US Egypt Cooperative Research: Development of High Performance Nano-Sized Tungsten Heavy Alloy Composites by Powder Metallurgy
美埃合作研究:粉末冶金开发高性能纳米钨重合金复合材料
基本信息
- 批准号:0914424
- 负责人:
- 金额:$ 5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-09-01 至 2013-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This collaborative research project is being undertaken by Dr. Randall M. German, San Diego State University, and Dr. Sayed Farag Moustafa, Central Metallurgical Research and Development Institute of Egypt, on the topic of utilizing new nanoscale coating techniques to form copper coated nanoscale tungsten powders for low temperature net-shape sintering densification. Tungsten heavy alloys (WHAs) were developed in the 1930s for applications requiring high density and tailored thermal and electrical properties useful in electrical switching equipment, inertial guidance systems, and vibration dampening. Today, new applications are emerging in computer and microelectronic systems for heat dissipation, as well as in electro-discharge machining and aircraft stabilizers. Many WHA compositions rely on high tungsten contents and a matrix consisting of various iron, nickel, cobalt, and copper additions. Tungsten solubility in the matrix is historically required to induce liquid phase sintering densification. Concomitant with densification (at temperatures near 1500°C) is extensive grain growth. However, an alternative is to use an insoluble system, W-Cu, with a nano-sized particle to induce rapid, lower temperature sintering without grain coarsening. In this collaboration, a wide range of scientific and engineering applications will be explored, including microwave packaging, electrical contacts, integrated circuit heat sinks, welding electrodes, and plasma spray electrodes. The US partner will be responsible for sintering and coarsening studies on the novel powders fabricated by the Egyptian partner, who will also work on rationalization of the properties and applications. The project is funded under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to undertake cooperative research.
这项合作研究项目由Randall M.德国圣地亚哥州立大学教授和埃及中央冶金研究与发展研究所的Sayed Farag Moustafa博士就利用新的纳米包覆技术制备铜包覆纳米钨粉用于低温净成形烧结致密化的课题进行了讨论。高比重钨合金(WHA)是在20世纪30年代开发的,用于需要高密度和定制的热和电气性能的应用,可用于电气开关设备,惯性制导系统和振动阻尼。今天,新的应用正在出现在计算机和微电子系统的散热,以及在放电加工和飞机稳定器。许多WHA成分依赖于高钨含量和由各种铁、镍、钴和铜添加物组成的基质。钨在基体中的溶解度历来是诱导液相烧结致密化所必需的。伴随致密化(在接近1500°C的温度下)的是广泛的晶粒生长。然而,一种替代方法是使用具有纳米尺寸颗粒的不溶性体系W-Cu,以诱导快速、低温烧结而不使晶粒粗化。在这次合作中,将探索广泛的科学和工程应用,包括微波封装,电接触,集成电路散热器,焊接电极和等离子喷涂电极。美国合作伙伴将负责对埃及合作伙伴制造的新型粉末进行烧结和粗化研究,埃及合作伙伴还将致力于性能和应用的合理化。该项目由美国-埃及联合基金计划资助,该计划为两国的科学家和工程师提供赠款,以进行合作研究。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Randall German其他文献
Randall German的其他文献
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{{ truncateString('Randall German', 18)}}的其他基金
A Workshop for Scientific Issues on Medical Applications of Micro/Nano Powder Injection Molding-Molding, Sintering, Modeling, and Commercial Applications
微/纳米粉末注射成型医学应用科学问题研讨会——成型、烧结、建模和商业应用
- 批准号:
0738021 - 财政年份:2008
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
A Workshop for Scientific Issues on Medical Applications of Micro/Nano Powder Injection Molding-Molding, Sintering, Modeling, and Commercial Applications
微/纳米粉末注射成型医学应用科学问题研讨会——成型、烧结、建模和商业应用
- 批准号:
0913099 - 财政年份:2008
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
International Research Experience for Students (IRES)in Innovative Sintered Materials
创新烧结材料学生国际研究体验 (IRES)
- 批准号:
0525887 - 财政年份:2005
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
International Research Experience for Students (IRES)in Innovative Sintered Materials
创新烧结材料学生国际研究体验 (IRES)
- 批准号:
0603608 - 财政年份:2005
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Acquisition of Thermal Analysis Equipment for Engineering Materials
购置工程材料热分析设备
- 批准号:
9900172 - 财政年份:1999
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Process Specification for Powder Metallurgy Component Fabrication to Targeted Features and Quality: An Inverse Problem
粉末冶金部件制造达到目标特征和质量的工艺规范:反问题
- 批准号:
9813207 - 财政年份:1998
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
Equipment: Acquistion of Advanced Rheological System
设备:购置先进的流变系统
- 批准号:
9800237 - 财政年份:1998
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Component Shape Retention in Liquid Phase Sintering of Prealloyed Powders
预合金粉末液相烧结中的部件形状保持
- 批准号:
9610280 - 财政年份:1997
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Acquisition of Elemental Analysis Equipment for Engineering Materials
购置工程材料元素分析设备
- 批准号:
9622213 - 财政年份:1996
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Acquisition of a Three-Dimensional Microscopic Image Analysis Systems
三维显微图像分析系统的获取
- 批准号:
9500119 - 财政年份:1995
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
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