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Recent Patents on Materials Science最新文献

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How can we Distinguish Quasicrystals from other Phases in Al-based Cast Alloys Containing Mn, Mg, Si, Be, Cu, Ce, Fe and Ti? 在含Mn, Mg, Si, Be, Cu, Ce, Fe和Ti的al基铸造合金中,我们如何区分准晶与其他相?
Pub Date : 2015-05-01 DOI: 10.2174/1874464808666150415225050
B. Markoli, T. Bončina, F. Zupanič
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引用次数: 1
A novel two-step spin-coating process for preparing PEDOT/PSS thin films and review of recent advances in spin coating 制备PEDOT/PSS薄膜的两步旋涂新工艺及最新进展综述
Pub Date : 2015-05-01 DOI: 10.2174/1874464808666150310233622
Wen-zhen Cheng, Jin-xia Liu, Yin-Ang Mei, Ping Zhang, T. Omi, Yuki Takigami, Ke Zhang, H. Okuzaki, Hu Yan
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引用次数: 4
Complex Metallic Alloys for Applications in Magnetic Refrigeration 复合金属合金在磁制冷中的应用
Pub Date : 2015-05-01 DOI: 10.2174/1874464808666150427223327
B. Podmiljšak, P. Mcguiness, S. Kobe
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引用次数: 1
Editorial (Thematic Issue: The Usefulness of Complex Metallic Alloys: Secured Breakthroughs and Applications on the Market) 社论(专题:复杂金属合金的用途:取得突破和在市场上的应用)
Pub Date : 2015-05-01 DOI: 10.2174/187446480802150512194957
J. Dubois
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引用次数: 1
Method for Storing Digital Information and Storage Element: A Thermal Memory Cell 数字信息存储方法及存储元件:热存储单元
Pub Date : 2015-05-01 DOI: 10.2174/1874464808666150415001749
J. Dolinšek
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引用次数: 0
Liquid and Solid Precursor Delivery Systems in Gas Phase Processes 气相过程中的液体和固体前驱体输送系统
Pub Date : 2015-05-01 DOI: 10.2174/1874464808666150324230711
C. Vahlas, B. Caussat, W. Gladfelter, F. Senocq, Elizabeth J. Gladfelter
Due to attractive surface properties and to intrinsic brittleness of Complex Metallic Alloys (CMAs), most of their potential applications involve materials with high surface-to-volume ratios, including thin films and coatings. While physical vapor deposition techniques are efficient for the processing of CMA films on line-of-sight surfaces, chemical vapor deposition (CVD) is well positioned for their application on complex surfaces. However, for CVD process to be implemented efficiently in the processing of CMA films a number of challenges must be addressed. Because numerous CVD reagents, commonly called precursors, are low vapor pressure liquids or solids, one of these challenges is the production of vapors of such precursors, which are decomposed in the deposition chamber to provide the desired film. Such a production has to be ensured at high rate and must be reproducible and stable during the whole process. Actual solutions to this question involve (i) bubbling inert gas through thermally regulated liquid precursors, (ii) leaching the surface of fixed precursor powder beds, and (iii) in situ generating the precursor flow by passing a reactive gas through a thermally regulated bed of the metallic element to be transported. Such solutions neither may be satisfactory for actual R&D needs nor may be transferable to industrial environments. These reasons are in part responsible for the limited implementation of advanced materials (including CMA-based ones) in numerous industrial and hence societal needs. More recently, innovative solutions have been proposed to feed deposition systems based on vapor phase chemical techniques (CVD and Atomic Layer Deposition, ALD). Such solutions are Direct Liquid Injection (DLI) of dissolved solid precursors and also sublimation of the latter in fluidized beds or in elaborated fixed beds. Such technological responses show promise for industrial applications of CVD, especially for the deposition of metals and ceramic compounds for which the available molecular and inorganic precursors present low vapor pressures. This review provides an overview of the methods by which precursor vapors are transported to the deposition chamber. Early and recent patents dedicated to such technologies will be revisited and considered in the light of the deposition of multimetallic alloy coatings.
由于复杂金属合金(CMAs)具有吸引人的表面特性和固有的脆性,它们的大多数潜在应用涉及具有高表面体积比的材料,包括薄膜和涂层。虽然物理气相沉积技术对于在视线表面上加工CMA薄膜是有效的,但化学气相沉积(CVD)在复杂表面上的应用是很好的。然而,为了使CVD工艺有效地应用于CMA薄膜的加工,必须解决许多挑战。由于许多CVD试剂(通常称为前驱体)是低蒸汽压液体或固体,因此这些挑战之一是产生这些前驱体的蒸汽,这些前驱体在沉积室中分解以提供所需的薄膜。这样的生产必须保证高速率,并且在整个过程中必须是可复制的和稳定的。这个问题的实际解决方案包括:(i)通过热调节的液体前驱体鼓泡惰性气体,(ii)浸出固定前驱体粉末床的表面,以及(iii)通过反应气体通过待输送金属元素的热调节床,在现场产生前驱体流。这样的解决方案既不能满足实际的研发需求,也不能转移到工业环境中。这些原因在一定程度上导致了先进材料(包括基于cma的材料)在众多工业和社会需求中的有限实施。最近,基于气相化学技术(CVD和原子层沉积,ALD)的进料沉积系统提出了创新的解决方案。这些溶液是溶解的固体前体的直接液体注射(DLI),以及后者在流化床或精心制作的固定床中的升华。这种技术反应显示了CVD的工业应用前景,特别是对于金属和陶瓷化合物的沉积,可用的分子和无机前体呈现低蒸汽压。这篇综述概述了前体蒸汽被输送到沉积室的方法。早期和最近的专利致力于这些技术将被重新审视,并考虑到多金属合金涂层的沉积。
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引用次数: 12
Bipolar Plate Materials for Proton Exchange Membrane Fuel Cell Application 质子交换膜燃料电池双极板材料的应用
Pub Date : 2015-03-28 DOI: 10.2174/1874464808666150306223104
R. Gautam, Soma Banerjee, K. Kar
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引用次数: 26
Bio-Inspired Design of Lightweight Metal Structure Based on Microstructure of Fully Ripe Loofah 基于熟透丝瓜微观结构的轻质金属结构仿生设计
Pub Date : 2015-03-28 DOI: 10.2174/1874464808666150105233832
Yong Lei, Hui Wang, Q. Qin
It is well known that a naturally matured loofah has some distinct inherent properties including extremely low density and high absorbability, due to its unique fibrous microstructure and macro-cellular architecture including the spatial configuration of voids and solids. In this paper, we focus on patents and literature related to the development of a three-dimensional (3D) lightweight metallic structure by means of a design bio-inspired by the cellular architecture of a fully ripe loofah. To simplify the design, the cellular architecture of the loofah is assumed to be a two-layered open-cell foam structure, and each layer is a porous shell wall. The two layers are connected by three porous radial plates. With this simplification, a lightweight metallic structure with hexagonal pores is developed that achieves the desired balance of weight and mechanical properties. The resulting metallic structure has low density (190.39 kilograms per cubic meter) and the Young’s modulus is estimated by compressive testing using a finite element technique.
众所周知,自然成熟的丝瓜络具有一些独特的固有特性,包括极低的密度和高的吸收性,这是由于其独特的纤维微观结构和宏观细胞结构,包括空隙和固体的空间配置。在本文中,我们重点介绍了与三维(3D)轻质金属结构开发相关的专利和文献,该结构的设计灵感来自于完全成熟的丝瓜的细胞结构。为简化设计,假设丝瓜络的细胞结构为两层开孔泡沫结构,每层为多孔壳壁。这两层由三个多孔径向板连接。通过这种简化,开发了具有六边形孔的轻质金属结构,实现了重量和机械性能的理想平衡。所得到的金属结构具有低密度(每立方米190.39千克),并且杨氏模量是通过使用有限元技术进行压缩测试来估计的。
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引用次数: 2
Advances and Recent Patents in the Field of Grinding Temperature Measurement Methods 磨削温度测量方法研究进展及最新专利
Pub Date : 2015-03-28 DOI: 10.2174/1874464808666150304233653
Yaogang Wang, Changhe Li, Benkai Li, Min Yang, Xiaowei Zhang
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引用次数: 8
Development and Application of Materials of Cutting Tools for Machining of Hard Materials 硬材料切削刀具材料的开发与应用
Pub Date : 2015-03-28 DOI: 10.2174/1874464808666150203003126
C. Yue, Huize Feng, Z. Zhong, Haitao Zhang
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引用次数: 2
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Recent Patents on Materials Science
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