材料期刊网

MICROSTRUCTURE AND PROPERTIES OF YBaCuO SUPERCONDUCTOR PREPARED BY MTG METHOD

TANG Hong , XIANYU Ze , HU Qianli , QIAO Guiwen , WANG Yongzhong , ZHUANG Yuzhi1 1) Institute of Metal Research , Chinese Academy of Sciences , Shenyang , China 2) Northeastern University , Shenyang , China Manuscript Received 7 March 1995

金属学报(英文版)

In this study, high-Tc YBaCuO superconductors with high Jc value were prepared using MTG(melting-textured growth) method. These superconductors with high density have Jc value in excess of 1.6×104 A/cm2 (77K, zero field) determined by using a d.c. standard four terminal method with the criterion of lμV/cm. The XRD and fractograph analysis revealed that the texture existed in whole MTG-processed YBaCuO sample which consists of the layered and plate-like grains of matrix phase YBa2Cu3Oy unidirectionally aligned along its (103) planes. The experimental results indicated that the connectivity between superconducting grains has been improved greatly and the weak-link problem has been overcome essentially.

关键词: : YBaCuO high-Tc superconductor , null , null , null

Bibliography of Science and Technology of Rare Earths Published in China(1995)

王立军

中国稀土学报

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Bibliography of Science and Technology of Rare Earths Published in China(1995)

周泰禧

中国稀土学报

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Bibliography of Science and Technology of Rare Earths Published in China(1995)

康德山 , 王学业 , 陈念贻

中国稀土学报

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Manuscript Requirements

新型炭材料

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March-Dollase函数在计算铜带择优取向上的应用

李英楠 , 李凤华 , 樊占国 , 李成山 , 卢亚锋

材料导报

根据XRD衍射图谱分析了Cu加工的择优取向行为,采用极密度相除的方法对March-Dollase函数求解过程进行了简化,使之可以直接根据XRD衍射图谱的若干峰值算出r值,间接计算择优取向的体积分数.把实测样品的XRD衍射花样与由Rietveld程序根据March-Dollase函数反推的XRD衍射花样进行对比,发现当r值小于0.45时两者符合良好,说明在此条件下(r<0.45)本数值计算方法对r值的计算准确可靠,能够估算择优取向体积分数.

关键词: 冷轧 , 再结晶 , March-Dollase函数 , 择优取向

钢管内涂标准SY/T 4078-1995应尽快修订

何浩 , 王献昉 , 金华

腐蚀与防护 doi:10.3969/j.issn.1005-748X.2004.09.012

石油天然气行业标准SY/T 4078-1995<钢质管道内涂层液体涂料补口机补口工艺>在适用范围、焊口表面处理、现场施工过程及焊口补口涂层检验等部分都有不妥之处.成功的工程实例表明:无溶剂环氧树脂作为管线内壁涂层的补口涂料是非常合适的,它可以使传统的补口工艺更加科学、合理.为保证钢管内壁涂层的整体质量应尽快予以修订该行业标准.

关键词: 石油天然气 , 行业标准 , 管线 , 无溶剂环氧树脂 , 涂层

Introduction to atmospheric corrosion research in China

Science and Technology of Advanced Materials

In this paper, we introduce the research on atmospheric corrosion in China. We describe the climate characteristics and the classification of atmospheric corrosivity across the whole country. We also describe the rusting evolution under simulated wet/dry cyclic conditions. (C) 2007 NIMS and Elsevier Ltd. All rights reserved.

关键词: atmospheric corrosion;corrosivity;rusting evolution;weathering steels;rust;mechanism;so2;o-3;no2

Recent Advances of Laser Coating Technology in China

LIANG Yong LI Ruiguo Institute of Metal Research , Academia Sinica , Shenyang 110015 , ChinaInstitute of Corrosion and Protection of Metals , Aademia Sinica , Shenyang , 110015 , China

材料科学技术（英文）

Recent advances in laser coating technology including laser cladding,laser surface alloying and laser vapour deposition in China are reviewed in this paper.

关键词: laser , null , null , null , null

Development of Cast Superalloys for Gas Turbines in China

CHEN Rongzhang CHEN Wanhua Institute of Aeronautic Materials , Beijing 100095 , China.

材料科学技术（英文）

As in other countries,significant achievements in the research of cast superalloys for many years have also been obtained in China.These results are important contribu- tion to the development of aero and land-based gas tur- bine engines.

关键词: cast superalloy , null