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| 1 | A Novel Melt Processing for Mg Matrix Composites Reinforced by Multiwalled Carbon Nanotubes显示文摘Carbon nanotubes(CNTs) reinforced Mg matrix composites were fabricated by a novel melt processing.The novel processing consisted of two courses:CNTs pre-dispersion and ultrasonic melt processing.Mechanical ball-milling was employed to pre-disperse CNTs on Zinc(Zn) flakes.Serious CNT entanglements were well dispersed to single CNT or tiny clusters on Zn flakes.The ultrasonic melt processing further dispersed CNTs in the Mg melt,especially tiny CNT clusters.Thus,a uniform dispersion of CNTs was achieved in the as-cast composites.Hot extrusion further improved the distribution of CNTs.CNTs increased both the strength and elongation of the matrix alloy.Notably,the elongation of the matrix alloy was enhanced by 40%.Grain refinement and the pulling-out of CNTs resulted in the evident improvement of ductility for the composites. | H.L.Shi X.J.Wang C.L.Zhang C.D.Li C.Ding K.Wu X.S.Hu | 2016 | Journal of Materials Science & Technology2016，32，12： | 3 |
| 2 | 查看详情显示文摘 | C.L.Zhang W.Q.Chen S.H.Xie J.S.Yang and J.Y.Li | | 0，，10： | 1 |
| 3 | 查看详情显示文摘 | M.Kenzelmann A.B.Harris S.Jonas C.Broholm J.Schefer S.B.Kim C.L.Zhang S.W.Cheong O.P.Vajk and J.W.Lynn | | 0，，08： | 1 |
| 4 | PD‐1 negatively regulates interleukin‐12 expression by limiting STAT‐1 phosphorylation in monocytes/macrophages duringchronic hepatitis C virus infection显示文摘 | Cheng J.Ma LeiNi YingZhang C.L.Zhang Xiao Y.Wu Antwan N.Atia PennyThayer Jonathan P.Moorman Zhi Q.Yao | 2011 | Immunology2011，，3： | 1 |
| 5 | MAGNETIC PROPERTIES AND STRUCTURES OF NANO-CRYSTALLINE Fe-P-C-Mo-Cu-Si ALLOYS显示文摘MAGNETICPROPERTIESANDSTRUCTURESOFNANO-CRYSTALLINEFe-P-C-Mo-Cu-SiALLOYS￥Y.F.Gao,J.Tan;G.D.Liu;C.L.Zhang;T.LiuandR.ZMa(RapidlyQ... | Y.F. Gao,J.Tan G.D. Liu C.L.Zhang T.Liuand R.Z Ma (Rapidly Quenched Materials Research and Development Centre, Central Iron & Steel Research Institute,Beijing 100081, China)(Metal Physics Department, University of Science and Technology Beijing, Beijin | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，5： | 0 |
| 6 | 金属硬掩膜打开工艺中的CD偏差负载控制显示文摘本文系统地研究了密集线条和孤立线条间CD(关键尺寸)刻蚀偏差参数对金属硬掩膜(MHM)刻蚀工艺的影响,涉及的范围有化学气体、源功率、压力、偏差功率以及ESC温度。特别是,如果正确地应用基于CH4的等离子固化光刻胶掩膜,发现它具有控制密集和ISO CD负载的特殊能力,且同时保持准确的密集CD。而且,在基于Cl2和基于HBr的BARC打开步骤之间,还看到刻蚀化学气体对CD负载的有重大影响。此外,也发现M-HM的应力和刻蚀后剖面影响CD负载性能。根据这些发现,成功地展示了改善钨触点和铜沟槽之间电气互连的解决方法。 | D.J.Wang M.D.Hu J.Q.Zhou C.L.Zhang H.Y.Zhang X.P.Wang | 2013 | 功能材料与器件学报2013，19，6： | 0 |
| 7 | Designing hetero-structured ultra-strong and ductile Zr-2.5Nb alloys:Utilizing the grain size-dependent martensite transformation during quenching显示文摘To further improve the service performance of Zr-2.5Nb alloy worked as pressure tubes in pressurized heavy water reactors,more investigation about the microstructure and thermomechanical processing route of Zr-2.5Nb alloy need to be conducted.In this work,a hetero-structured Zr-2.5Nb alloy was prepared by applying a novel technique.Microstructure analysis reveals that the alloy exhibits a grain sizedependent martensite substructure transition during post-rolling quenching.The hetero-structure consists of equiaxed primaryαgrains and the lamellae groups containing both parallelα’dislocation martensite andα’twin martensite.Compared with the previously reported Zr-Nb alloys,the present Zr-2.5Nb alloys manifest the highest yield strength(∼710 MPa),together with a high ultimate tensile strength(∼844 MPa)and good ductility(∼17.1%).The enhanced mechanical properties are found to arise from the properly controlled fraction/size of the two types of martensite,which not only significantly strengthens the alloy but also contributes to a stronger strain hardening.A model based on the grain-size-dependent critical resolved shear stress for dislocation slip and twinning has been proposed to explain theα’martensite substructures transition at a critical grain size dc=3.3μm.Below this size,the critical resolved shear stress(CRSS)for twinning is higher than that for theslip.Thus,theα’dislocation martensite is more favorable to form.Otherwise,theα’twin martensite would exhibit a high activity.The present work indicates that making use of the grain size-dependent martensite transformation to tailor the heterostructure in Zr alloys is an effective strategy to overcome the strength–ductility trade-off in the material. | S.Y.Liu J.Y.Zhang J.Kuang X.Y.Bao D.D.Zhang C.L.Zhang J.K.Yang G.Liu J.Sun | 2022 | Journal of Materials Science & Technology2022，，30： | 0 |
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