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foam-filled tubes Fig. 2 Schematic layer arrangements and manufacture of FGFTs The relative density, as the ratio be the foam apparent density (ρf) to the base material density (ρs), is the main......
区力学性能[J]. 复合材料学报, 2015, 32(2): 534-541. ZHANG Wei, HOU Wen-bin, HU Ping. Mechanical properties of new negative Poisson's ratio crush box with cellular structure in plateau stage[J]. Acta Materiae......
that the exchange ratio, defined as R=[M2+]exchanged/ [Me2+]exchanged [53,54], is close to unity [34,85-87]. The activation of sphalerite in flotation has been well investigated and will be taken as an example......
. [129] HOWARD H P, CHENG J, VIANCO P T, LI J C M. Interface flow mechanism for tin whisker growth[J]. Acta Materialia, 2011, 59(5): 1957-1763. [130] CHUANG T H. Rapid whisker growth on the surface......
文章编号:1004-0609(2016)-08-1737-26 岩石裂纹扩展-破断规律及流变特征 曹 平,曹日红,赵延林,张 科,蒲成志,范文臣 (中南大学 资源与安全工程学院,长沙 410083) 摘 要:讨论岩石断裂力学研究近年来的若干进展,主要内容包括扩展机理,断裂准则,实验加载方式与裂纹定位方法,数值计算方法在岩石断裂力学研究中的应用.基于室内实验研究单轴加载下预制裂纹间的贯通模式与多裂纹试样的破坏模式,压剪复合作用下混合裂纹间的贯通类型与破碎规律.与此同时,针对岩石亚临界裂纹扩展问题进行相关讨论并给与实例分析.结果表明:处于同一应力水平时,水岩化学......
of water, from liquid to gas/steam, which enlarges the bitumen volume and therefore leads to lower binder viscosity. The organic additive, with melting point lower than bitumen, acts as flow improver......
sheets with good mechanical properties fabricated by a combination of strip casting and high-ratio differential speed rolling methods[J]. Metals and Materials International, 2015, 21(2): 374-381. [67... extruded Mg-Al-Ca-Mn alloys with high Ca/Al ratio[J]. Journal of Materials Science & Technology, 2018, 34(11): 2063-2068. [71] 张 勇, 白朴存, 崔晓明, 等. 含Ca镁合金表面微观腐蚀第一性原理研究[J]. 中国有色金属学报, 2019, 29(2......