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29篇 您的检索式:作者名="Kockelmann"
    题名 作者 年代 出处 被引量
1宋代铁钱的中子衍射研究显示文摘利用飞行时间法中子衍射技术(time of flight neutron diffraction)对3枚陕西出土的宋代铁钱进行了无损的相分析,采用英国卢瑟福实验室的高分辨率中子衍射仪GEM(General Materials Diffractometer),定量地揭示了铁钱的相组成、合金成分与主要锈蚀产物的成分。分析结果表明铁钱的主要物相为铁素体、渗碳体(还含有Fe3P),主要锈蚀产物为棕黄色针铁矿(α-FeOOH),没有发现铁素体晶粒的织构化,表明铁钱系铸造而成。中子衍射这种完全无损且量化的物理实验技术在中国文化遗产的科学分析与保护研究中具有广阔的应用前景。黄维 Winfried Kockelmann Evelyn Gordfrey David A Scott 吴小红 2010北京大学学报(自然科学版)2010,46,2:3
2Evaluation of different designs of wheel force transduc- ers (part III)显示文摘WEIBLEN W KOCKELMANN H BURKARD H 1999SAE Transactions1999,108,2:1
3Site Exchange in Hexagonal Ce(Ni,Cu)6 Intermetallics显示文摘Moze O Kockelmann W A Brück E 1998Materials Science Forum1998,,:1
4High-tech composites to ancient metals显示文摘ZHANG S Y GODFREY E KOCKELMANN W 2009Materials Today2009,,:1
5Revealing the residual stress distribution in laser welded Eurofer97 steel by neutron diffraction and Bragg edge imaging显示文摘Eurofer97 steel is a primary structural material for applications in fusion reactors. Laser welding is a promising technique to join Eurofer97 plasma-facing components and overcome remote handling and maintenance challenges. The interaction of the induced residual stress and the heterogeneous microstructure degrades the mechanical performance of such fusion components. The present study investigates the distribution of residual stress in as-welded and post-heat treated Eurofer97 joints. The mechanistic connections between microstructure, material properties, and residual stress are also studied. Neutron diffraction is used to study the through-thickness residual stress distribution in three directions,and neutron Bragg edge imaging(NBEI) is applied to study the residual strain in high spatial resolution.The microstructures and micro-hardness are characterised by electron backscatter diffraction and nanoindentation, respectively. The M-shaped residual stress distribution through the thickness of the as-welded weldment is observed by neutron diffraction line scans over a region of 1.41 × 10 mm^(2). These profiles are cross-validated over a larger area(∼56 × 40 mm^(2)) with the higher spatial resolution by NBEI. The micro-hardness value in the fusion zone of the as-welded sample almost doubles from 2.75 ± 0.09 GPa to 5.06 ± 0.29 GPa due to a combination of residual stress and cooling-induced martensite. Conventional post weld heat treatment(PWHT) is shown to release ∼90% of the residual stress but not fully restore the microstructure. By comparing its hardness with that of stress-free samples, it is found that the microstructure is the primary contribution to the hardening. This study provides insight into the prediction of structural integrity for critical structural components of fusion reactors.Bin Zhu Nathanael Leung Winfried Kockelmann Saurabh Kabra Andrew JLondon Michael Gorley Mark JWhiting Yiqiang Wang Tan Sui 2022Journal of Materials Science & Technology2022,,19:1
6Crystal structure and spiral magnetic ordering of BiFeO3 doped with manganese 显示文摘Sosnowska I Sch fer W Kockelmann W 2002Applied Physics A2002,74,10:1
7Crystal structure and spiral magnetic ordering of BiFeO3 doped with manganese显示文摘I. Sosnowska W. Sch?fer W. Kockelmann K.H. Andersen I.O. Troyanchuk 2002Applied Physics A Materials Science & Processing2002,,1:1
8Crystal structure and spiral magnetic ordering of BiFeO3 doped with manganese 显示文摘Sosnowska I Schafer W Kockelmann W 2002Appl Phys A Mater Sci Process2002,74,:1
9Cognitive outcomes in patients with chronic temporal lobe epilepsy显示文摘Helmstaedter C Kockelmann E 2006Epilepsia2006,47,2:1
10Neutron diffraction studies of the crystal and magentic structures of BiMnxFe1-xO3 Solid solutions显示文摘Sosnowska I Schafer W Kockelmann W 2006Appl Phys A Mater Sci Process2006,88,24:1
11Positive and negative psychotropic effects of levetiracetam显示文摘Helmstaedter C Fritz N E Kockelmann E 2008Epilepsy Behav2008,13,3:1
12Cognitive outcomes in patients with chronic temporal lobe epilepsy显示文摘Helmstaedter C Kockelmann E 2006Epilepsia2006,47,2:1
13Asbestos--Free Material for Gaskets for Bolted Flanged Connection显示文摘KOCKELMANN H BIREMBANT Y 1988Engineering1988,,11:1
14Crystal structure and magnetic properties of the off-stoichiometric compounds CeNi3Cu3 and CeNi4Cu2显示文摘Moze O Kockelmann W A Brück E 1998J Phys Condens Matter1998,10,:1
15Significant improve-ment in frontal lobe associated neuropsychological functions after withdrawal of Topiramate in epilepsy patients显示文摘Kockelmann E Elger CE Helmstaedter C 2003Epilepsy Res2003,54,2:1
16Cognitive profile of topiramate as compared with lamotrigine in epilepsy patients on antiepileptic drug polytherapy: relationships to blood serum levels and comedication 显示文摘Kockelmann E Elger CE Helmstaedter C 2004Epilepsy Behav2004,5,5:1
17Significant improvement in frontal lohe associated neuropsychological functions after with- drawal of Topiramate in epilepsy patients 显示文摘Kockelmann E Elger CE Helmslaedter C 2003Epilepsy Res2003,54,2:1
18Gasket character- istics for the design of bolted flange of metal-to-metal con- tact type显示文摘ROOS E KOCKELMANN H HAHN R International Journal of pressure Vessels and Piping0,79,1:1
19Orientational disorder in perovskite like structures of Li2X(OD)(X=Cl,Br)and LiBr·D2O显示文摘Eilbracht C Kockelmann W Hohlwein D 1997Physica B1997,234,:1
20Sn《,3》N《,4》,a tin(Ⅳ) nitride-Syntheses and the first crystal structure determination of a binary fin-nitrogen compound显示文摘 Kockelmann W Senker J 1999Zeitschrift fü r anorganische trod allgemeine Chemie1999,625,:1
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