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biodegradable metals, including Zn-Mg [34], AZ61 [35], Mg-Sr [36] 3.4 In vitro cytotoxicity Bone implants require good biocompatibility to ensure the safety of the host [42, 43]. The cytotoxicity of laser...]. Journal of Alloys and Compounds, 2020: 155397. DOI: https://doi.org/10.1016/j.jallcom.2020.155397. [36] GU X N, XIE X H, LI N, ZHENG Y F, QIN L. In vitro and in vivo studies on a Mg–Sr binary alloy......
: 339-345. [7] Gutiérrez-Menchaca, J, Torres-Torres, D, Garay-Tapia, A M. Microstructural, mechanical and thermodynamic study of the as-cast Zn-Al-Sr alloys at high Sr content [J]. Journal of Alloys......
研究的陶瓷材料来看,可能适用于高温热障涂层的陶瓷材料主要有氧化锆,氧化锆/氧化铝,氧化铝,氧化钇/氧化铈稳定的氧化锆,莫来石,锆酸镧,稀土氧化物,锆酸 锶,磷酸锆,硅酸锆,钛酸锆陶瓷等[7-10](见表1),其中氧化钇/氧化铈稳定的氧化锆整体性能为最好,仍是目前广泛应用的陶瓷热障涂层. 表1 可供热障涂层用陶瓷材料的优点和缺点 Table 1 Advantages......
)),其中Nd4Mg80Ni8展现出最优的储氢性能.计算结算结果显示,富Mg角的合金氢化后都将分解为NdH2,Mg和Mg2Ni,并据此提出了直接氢化单相Mg-RE-Ni中间合金制备REHx-Mg-Mg2Ni复合物的方法.这在Mg-Ni-Y体系中也得到验证[174],原位形成的YH2和NdH2晶粒尺寸都小于35 nm,并且弥散分布于Mg和Mg2Ni基体中.进一步使用通过3DAP和SR-PXRD原位分析金..., KAWAMURA Y, ABE E. A novel long-period stacking/order structure in Mg-Ni-Y alloys[J]. Journal of Alloys and Compounds, 2019, 788: 277-282. [73] 吴菊英, 单丽梅, 汤爱涛, 潘复生, 杨明波, 吴 璐. 含锶Mg-Al系镁合金中第二相研究述评[J]. 中国有色......
composite prepared via an in situ hydrothermal process[J]. Electrochimica Acta, 2010, 56(2): 693-699. [72] REDDY C V S, WALKER E H, SR. S A W, WILLIAMS Q L, KALLURU R R. Synthesis of VO2 nanorods for Li......
wheel, and then the specimens were mounted in epoxy resin to provide working areas of 10 mm × 20 mm. The composition (mass fraction) of the alloy is: 7.014% Si, 0.293% Mg, 0.011% Sr, 0.128% Ti, 0.005% Zn......
of the bacterial population (Sr) are eventually eliminated, while each healthier bacterium is asexually reproduced by splitting into two, which are then placed in the same location. Ultimately, the population...; (47) Sr is the number of least healthy bacteria that are discarded out of the population......
depended on the reaction temperature and alkalinity of the reaction system that evolve from irregular particles to 10 μm cubes. WANG et al [47] synthesized cube-shaped Sr-doped LaCrO3 crystalline... hydrothermal method to synthesize the precursor followed by heat treatment at 1000 °C for 10 h to obtain Sr-doped LaCrO3 nanoparticles, exhibiting smaller particle size about 100 nm and more uniform size......
演化的关系,并发现墨江金矿晚泥盆世热水沉积成岩成矿的岩石学和矿床学证据,获得四组Sm–Nd,Rb–Sr等时线年龄((354.7±0.72) Ma~(359±21) Ma),其定年结果对认识晚泥盆世火山–热水沉积作用与生物事件具有重要意义. 5) 特大型矿床的成矿偏在性理论 成矿偏在性是指成矿元素(矿种),成矿类型,成矿时代,成矿背景(环境)等均具十分明显的选择性,并受控于异常成矿构造聚敛场,特别......
J. Cent. South Univ. (2020) 27: 288-310 DOI: https://doi.org/10.1007/s11771-020-4296-z Order of sphalerite and galena precipitation: A case study from lead-zinc deposits in southwest China ZHANG Yan(张艳)1, HAN Run-sheng(韩润生)1, WEI Ping-tang(魏平堂)2 1. Kunming University of Science and Technology, Sou......