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216篇 您的检索式:作者名="LIPPOLD"
    题名 作者 年代 出处 被引量
1无磁钢20Mn23AlV保护渣液渣和渣圈性能变化对连铸的影响显示文摘对高铝无磁钢20Mn23AIV(/%:0.14~0.20C、21.50~25.00Mn、1.50~2.50Al、0.04~0.10V)200 mm板坯连铸过程结晶器保护渣液渣和渣圈的化学组成、理化性能和结晶矿相进行了对比分析。保护渣原渣组成为(/%):31.91CaO、30.30SiO_2、6.58Al_2O_3、1.12MgO、3.02MnO、7.73Na20、7.10F。结果表明,连铸开浇后15 min,液渣和渣圈中的SiO_2含量分别降低至22%和18%,Al_2O_3含量分别提高至20.5%和25.5%,其碱度由原渣的1.05分别提高至1.7和2.0。此时液渣及渣圈的熔化温度和粘度大幅度增加,转折温度大幅度降低;渣圈的化学成分及理化性能的变化幅度均大于液渣。连铸开浇15 min后液渣及渣圈的成分与性能均趋于稳定。高熔点相钙铝黄长石的析出是促使渣圈形成的重要原因。闫威 陈伟庆 Carsten Lippold 郑宏光 2013特殊钢2013,34,1:12
2Comparative characterization of two natural humic acids in the Pearl River Basin, China and their environmental implications显示文摘Two humic acids (HAs) were isolated from contaminated river sediments present under comparative conditions in the Pearl River Basin, China. YFHA (the HA extracted at an open pyrite mining area in Yunfu) exhibited a lower absorption intensity for certain bands in the Fourier transform infrared spectra, a lower E 4 /E 6 value (the UV absorbances at 465 nm (E 4 ) and 665 nm (E 6 )), a lower apparent molecular weight, a lower polarity and a lower oxygen functionality in comparison with GZHA (the HA isolated at an urban living area in Guangzhou). All these differences indicated a higher degree of humification of YFHA than GZHA. Overall, the enrichment patterns of permanent heavy metals in the studied HAs were similar to those in corresponding sediments. In particular, YFHA exhibited high enrichment of trace element Tl, a characteristic concomitant from the mining of the pyrite minerals. The adsorption isotherms of two HAs for goethite and pyrolusite, two representative geological materials, conformed to the Langmuir equation. Based on the qualitative relationships between the Langmuir constants of the adsorption isotherms and the chemical characteristics of HAs, the main mechanism of HA adsorption on these materials was suggested to be hydrophobic interaction. This study highlighted the promising use of HA as a peculiar bio-indicator of uncommon trace metal contaminations. The HA adsorption mechanism on representative geological materials further provided a theoretical basis for the study on the unusual metal behavior in complex environmental settings.Juan Liu Jin Wang Yongheng Chen Holger Lippold Johanna Lippmann-Pipke 2010Journal of Environmental Sciences2010,22,11:11
3德国公路设计标准中的新理念显示文摘该文介绍了德国目前正在重新构建的整个公路设计标准体系,该体系重点针对高速公路设计的新理念。基于车辆运动学推导的设计指标已不是研究的重点,而作为新体系的原则之一,强调了道路设计分类的使用,以期公路和城市道路具备自解释能力,从而正确地引导驾乘行为。除此之外,文中还对德国整套公路设计标准进行了综述。Brilon&Lippold 孙瑜(编译) 程建川(编译) 2007中外公路2007,27,1:10
4氧化钛对含钛不锈钢连铸保护渣性能的影响显示文摘针对含钛不锈钢连铸过程结晶器液渣层中TiO2含量明显增加的问题,以配制的含钛保护渣研究了TiO2对不同碱度保护渣的结晶温度、熔化温度、粘度和凝固温度的影响.结果表明,碱度为0.85时,4.5%的TiO2使渣的结晶温度降低,继续增加TiO2含量,结晶温度不再变化;碱度为1时,随TiO2含量增加,结晶温度先降低后升高,TiO2含量12%时,结晶温度显著升高主要是钙钛矿高温析出造成的.TiO2在0~12%范围增加时,提高了保护渣的熔化温度,降低了保护渣的粘度和凝固温度.郝占全 陈伟庆 Carsten Lippold 茅洪祥 2009过程工程学报2009,9,3:9
5不锈钢1Cr17板坯连铸过程中保护渣液渣层及渣膜的研究显示文摘在板坯连铸过程中取不锈钢1Cr17保护渣的液渣和渣膜试样,研究液渣成分和性能的变化,以及渣膜的性质。保护渣的主要成分(%)为:35.46CaO、32.84SiO_2、7.87Al_2O_3、3.04MnO、8.48Na_2O、7.13F、2.6C。结果表明,开浇后液渣中Al_2O_3、Cr_2O_3含量有一定增加,碱度稍有降低,但10 min后趋于稳定;液渣熔化温度和粘度相对于原始渣均有不同程度增加,凝固温度变化较小;保护渣变化后的熔化温度仍处于合理范围内,粘度值最多增加了0.08 Pa·s;保护渣渣膜由结晶层和玻璃层组成,渣膜结晶率约为71%,结晶矿相主要是枪晶石和少量霞石。郝占全 陈伟庆 Carsten Lippold 郑宏光 2009特殊钢2009,30,3:3
6结晶器保护渣吸收TiO_2夹杂物的动力学研究显示文摘碱度0.85、CaO-SiO_2-Al_2O_3-MgO-Na_2O-CaF_2为基本渣系,采用旋转动力学方法研究了TiO_2棒的旋转角速度(50~120)r/min,碱度(0.7~1.15),熔渣温度(1 300~1 480℃),TiO_2(0~12%),CaF_2(5%~15%)对保护渣吸收TiO_2速率的影响。结果表明,分别随温度升高,碱度增加,TiO_2含量降低和CaF_2含量增加,使TiO_2在渣中的溶解速率升高,其中温度和碱度的影响最显著。TiO_2溶解的限制性环节是扩散过程,溶解过程的活化能为130.9kJ/mol。郝占全 陈伟庆 Carsten Lippold Kim Kwang Seong 2009特殊钢2009,30,5:3
7Dissimilar friction welding of 6061-T6 aluminum and AISI 1018 steel: Properties and microstructural characterization显示文摘Emel Taban Jerry E. Gould John C. Lippold 2009Materials and Design2009,,5:2
8Simulating weld-fusion boundary microstructures in aluminum alloys显示文摘Anastasios D. Kostrivas John C. Lippold 2004JOM2004,,2:2
9Laser and electron beam welding of SiCp reinforced aluminum A-356 metal matrix composites显示文摘Lienert T J Brandon E D and Lippold J C 1993Scripta Metallurgica et Materialia1993,28,11:1
10Parameters controlling drug release from pellets coated with aqueous ethylcellulose dispersion 显示文摘LIPPOLD B H Sutter B K LIPPOLD B C 1989Int J Pharm1989,54,1:1
11A new oral erosion controlled drug delivery system with a late burst in the release profile 显示文摘Freichel OL Lippold BC 2000Europ J Pharm Biopharm2000,59,:1
12Sorption of Tl(I)onto geological materials:Influence of pH and humic matter显示文摘Liu J Lippold H Wang J 2011Chemosphere2011,82,6:1
13Characterization of the weld structure in a duplex stainless steel using color metallograpby 显示文摘Nelson DE Bneslack Ⅲ WA Lippold JC 1997Mater Charact1997,39,25:1
14Dissimilar friction welding of 6061-T6 aluminum and AISI steel: properties and microstructural characterization显示文摘Taban E Gould J E Lippold J C 2010Materials & Design2010,31,:1
15Conductivity type conversion of p-type CuInSe2 due to hydrogenation显示文摘Otte K Lippold G Hirsch D 2001Applied Surface Science2001,179,14:1
16Factors affecting lead,cadmium, and arsenic levels in house dust in a smelter town ineastern Germany 显示文摘Meyer I Heinrich J Lippold U 1999Environmental Research1999,81,1:1
17Sorption of thallium ( Ⅰ ) onto geological materials: influence of pH and humic matter 显示文摘LIU J LIPPOLD H WANG J 2011Chemosphere2011,82,6:1
18Solid dispersions of nimodipine and polyethylene glycol 2000:dissolution properties and physicochemical characterisation显示文摘Urbanetz N A Lippold B C 2005Eur J Pharm Biopharm2005,59,1:1
19An investigation of ductility dip cracking in nickle based weld metals partⅠ显示文摘Collins M G Ramirez A J Lippold J C 2003Welding Journal2003,82,10:1
20Zero-order drug release from hydrocolloid matrices 显示文摘Mockel JE Lippold BC 1993Pharm Res1993,10,7:1
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