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金属学及金属工艺
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sintering bodies
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  烧结体
     The microstructure of materials made by forging 81 %TD, 85 %TD, 93 %TD and 98 %TD CPM10V sintering bodies has been observed with optical microscope after quenching and tempering. The hardness and bend strength of these heat treated materials has been measured.
     用金相显微镜观察了由相对密度为81%、85%、93%、98%的4种CPM10V烧结体热锻成的材料经淬火、回火后的组织,测量了这些材料经热处理后的硬度、抗弯强度。
短句来源
     The carbides in the materials made by forging 81 %TD and 85 %TD CPM10V sintering bodies are very fine and uniform in size and distribution, but the bend strength of the materials is very low.
     相对密度为81%、85%的烧结体的锻材,碳化物细小且尺寸和分布均匀,但抗弯强度较低;
短句来源
     In sintering bodies, cristobalite is the major phase. The addition of Al2O3 and B2O3 has a good influence on the formation of mullite, lowering of sintering temperature and enhancement of samples' strength.
     烧结体中方石英为主要晶相,Al_2O_3、B_2O_3的引入影响着莫来石相的生成,且有助于降低烧成温度,提高试样强度;
短句来源
     The addition of B2O3 has a bigger affection on property of sintering bodies than Al2O3. With increasing B2O3 content, more glass phase are appeared, which change dramatically the structure of the porosity and strength of the ceramic body. The same trend has been observed as respect to the variation of porosity and strength with increasing Al2O3 content, but the variation is more smoothly.
     B_2O_3的引入较Al_2O_3对烧结体的性能影响大,随B_2O_3含量增加,烧结体中玻璃相明显增多,显气孔率和抗压强度变化幅度较大,而随Al_2O_3含量增加,烧结体的显气孔率和抗压强度均呈缓慢变化趋势;
短句来源
     The results show that the forming pressure is the key factor to affect the shrinkage and the density of sintering bodies. The sintered bodies with shrinkage of 14% and relative density of 94% are obtained when the forming pressure is more than 600MPa.
     结果表明,成形压力是影响烧结体收缩率和致密度的重要因素,当成形压力≥600MPa,可以获得收缩率为14%、致密度为94%的烧结体
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  “sintering bodies”译为未确定词的双语例句
     The microstructure of vacuum sintering bodies of deoxidized water atomizing CPM10V prealloy powders at a series of temperature has been observed with optical microscope.
     观察了脱氧还原的水雾化CPM10V预合金粉末压坯在真空中不同温度烧结后的金相组织。
短句来源
     Several Si3N4 presintering bodies with different α phase content were prepared using hotpressing sintering and then were gaspressure annealed for 2 h at 1900 ℃.
     采用热压烧结方法制备了几种具有较高相对密度,不同α相含量的Si3N4预烧体,并在1900℃、09MPaN2压力中进行气压处理。
短句来源
     The porosity of porous bio-ceramic specimen was 70%~85%,microscopical pore size distribution between 0.3~0.6mm,microscopical pore size distribution at 1~3μm and the strength of porous bio-ceramic sintering bodies attained 0.85MPa.
     宏观孔径主要分布在0.3~0.6mm之间,微观孔径主要分布在1~3μm之间,抗压强度可达0.85MPa。
短句来源
     The optimal sintering temperature of 840 ℃ are obtained based on the microstructure and the properties of sintering bodies which contained w(TiO2)=2 % and w(ZrO2)=2 %. The material possessed excellent properties: εr = 7.1, tan δ = 3×10–3 at 10 MHz and coefficient of thermal expansion about 7.8×10–6℃–1 at 20 ~ 400 ℃.
     结合材料的烧结性能、介电性能和微观结构,以840℃烧成的添加w(TiO2)为2%、w(ZrO2)为2%的试样性能最佳,其εr为7.1、tanδ为3×10–3,在20~400℃之间的热膨胀系数为7.8×10–6℃–1。
短句来源
     Extra sol is removed by extruding and centrifugal method, which can raise uniformity of sol in polymer foam, and avoid efficiently the problem of cross-crack on the sintering bodies. Microwave is helpful to improve drying speed, which is useful to prepare even density and regular samples.
     通过挤压离心除去浸渍体中多余复合溶胶,能提高复合溶胶在聚氨酯泡沫中的均匀性,有效避免了烧结试样开裂的问题,微波干燥有利于提高干燥速率,制备密度均匀、规则的样品;
短句来源
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  相似匹配句对
     microwave sintering;
     微波低温干燥;
短句来源
     The porosity of sintering bodies is less and trans-granular fracture is the main.
     s的ZrB2-SiC复合浆料,此时烧结体的断面主要以穿晶断裂为主;
短句来源
     the microstructure of fracture surface of green bodies and sintering bodies were also studied.
     分析了凝胶注模成型后,排胶前复合材料素坯断面的显微结构以及相对应的烧结体的显微结构。
短句来源
     for protecting water bodies;
     论述了中水利用的必要性和可行性;
短句来源
     Sintering of Magnesium Aluminate
     MgAl_2O_4陶瓷材料的烧结研究
短句来源
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  sintering bodies
Using actively sintering bodies it is possible to make high-density magnesite-chromite products.
      
It was found that the optimal sintering temperature was 820°C based on the microstructure and the properties of sintering bodies, and then the major phases of the LTCC were CaSiO3, CaB2O4 and SiO2.
      
The resultant thermal conductivity is thought to be influenced by the sample size of sintering bodies because extracting oxygen from the aluminum nitride lattice in larger samples requires longer time resulting from a longer diffusion path.
      
In order to determine the constitutive equations for the sintering bodies, dilatometry and a new hot forging apparatus are used.
      


The mathematical relationship between the operational perfor mances (filtering precision and efficiency) of P/M filter materials and the properties of raw material powder(particle size and size distribution) and technological parameters(sintering temperature)is deduced mathematically and discussed on the base of experiments, when spherical powder is used as raw material for sintering loose powder materials, an equation can be set up to describe the relation between pore sizes in a freely stacking powder body...

The mathematical relationship between the operational perfor mances (filtering precision and efficiency) of P/M filter materials and the properties of raw material powder(particle size and size distribution) and technological parameters(sintering temperature)is deduced mathematically and discussed on the base of experiments, when spherical powder is used as raw material for sintering loose powder materials, an equation can be set up to describe the relation between pore sizes in a freely stacking powder body and the diameters of the particles. Hence, a function between the filtering precision of the filter and the particle size of the original powder can be deduced. The data obtained from sintering experiments and the structural analyses of sintering bodies can be treated by a microcomputer, and math-models dealing with filtering efficiency, particle size distribution and sintering temperature can be established. They can be used for the selection of original powder with suitable properties and the determination of the optimum sintering parameters in practical production. It will speed the research work, raise the productivity and improve the quality of the products. It has been proved successfully by auther′s research work and practical production. Under certain conditions, the math-models have been used in the manufactures of flame barrier and image plate materials, helping to choose the maximum pore diameter and critical fire-extinction diameter of the materials.

本文从理论推导和实验数据探讨了松装烧结过滤材料使用性能(过滤精度、过滤效率)与原料粉末粒度、粒度组成及烧结工艺参数(烧结温度)之间的数学关系。运用多项式回归方法和微机分析处理,建立了相应的数学模型。从而为合理选择原料粉末粒度和最佳烧结工艺参数以制取符合预定使用性能要求的过滤材料提供了理论和实验依据。在一定条件下,数学模型对制取粉末冶金多孔材料具有指导意义。

In this paper the structural properties and applications of polycarbosilane ( PCS ) have been studied in detail. SiC fiber has the advantage of the high strength in 1200℃ and is composited well with matrix, the β-SiC ceramic coating produced by PCS on the graphite materials gives the good oxidation resistance in high temperature, and PCS also has been found the important usage in the high temperature's adhesives for SiC sintering body, wave-absorption material and catalyst carrier.

合成了聚碳硅烷树脂,以该树脂为原料制备了SiC纤维。用电镜、红外光谱、X射线衍射、差热分析、热失重等方法对SiC纤维进行了研究,并对以聚碳硅烷树脂作为浸渍物质涂覆石墨进行了初步研究。

The liquid hot-pressing sintering behaviour of Si-SiC and Si-SiC-WC ceramics was studied. The results show that the increase of silicon (to 25 vol%) made ths sintering body densificated at a lower temperature; and by the occurrance of liquid silicon, the grain growth was restricted. Therefore, the strength of SiC article with 25 vol%Si was higher than that of with 5vol.% Si. The addition of some WC enhanced the densification and strengthened the Si-SiC ceramics.

研究了Si-SiC及Si-SiC-WC陶瓷的液相热压烧结性能。研究表明,在Si-SiC材料中,硅含量的增加(至25 vol.%)能够使烧结体在较低的热压温度下致密,并且硅液相的存在抑制了烧结体的晶粒长大,提高了碳化硅制品的强度。在Si-SiC中加入一定量的WC,能够提高烧结体的相对密度及抗弯强度。

 
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