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ceramics matrix composites
相关语句
  陶瓷基复合材料
     TiB_2 TiC Ceramics Matrix Composites Prepared by in situ Technique
     原位合成TiB_2-TiC陶瓷基复合材料
短句来源
     Intermetallics/Al_ 2 O_ 3 -TiC ceramics matrix composites by in-situ from ilmenite will be one of the present development.
     而以天然钛铁矿为原料,原位合成制备金属间化合物/Al2O3-TiC陶瓷基复合材料是I/CMC发展的趋势之一.
短句来源
     Ultrasonic Inspection of Small Defects in Ceramics and Ceramics Matrix Composites
     陶瓷及陶瓷基复合材料微缺陷的超声检测
短句来源
     Application Research of Ceramics Matrix Composites in Engine
     陶瓷基复合材料的研究现状及在发动机上的应用展望
短句来源
     The principle of in situ formation of TiB 2 TiC ceramics matrix composites was analyzed in this paper The TiB 2 TiC ceramics matrix composites of high performance were fabricated by hot pressing from TiH 2 B 4C The results show that the TiB 2 in microstructure presents long column morphologies which improve fracture toughness of the composite
     分析了 Ti B2 - Ti C陶瓷基复合材料的原位生成机理 ,利用普通的热压烧结设备 ,以 Ti H2 - B4C为原料原位合成了高性能的 Ti B2 - Ti C陶瓷基复合材料。 TEM和 X射线衍射的研究结果表明 :原位合成的复合材料中 Ti B2 为长柱状的显微形貌 ,从而提高了材料的断裂韧性
短句来源
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  “ceramics matrix composites”译为未确定词的双语例句
     We found that:At room temperature and elevated temperature, 3D-C/SiC composite has revealed a good fatigue resistance compared with other ceramics matrix composites. The fatigue limit (based on 106 cycles) for 3D- C/SiC is about above 88% of its ultimate tensile strength (UTS).
     试验表明,室温和高温下3D-C/SiC复合材料具有较高的抗疲劳性能,其疲劳极限约在拉伸强度的88%以上。
短句来源
     Silicon carbide (SiC) fiber is the important reinforcement material for fabrication of advanced composites especially ceramics matrix composites.
     摘 要碳化硅(SiC)纤维是研制金属基、陶瓷基以及聚合物基等先进复合材料的重要增强体。
  相似匹配句对
     Application Research of Ceramics Matrix Composites in Engine
     陶瓷基复合材料的研究现状及在发动机上的应用展望
短句来源
     MgLi Matrix Composites
     Mg-Li基复合材料
短句来源
     Review of Mechanical Properties of Ceramics Matrix Layered Composites
     陶瓷基层状复合材料力学性能发展现状
短句来源
     Ultrasonic Inspection of Small Defects in Ceramics and Ceramics Matrix Composites
     陶瓷及陶瓷基复合材料微缺陷的超声检测
短句来源
     Ceramics matrix composites thixofroming in pseudo-semi-solid state
     陶瓷基复合材料伪半固态触变成形
短句来源
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  ceramics matrix composites
Silicon carbide ceramics' matrix composites with SiC or C filaments were fabricated through hot pressing, and the effects of the filament pullout on their fracture toughness were experimentally investigated.
      


Fatigue life prediction on composite materials is studied analytically using degradation and damage models, resultant strain and fatigue modulus. Definition of fatigue modulus, new damage models using fatigue modulus and resultant strain, and prediction of fatigue life on composite materials using degradation and damage models are discussed. This approach can accurately predict the multi-stress level fatigue life as well as single-stress level fatigue life of composite materials. Defining fatigue damage on...

Fatigue life prediction on composite materials is studied analytically using degradation and damage models, resultant strain and fatigue modulus. Definition of fatigue modulus, new damage models using fatigue modulus and resultant strain, and prediction of fatigue life on composite materials using degradation and damage models are discussed. This approach can accurately predict the multi-stress level fatigue life as well as single-stress level fatigue life of composite materials. Defining fatigue damage on composite materials is not a simple problem. Common variables used to define damage of composite materials are secant modulus, residual strength, strain, compliance, amount of acoustic emission, crack density, crack length, and number of debonded or failed fibers. These damage models are tabulated in Table 1. However, variable can not be used universally to represent the degree of damage in various composite materials. Fatigue modulus is defined using secant modulus and resultant strain during fatigue cycle. Fatigue modulus represents the physical damage in composites with different orientation and materials., specially metal-matrix and ceramic-matrix composites for high temperature applications. Damage model , model and model are defined as functions of fatigue modulus and resultant strain. The structure of damage model, boundary conditions and physical meanings are inserted in order to interpret the proposed damage models. Also the effect of applied stress on the accumulated damage is studied analytically using proposed damage models. Fatigue life is predicted by the following procedures:(1) establish the fatigue modulus degradation, (2) find fatigue life equation as a function of fatigue modulus,(3) calculate the fatigue life using strain failure criterion. Degradation models for composite damage are generalized and found that three-parameter degradation model(dF/dn=ACn~c-1/ BF~B-1) and two-parameter power function model(dF/dn=-ACn~C-1) are most suitable to predic- ting fatigue life of composites. Also the predicted two-stress level fatigue life using the proposed da mape models are reasonably close to the experimental data.

在疲劳载荷作用下,复合材料的弹性模量会随着载荷循环数的增加而不断下降,而材料中的内部损伤则不断增大。为此,本文提出复合材料的疲劳模量和累积应变的概念,并由此定义出三种预测复合材料疲劳寿命的疲劳损伤模型。文中应用这三种模型对单应力水平和多应力水平下的玻璃纤维增强环氧树脂复合材料的疲劳寿命进行了估算,并同实验结果进行了比较。

The development and research status of ceramic matrix composites re reviewed an danalyse din this paper.The main topics includes the development process and application prospects of ceramic matrix composites, the research of fiber material, the toughening research of various ceramic matrix materials, the fabrication techniques, the toughening mechanisms and structure properties of ceramic matrix composites. Finally, some simple opinions on the further development of ceramic matrix...

The development and research status of ceramic matrix composites re reviewed an danalyse din this paper.The main topics includes the development process and application prospects of ceramic matrix composites, the research of fiber material, the toughening research of various ceramic matrix materials, the fabrication techniques, the toughening mechanisms and structure properties of ceramic matrix composites. Finally, some simple opinions on the further development of ceramic matrix composites are presented.

本文对陶瓷基复合材料的发展和研究情况进行综述分析。主要内容有:陶瓷基复合材料的发展和应用前景;纤维材料,多种陶瓷基体材料的韧化研究;陶瓷基复合材料的制备加工技术;陶瓷增韧的力学机理和材料结构性能的研究情况。最后还就陶瓷基复合材料的进一步发展提出一些粗浅的看法。

The studies of domestic and foreign specialists on ceramic matrix composites -were evaluated here;the reason of ceramic frangibility and its improved methods were presented;the reinforcing mechanism and the strength estimation theory of fibre reinforced ceramic composites were raised;the preparation methods of fibre reinforced ceramic materials were summarized.

本文评述了国内外学者在陶瓷基复合材料方面所做的工作,指出了陶瓷脆性的原因及改善途径,提出了纤维增强陶瓷复合材料的增强机理和强度估算理论,简要介绍了纤维增强陶瓷材料的制备方法。

 
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