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sic matrix
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  “sic matrix”译为未确定词的双语例句
     the properties of SiC matrix composites were improved with the increasinge of volume fraction of C_f,the SiC matrix composite with 15% C_f was found to have a fracture toughness of 4.42MPa·m~(1/2),bending strength of 149.6GPa,elastic modulus of 170.1 and microhardness(HV25) of 5191.
     随短纤维体积分数φ(Cf)在一定范围内增加,复合材料的性能有所上升,当φ(Cf)为15%时,该复合材料的断裂韧性、弯曲强度、弹性模量和显微硬度(HV25)分别为4.42 MPa. m1/2、170.1 MPa、149.6GPa和5191。
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     The δ 6 of Cf/SiC matrix composites made by using B 4C-Cf 1800°C is improved 10 5% and the KIC is improved 19 4%. At 1850°C, the δ b is improved 31 6% and the KIC is improved 5 8%.
     1 80 0°C热压时 B4C涂层 CF较未涂层 CF制得的 CF/Si C复合材料的 σb 值提高 1 0 .5%,KIC值提高 1 9.4 %,1 850°C热压时相应的 σb 值提高 3 1 .6%,KIC提高 5.8%。
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     Cracks are inevitably brought in matrix since the CTE mismatch between carbon fiber and SiC matrix during the manufacture of C/SiC composites. In this paper, the distribution of matrix cracks in 3D C/SiC composites with different thickness interphase is studied by x2 goodness of fittest, and it is showed that the matrix crack spacing between tows in 3D C/SiC composites obey normal distribution which is determined by the basketry of 3D composites.
     采用χ~2拟合优度检验方法对不同界面层厚度的3D C/SiC复合材料基体中裂纹分布进行了研究,结果表明,3D C/SiC复合材料纤维束间基体裂纹间距服从正态分布,而且这种分布是由3D复合材料的编织方式决定的。
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     The XRD analysis results show that pure and uniform SiC matrix can be formed when molar ratio of H 2/MTS (Methyl Trisilane) is between 2 and 5;
     XRD分析结果表明 ,当H2 /MTS摩尔比在 2~ 5之间时 ,可沉积出纯净均匀的碳化硅基体 ;
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     The results show that the introduction of short carbon fiber into the ZrB2-20%SiC matrix results in an apparent increase in fracture toughness from 2.0MPa·m1/2 to 6.56MPa·m1/2 and not evidently change in flexural strength from 502MPa to 445MPa and elastic modulus from 414GPa to 322GPa.
     m1/2提高到6.56MPa. m1/2,同时弯曲强度略有降低,从502MPa降至445MPa,弹性模量也有所降低,从414GPa降至322GPa。
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  相似匹配句对
     Fabrication of SiC Matrix Composite by CVI
     化学气相渗透法制备碳化硅陶瓷复合材料
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     CERAMIC MATRIX-SiC WHISKER COMPOSITES
     陶瓷基质—SiC晶须复合材料
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     Matrix Polymerization
     聚合新技术—模板(MatriX)聚合(Ⅰ)
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     -matrix are given.
     阵的特殊矩阵,给出了(?)
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  sic matrix
Subcritical crack growth measurements were conducted on ceramic matrix composites of β-SiC matrix reinforced with NICALON fibers (SiC/SiCf); fiber-matrix interphases were of carbon andboron nitride.
      
Characteristics of hot-pressed fiber-reinforced ceramics with SiC matrix
      
Nano surface-modification effect of Si-Ti-C-O fiber on tensile fracture behavior of woven fabric SiC matrix composites
      
High-temperature interlaminar shear strength of Hi-NicalonTM fiber-reinforced MI-SiC matrix composites with BN/SiC fiber coating
      
Notch sensitivity of two-dimensional woven SiC fibre-reinforced SiC matrix composite fabricated by the polymer conversion proces
      
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Cr metallization mechanism and joining technology of SiC-SiC and SiC-Cu are studied. According to thermodynamic calculation and considering that the physical-mechanical properties of Cr are similar to SiC, Cr was selected as an active metal.For the optimum joining process, SiC was metallized by Cr at 1000—1250℃ in vacuum, and then the SiC bodies were brazed.The bond strength was measured by means of four-point bending test; the average value is 103 MPa(RT), and the maximum...

Cr metallization mechanism and joining technology of SiC-SiC and SiC-Cu are studied. According to thermodynamic calculation and considering that the physical-mechanical properties of Cr are similar to SiC, Cr was selected as an active metal.For the optimum joining process, SiC was metallized by Cr at 1000—1250℃ in vacuum, and then the SiC bodies were brazed.The bond strength was measured by means of four-point bending test; the average value is 103 MPa(RT), and the maximum is 140 MPa.Structure of the joining surface was examined by SEM, metallograpy, AES and X-ray diffraction.lt is found that Cr has been diffused into the SiC matrix and a reaction layer exists on the intersurface, on which Cr_3C_2 is formed and at the same time Si escapes.The Cr_3C_2 formed is beneficial to the joining of SiC-SiC and SiC-Cu.

研究了碳化硅(SiC)陶瓷表面铬金属化机理及SiC-SiC和SiC-Cu的封接技术。SiC在1000—1250℃真空环境中表面铬金属化,然后利用铜基合金钎焊封接.8iC—SiC封接体的室温四点抗弯强度平均值为103MPa,最大值140MPa。 对接合界面结构的研究发现Cr扩散入SiC基体并在界面处存在着反应层Cr_3C_2,同时si逸失。在SiC与金属Cr之间形成Cr_3C_2,表明SiC的封接是可行的。

The effects of the thermo-physical properties of the CF and SiC matrix on the properties of C/SiC composites during the preparation of C/SiC compositesby the chemical change method of polycarbon silane are studied; a simple and effective method to increase the oxidation-resisting ability of composites is raised.

本文研究了聚碳硅烷化学转化法制备C/SiC复合材料过程中碳纤维(CF)、碳化硅(SiC)基体的热物理性能对C/SiC复合材料性能的影响,并提出了一种可以提高复合材料抗氧化能力的简单有效的方法。

The law and the behavior of the oxidation of SiC-matrix multiphase ceramics containing the non-oxide phase of TiC, TiB_2, ZrB_2and the oxide phase of Al_2O_3 respectively were studied. Their effect on bending strength of SiC-matrix multiphase ceramics was also studied. The experi- mental results indicate that the oxidation resistance of SiC-matrix multiphase ceramics containing the non-oxide phase decreases greatly, the disastrous rapid oxidation occurs at low temperature,...

The law and the behavior of the oxidation of SiC-matrix multiphase ceramics containing the non-oxide phase of TiC, TiB_2, ZrB_2and the oxide phase of Al_2O_3 respectively were studied. Their effect on bending strength of SiC-matrix multiphase ceramics was also studied. The experi- mental results indicate that the oxidation resistance of SiC-matrix multiphase ceramics containing the non-oxide phase decreases greatly, the disastrous rapid oxidation occurs at low temperature, which is related to the kinds of the non-oxide phase and not related to the amounts of the non-oxide phases, and the temperature at which strength decreases is 100~150℃ lower than that at which the disastrous oxidation occurs. The oxidation resistance of SiC-matrix multiphase ceramics containing the oxide phase of Al_2O_3 does not change significantly, the strength at high temperature does not decrease too. Degree of oxidation resistance for different SiC-matrix multiphase ceramics is of the following order:SiC-Al_2O_3>SiC-TiC>SiC-TiB_2>SiC-ZrB_2

本文系统地研究了引入第二相非氧化物粒子TiC,TiB_2,ZrB_2和氧化物粒子Al_2O_3后SiC基复相陶瓷的氧化行为和规律,以及它对SiC基复相陶瓷强度的影响。实验结果发现,引入第二相非氧化物粒子后SiC基复相陶瓷的抗氧化性能大大降低,会在较低的温度下发生灾难性快速氧化,出现灾难性氧化的温度与引入的第二相非氧化物粒子的种类有关而与添加量无关,在出现灾难性氧化前的100~150℃,强度会发生大幅度下降现象;引入第二相氧化物粒子Al_2O_3的SiC基复相陶瓷,其抗氧化性不发生踢显变化,高温强度也不出现大幅度降低的现象;各种SiC基复相陶瓷的抗氧化能力次序为:SiC-Al_2O_3>SiC-TiC>SiC-TiB_2>SiC-ZrB_2。

 
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