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45篇 您的检索式:作者名="Puchkov"
    题名 作者 年代 出处 被引量
1Al_2O_3-TiC/1Cr18Ni9Ti扩散焊接头应力分布显示文摘用有限元方法计算了Al2O3-TiC/1Cr18Ni9Ti扩散焊接头的应力分布,研究了加热温度、压力和中间层对应力分布的影响。结果表明,残余轴向应力和剪切应力在试样边缘处梯度都较大,靠近中心轴,应力分布比较均匀,最大剪切应力出现在Al2O3-TiC/中间层界面处。在扩散焊冷却过程中,Al2O3-TiC/1Cr18Ni9Ti扩散焊接头最大轴向拉应力先是出现在边缘陶瓷侧,随着温度的降低,逐渐向试样中心靠近,应力值也逐渐增大。加热温度越低,轴向压应力越大。压力越大,最大轴向拉应力越小,压应力越大,但压力对剪切应力的影响较小。使用Ti-Cu-Ti复合中间层比使用Ti中间层可降低最大轴向压应力和最大剪切应力。沈孝芹 李亚江 Puchkov UA 王娟 黄万群 2008焊接学报2008,29,10:7
2Super-Ni/NiCr叠层复合材料与18-8钢的焊接性显示文摘采用填丝钨极氩弧焊(TIG)方法对复层厚度仅0.3mm的叠层复合材料与18-8不锈钢进行焊接.通过显微图像分析仪、电子探针(EPMA)和X射线衍射仪(XRD)等对焊缝微观组织、显微硬度和熔合区附近相组成等进行分析.试验发现,焊缝边缘处的奥氏体晶粒生长具有方向性,呈柱状晶形态垂直于熔合区生长;叠层复合材料NiCr基层与焊缝形成可靠的熔合,Super-Ni复层与焊缝过渡区显微硬度升高;18-8钢侧焊缝显微硬度低于不锈钢母材.结果表明,焊接区主要是奥氏体、少量δ铁素体、γ-Ni(Cr,Fe),FeNi等物相;焊接中应使钨极氩弧偏向18-8钢一侧,以避免镍复层过度烧损.李亚江 夏春智 Puchkov U A 王娟 2010焊接学报2010,31,2:6
3Biostratigraphy versus isotope geochronology: Testing the Urals island arc model显示文摘Formation of the Urals volcanic-hosted massive sulphide(VHMS) deposits is considered to be related with the intra-oceanic stage of island arc(s) development in the Upper Ordoviciane Middle Devonian based on the biostratigraphic record of ore-hosting sedimentary rocks. However, the direct Re-Os dating of four known VHMS systems in the Urals gives significantly younger Re-Os isochron ages ranging from355 ± 15 Ma up to 366 ± 2 Ma. To address this discrepancy, we performed SHRIMP U-Pb dating on zircons extracted from rhyodacites(Eifelian biostratigraphic age of 393 -388 Ma) from the footwall of the Alexandrinka VHMS deposit which has a Re-Os isochron age of sulphides of 355 ± 15 Ma.New ^(206) Pb/^(238) U mean age of 374 ± 3 Ma(MSWD ? 1.4 and probability ? 0.11) is considered to be the crystallisation age of the host volcanic rock. This age is ca. 15 Ma younger than the Eifelian(393 -388 Ma)biostratigraphic age and overlaps the Frasniane Famennian boundary(372 ± 2 Ma), characterised by the final stages of Magnitogorsk Arc e East European continent collision. Such an inconsistency with geochronological age may be due to a reburial of conodonts during resedimentation as a result of erosion of older rocks in younger sedimentary sequences.Svetlana Tessalina Cristina Talavera Michael E.Pritchin Victor Puchkov 2019Geoscience Frontiers2019,10,1:2
4Spray freeze drying in a fluidized bed at normal and low Pressure 显示文摘Leuenberger H Plitzko M Puchkov M 2006Drying Technology2006,24,6:1
5Microstructure and phase constitution near the interface of Cu/Al vacuum brazing using Al-Si fillermetal显示文摘Xia Chunzhi Li Yajiang Puchkov U A 2008Vacuum2008,82,:1
6Sprayfreeze drying in a fluidized bed at normal low pressure显示文摘Leuenberger H Plitzko M Puchkov M 2006Drying Techn- oloyg2006,24,6:1
7Microstructure and phase constitution near the interface of Cui Al vacuum brazing using AI-Si filler metal 显示文摘XIA Chun-zhi LI Ya-jiang PUCHKOV U A GERASIMOV S A WANG Juan 2008Vacuum2008,82,:1
8Incipient metamorphism between Ufa and Beloretzk, western fold-and-thrust belt, southern Urals, Russia显示文摘I. Matenaar U. A. Glasmacher W. Pickel U. Giese V. N. Pazukhin V. I. Kozlov V. N. Puchkov L. Stroink R. Walter 1999Geologische Rundschau1999,,4:1
9Spray freeze drying in a fluidized bed at normal and low pressure显示文摘Leuenberger H Plitzko M Puchkov M 2006Drying Technology:An International Journal2006,24,6:1
10The my- cocidal, membrane-active complex of Cryptococcus humi- cola is a new type of cellobiose lipid with detergent fea- tures 显示文摘Puchkov E O Z? hringer U Lindner B 2002Biochimica et Biophysica Acta ( BBA)-Bi- omembranes2002,1558,2:1
11Microstructure and phase constitution near the interface of Cu/AI vacuum brazing using Al-Si filler metal 显示文摘Xia C Z Li Y J Puchkov U A 2008Vacuum2008,82,8:1
12Static Analysis Method for Detecting Buffer Overflow Vulnerabilities显示文摘Puchkov F M Shapehenko K A 2005Programming and Computer Software2005,3,4:1
13Contrasting provenance signals in Riphean and Vendian sandstones in the SW Urals(Russia): Constraints for a change from passive to active continental margin conditions in the Neoproterozoic显示文摘Willner A P Ermolaeva T Stroink L Glasmacher U A Giese U Puchkov V N Kozlov V I Walter R 2001Precamb Res2001,110,14:1
14Ordovician - Permian palaeogeography of Central Eurasia: development of Palaeozoic petroleum-heating basins显示文摘BYKADOROV V A BUSH V A FEDORENKO O A FILIPPOVA 1 B MILETENKO N V PUCHKOV V N SMIRNOV A V UZHKENOV B S VOLOZH Y A 2003Journal of Petroleum Geology2003,26,3:1
15Spray freeze drying in a fluidized bed at normal and low pressure显示文摘LEUENBERGER H PLITZKO M PUCHKOV M 2006Drying Technology2006,24,6:1
16Microstructure and phase constitution near the interface of Cu/Al vacuum brazing using Al-Si filler metal 显示文摘Xia C Z Li Y J Puchkov U A 2008Vacuum2008,82,8:1
17Microstructure and phase constitution near the interface of Cu/A1 vacuum brazing using AI-Si filler metal 显示文摘XIA C Z LI Y J PUCHKOV U A GERASIMOV S A WANG J 2008Vacuum2008,82,:1
18Cytoplasmic membrane of a sensitive yeast is a primary target for Cryp- tococcus humicola mycocidal compound (microcin) 显示文摘Puchkov E O Wiese A Seydel U 2001Biochimica et Biophysica Acta (BBA)-Biomembranes2001,1512,2:1
19Sprayfreeze drying in a fluidized bed at normal low pressure 显示文摘Leuenberger H Plitzko M Puchkov M 2006Drying Technology2006,24,6:1
20Spray-freeze Dr-ying in a Fluidized Bed at Normal and Low Pressure显示文摘Leuenberger H Plitzko M Puchkov M 2006Drying Technology2006,24,6:1
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