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1Stable structure of Zr_(49)Cu_(44)Al_7 metallic glass matrix composite with CuZr phase under high pressure up to 40.8 GPa显示文摘Ternary Zr49Cu44Al7 metallic glass matrix composite rods with CuZr nano-phase,exhibiting an elastic strain of 1.6% and a high strength of 1.78 GPa,have been manufactured. The structural evaluation of the ternary metallic glass matrix composite under high pressure has been investigated using angle dispersive X-ray diffraction with a synchrotron radiation source. The investigation shows that the amorphous matrix structure is stable under pressures up to 40.8 GPa at room temperature. No pressure induced CuZr nano-phase disappearing or growing was detected. According to the Bridgeman equation of state,the bulk modulus B0 =115.2 GPa has been obtained.LI Gong LIU RiPing LI YanChun LIU Jing 2011Chinese Science Bulletin2011,56,4:1
2Preface显示文摘The second international workshop on the Statistical Physics and Mathematics for Complex Systems (SPMCS) was held in the Center for Complexity Science at Central China Normal University in Wuhan, China, from 23–27 October 2010; the first workshop, held in 2008 in Le Mans, France, was convened by the Laboratoire de Physique Statistique et Systèmes Complex-es of ISMANS, an engineering college in France. As announced in the Aims and Scope, this conference series is intended to bring together senior and junior scientists, as well as Ph.D. students, to present the state of the art, to exchange recent results, new ideas, and different points of viewWANG Qiuping Alexandre 2011Chinese Science Bulletin2011,56,34:0
3人工合成10mm优质塔状宝石级钻石及表征研究显示文摘利用国产六面顶压机,采用温度梯度法,以FeNi30高纯合金为触媒、高纯石墨为碳源、直径1.5 mm单晶作为晶种、高温高压合成8~12天,在一定温度梯度下人工合成10 mm优质塔状Ib宝石级钻石,并对其中的样品进行拉曼光谱和红外光谱测试并分析。研究发现:随着合成时间延长,人工合成塔状宝石级钻石的高度方向生长速度大于直径方向的增加速度,此种高塔状有利于提高宝石级钻石切割成品率。徐泽华 崔勇义 张鑫男 2022超硬材料工程2022,34,4:0
4Synthesis of boron-doped diamond with laser heated diamond anvil cell显示文摘Boron-doped diamond has been synthesized from graphite mixed with different ratio of B 4 C at high pressure high temperature (HPHT) using laser heated diamond anvil cell.The starting composition was transformed to diamond compound at pressure ~9 GPa,2300-2400 K as indicated by the in-situ X-ray diffraction pattern with synchrotron radiation source.Raman spectrum of the recovered specimen from HPHT state confirmed that boron has been doped into diamond lattice.ZHANG WeiWei CHEN LiangChen JIN ChangQing WANG XueJin LIU YuYing LIU Jing 2011Chinese Science Bulletin2011,56,13:0
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