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CCF300 as well as Toray T300 with nearly homogeneous structure have nearly equal tensile strengths, 3.31 and 3.35 GPa, respectively. Yet the tensile strength and strain rate of ST300 are lower, indicating that structure inhomogeneity in the transverse sections of PAN-carbon fibers have negative effect on the tensile strength. Carbon fiber with a more ordered surface than core region has lower......
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to the formation of the local metallurgical bonding between the Ti particles after heat treatment, the mean tensile strength increases to approximately 95.7 MPa. Key words: porous Ti; cold spraying; vacuum heat treatment; microstructure; tensile strength 冷喷涂是通过高速固态颗粒流依次与固态基体碰撞后,经过适当的变形牢固结合在基体表面而依次沉积形成沉积层的方法[1].通常,采用冷喷涂技术可以获得致密的Cu,Zn和Fe等涂层[2-4],但对于Ti[5-7, 9]或Ti合金[8-9]涂层,喷涂态涂层表现出一定的多孔性质.KARTHIKEYAN......
concrete is subjected to bi-directional tensile stress, its failure strength is basically unchanged regardless of stress ratio σ1/σ3. The biaxial tensile strength is close to the uniaxial tensile...; (7) For concrete columns without pre-damage, δ=0, and since the tensile strength ft of the concrete is related to the compressive strength fco, we......
Ultimate Strength Prediction of Carbon/Epoxy Tensile Specimens from Acoustic Emission DataV.Arumugam,R.Naren Shankar,B.T.N.Sridhar,A.Joseph StanleyDepartment of Aerospace Engineering,Madras Institute of Technology,Anna University摘 要:The objective of this paper was to predict the residual strength of post impacted carbon/epoxy composite laminates using......
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properties of alloys are consistent with the grain sizes. 0.26% (mass fraction) of CaC2 addition reduces the mean grain size of pure magnesium from more than 2 mm to 125 μm, and the ultimate tensile strength... suspension particulates has a significant influence on the strength properties of pure Mg. The tensile strength decreases with increasing CaC2 addition, and it consists of the change of grain size......
with the excess addition of Ca. The results also show that the ultimate tensile strength (UTS)and yield strength (YS) of the alloy with 1wt% Ca may rise by 28% and 25%, respectively,however, the elongation decreases. It is clarified that the adsorption of proper Ca on the grain boundaries refines α-Mg and improves the tensile properties, but the presence of excess Ca and stable Ca2Mg6Zn3phase......
and thermal conductivity by 5% and 15%, respectively, while the tensile strength is increased by 6% higher than Ag-Cu alloy. The anti-electric corrosion property is good, and there is no argent...Application of Lanthanum in High Strength and High Jin Xin1,Zhao Zhen1,Zhou Shijie2,Zhao Bingjun1 (1.Light-New Materials Science and Technology Co., Ltd., Chengdu 610066, China;2.College......
