (Ti,Al)N COATINGS
    Al含量对(Ti,Al)N薄膜微观结构与性能的影响
短句来源
    The Effect of Ni Content on Physical Properties and Cracking Susceptibility of Laser Cladding Fe-Cr-Ni Coatings
    Ni含量对Fe-Cr-Ni合金激光熔覆层性能及开裂敏感性的影响
短句来源
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  coatings
Thin films and multi-layered coatings comprised of different classes of materials are often used for various functional devices.
      
In addition, the residual stress distributions in the functionally and compositionally graded coatings were also analyzed.
      
Carbon fibres (CF) were modified with different oligomeric silsesquioxane (SSO) coatings to improve the interfacial property of carbon fibres/polyarylacetylene (CF/PAA).
      
The results show that the ILSS increases effectively and the effects on interfacial characterizations are distinguished from each other in accordance with the CF surface modified with different SSO coatings owing to the various structures.
      
AFM observations lead to the conclusion that an interfacial transition layer with different morphology and stiffness appears in CF/PAA composites after being treated by the SSO coatings of different structures.
      
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In this paper the as-cast microstructure, the rules of phase precipitation, the change of microstructure and minor phase content and the degeneration of aluminide coating after thermal exposure at temperature range from 850℃ to 1100℃ for 1000-3000 hours have been studied in comparison between two kinds of low chromium-high tungsten cast nickel-base superalloys.The experimental results have shown that these alloys have high structural stability, the alloys of normal composition did not precipitate TCP phase...

In this paper the as-cast microstructure, the rules of phase precipitation, the change of microstructure and minor phase content and the degeneration of aluminide coating after thermal exposure at temperature range from 850℃ to 1100℃ for 1000-3000 hours have been studied in comparison between two kinds of low chromium-high tungsten cast nickel-base superalloys.The experimental results have shown that these alloys have high structural stability, the alloys of normal composition did not precipitate TCP phase in all thermal exposure conditions and the total amount of minor phase in K002 and K19H after thermal exposure at 1050℃/1000 hr. only increased by 89%and 18% respectively. The following reactions have been proposed:Because the above reactions pick up residual carbon in γ-matrix, the formation of M6C and M23C6 is restricted.Besides, large quantity of niobium containing in MC carbide of K19H mates MC stabilize, therefore slows down the following reaction

本文对比地研究了两种低铬-高钨系列的铸造镍基高温合金的铸态显微组织,在850~1100℃范围内热暴露1000~3000小时后的相析出规律,显微组织和微量相的变化及铝化物涂层的蜕化。 试验结果表明这些合金具有高的组织稳定性,标准成份的合金在所有热暴露条件下不析出TCP相,经1050℃/1000小时后K002和K19H合金中微量相总量只分别增加了89%和18%。 提出了下列反应:由于上述反应夺取γ中残余的碳,抑制了M_6C和M_(23)C_6的形成。 此外,在K19H的MC碳化物中含有大量Nb使MC稳定,因此减缓了下列反应;

Some recent development and advancement in various areas of experimental mechanics in the USA, Western Europe and Japan are reviewed. In the area of commonly used techniques the new brittle coatings and the special strain gages for high temperature and cryogenic temperature applications are covered. In Photomechanics the Moire method, two-and three-dimensional photoelasticity, dynamic photoelasticity, orthotropic photo elasticity, holography, speckle pattern interferometry and the method of caustics are...

Some recent development and advancement in various areas of experimental mechanics in the USA, Western Europe and Japan are reviewed. In the area of commonly used techniques the new brittle coatings and the special strain gages for high temperature and cryogenic temperature applications are covered. In Photomechanics the Moire method, two-and three-dimensional photoelasticity, dynamic photoelasticity, orthotropic photo elasticity, holography, speckle pattern interferometry and the method of caustics are reviewed. In experimental fracture mechanics methods of fatigue damage detection, application of photoelasticity in fracture studies, applications of holography in fracture mechanics, application of acoustic-emission method, and ultrasonic wave techniques are discussed. Finally, applications of micro-computers in experimental mechanics are treated.

本文评述美国、西欧和日本近年来在实验力学几个主要领域所取得的进展.在常用的实验应力分析方法方面,列举了新的脆性涂层和用于高、低温场合的特殊应变计.在光力学方面,列举了云纹法,二维和三维光弹性,动态光弹性,各向异性光弹性,全息照相,散斑干涉和焦散线法.在实验断裂力学方面,报导了疲劳损伤检测方法,光弹性用于断裂研究,全息照相用于断裂力学,声发射技术的应用,以及超声波技术.最后谈到微型电子计算机在实验力学中的应用,是一重要的新发展,值得引起注意.

Objective.Using CZ method,the growing silicon monocrystals are always accompanied by increasing carbon.In this respect,the mechanism of carbon increasing has not been perfectly clarified and proved theoretically and experimentally so far,even though there are already some explanations.This article is written with the intention to discuss the carbon contamination mechanism based on experimental investigations about suppressing carbon contaminant and thcrmodynamic analysis so as to make an approach to the the...

Objective.Using CZ method,the growing silicon monocrystals are always accompanied by increasing carbon.In this respect,the mechanism of carbon increasing has not been perfectly clarified and proved theoretically and experimentally so far,even though there are already some explanations.This article is written with the intention to discuss the carbon contamination mechanism based on experimental investigations about suppressing carbon contaminant and thcrmodynamic analysis so as to make an approach to the the production of low-carbon monocrystal silicon.Thermodynamic analysis and experiments show that the carbon contained in silicon crystal comes mainly from CO due to the reaction between quartz crucible and its graphite suppotter and that between oxidative components in atmosphere (e.g.O2 and SiO etc) and graphite wares.Amounts of carbon contaminants in silicon crystal caused by these two reactions are about the same.Taking the form of CO,carbon comes into melted silicon.In test,surfaces of graphite ware were coated with SiC,Mo,ZrO2 or pyrolytic graphite and the quartz shield was replaced by a graphite one,thus providing 1~3×10-2 torr vacuum in furnace.As raw material,300g polysilicon was put into furnace for the growth of monocrystals by means of CZ method.Vacuum purity is considered as having great influence on carbon contamination and that higher vacuum provides the significant decrease in carbon content in silicon crystal.Average carbon content in the tail-ends of growing silicon crystal [C]=3×106cm-3,45% less than that by unimproved process.Tab.1 Results of unimproved test.[C]S1:carbon content in Si crystalSupporter,heater graphite Shield graphite-Mo.Tab.2 Test results.Coating: supporter-SiC,heater-pyrolytic graphiteShield-quartz-Mo.Tab.3 Test results.Coating: supporter-Mo,heater-pyrolytic graphiteShield-quartz-Mo.Tab.4 Test results.Coating: supporter and heater-ZrO2 Shield-quartz-Mo.Tab.5 Test results.Supporter coated with Mo,graphite heater and quartz-Mo shield.Schematic of crystal growth system Fig.1-pull rod; 2-graphite cover 3-quartz shield; 4-Mo shield; 5-heater coated with pyrolytic graphite or ZrO2; 6-quartz crucible; 7-supporter coated with Mo,SiC or ZrO25 8-crystal; 9-melted silicon.Fig.2 Sampling positions for measuring C content by means of infrad absorption

在真空下用CZ法生长硅单晶时,经热力学分折和实验研究证明,硅单晶中碳的主要来源除石墨托与石英坩埚间的反应生成CO外,气氛中氧化组元(O_2,SiO等)亦与石墨器件反应生成CO。碳以CO形式进入融硅,使硅单晶中碳含量增加。本研究采用了对石墨器件表面涂SiC、Mo、ZrO_2和热解石墨等方法,并用石英保温筒代替石墨保温筒。在真空度为1~3×10~(-2)托下,投料300g,用CZ法生长硅单晶,其晶体尾部的碳量平均值,比原工艺晶体中碳的平均含量降低了45%。

 
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