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累积叠轧焊Al/Mg/Al多层复合材料的腐蚀行为 被引量:1
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作者 Ismail BENCHERIFA Khadidja ABIB +2 位作者 Khereddine ABDEL YAZID Baya ALILI Djamal BRADAI 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2024年第1期122-138,共17页
研究累积叠轧焊(ARB)Al1050/AZ31/Al1050多层复合材料的腐蚀行为,腐蚀介质为3.5%Na Cl(质量分数)溶液,分析测试手段包括动电位极化测试(PDP)、电化学阻抗谱(EIS)、扫描电子显微镜(SEM-EDS)、拉曼光谱和X射线衍射(XRD)等。为了深入研究Al... 研究累积叠轧焊(ARB)Al1050/AZ31/Al1050多层复合材料的腐蚀行为,腐蚀介质为3.5%Na Cl(质量分数)溶液,分析测试手段包括动电位极化测试(PDP)、电化学阻抗谱(EIS)、扫描电子显微镜(SEM-EDS)、拉曼光谱和X射线衍射(XRD)等。为了深入研究Al1050/AZ31/Al1050多层复合材料的耐腐蚀性和腐蚀产物,对ARB制备的Al1050/Al1050/Al1050多层复合材料进行了相似的测试作为对比。动电位极化曲线和电化学阻抗谱显示,ARB应变水平会显著影响腐蚀速率。与Al1050/Al1050/Al1050样品相比,Al1050/AZ31/Al1050多层复合材料具有更高的腐蚀速率和更低的极化电阻。AZ31层对腐蚀过程起主导作用。拉曼和XRD分析结果表明主要腐蚀产物为Mg(OH)2,且不含任何氯化合物(如(Mg(OH)_(2))·MgCl_(2))。 展开更多
关键词 累积叠轧焊 Al1050/AZ31/Al1050 多层复合材料 腐蚀 金属间化合物
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Simulink Behavioral Modeling of a 10-bit Pipelined ADC 被引量:1
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作者 Samir Barra Souhil Kouda +1 位作者 Abdelghani Dendouga N. E. Bouguechal 《International Journal of Automation and computing》 EI CSCD 2013年第2期134-142,共9页
The increasing architecture complexity of data converters makes it necessary to use behavioral models to simulate their electrical performance and to determine their relevant data features. For this purpose, a specifi... The increasing architecture complexity of data converters makes it necessary to use behavioral models to simulate their electrical performance and to determine their relevant data features. For this purpose, a specific data converter simulation environment has been developed which allows designers to perform time-domain behavioral simulations of pipelined analog to digital converters (ADCs). All the necessary blocks of this specific simulation environment have been implemented using the popular Matlab simulink environment. The purpose of this paper is to present the behavioral models of these blocks taking into account most of the pipelined ADC non-idealities, such as sampling jitter, noise, and operational amplifier parameters (white noise, finite DC gain, finite bandwidth, slew rate, and saturation voltages). Simulations, using a 10-bit pipelined ADC as a design example, show that in addition to the limits analysis and the electrical features extraction, designers can determine the specifications of the basic blocks in order to meet the given data converter requirements. 展开更多
关键词 Behavioral modeling analog to digital converters (ADCs) pipelined ADC multiple digital to analog converter (MDAC) sample and hold (S/H)
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