Local Atomic Arrangements in Alloys and Intermetallics
Local Atomic Arrangements in Alloys and Intermetallics
批准号:
8920567
负责人:
Jerome Cohen
金额:
$30.48万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1990
资助国家:
美国
项目状态:
已结题
起止时间:
1990-04-15 至 1993-03-31
中文摘要
这项研究的目的是检查本地原子 在几种金属合金系统中, 过渡状态。 均匀降水的早期阶段 在铝-铜-镁、铁-铍和 镍铍合金 镍铝沉淀 合金的研究,以更好地了解形成有序 沉淀物。 铁基马氏体的结构 淬火后正在确定;结构变化, 还进行回火。 在水银中的原子有序- 碲化镉是用同步加速器反常 分散技术 先进的X射线衍射方法是 用于表征合金的主要实验工具 系统. 先进的扩散X射线散射技术, 原子位移和相关分析是 research.
英文摘要
The purpose of this research is to examine local atomic order in several metallic alloy systems that display a metastable transitional state. Early stages of homogeneous precipitation is examined in aluminum-copper-magnesium, iron-beryllium and nickel-beryllium alloys. Precipitation from nickel-aluminum alloys is studied to better understand formation of ordered precipitates. The structure of ferrous martensites immediately following the quench is being determined; structural changes from tempering is also pursued. Local atomic order in mercury- cadmium-telluride is being determined using synchrotron anomalous dispersion techniques. Advanced X-ray diffraction methods are the primary experimental tool used to characterize the alloy systems. Advanced diffuse X-ray scattering techniques from atomic displacements and the associated analysis are part of the research.
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Development of APS Synchrotron Instrumentation
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批准号:9304725
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项目类别:Continuing Grant
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资助金额:$145.05万
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财政年份:1993
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负责人:Jerome Cohen
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依托单位:
Local Atomic Arrangements in Alloys and Intermetallics
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批准号:9224298
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项目类别:Continuing Grant
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资助金额:$30.99万
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财政年份:1993
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负责人:Jerome Cohen
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依托单位:
Acquisition of a General Purpose Diffraction System
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批准号:9100521
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项目类别:Standard Grant
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资助金额:$9.73万
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财政年份:1991
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负责人:Jerome Cohen
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依托单位:
Long & Medium Term Research: X-ray Analysis of Thin Film Materials Including Wear Resistant Coatings and SuperlatticeStructures
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批准号:9008064
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项目类别:Standard Grant
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资助金额:$3.73万
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财政年份:1990
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负责人:Jerome Cohen
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依托单位:
Local Atomic Arrangements in Alloys and Intermetallics
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批准号:8417961
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项目类别:Continuing Grant
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资助金额:$46.81万
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财政年份:1985
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负责人:Jerome Cohen
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依托单位:
Development of Technique For Measuring Diffuse X-Ray Scattering With Ultra-High Intensity Sources
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批准号:8208308
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项目类别:Standard Grant
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资助金额:$0.84万
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财政年份:1983
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负责人:Jerome Cohen
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依托单位:
Improvement of X-Ray Facilities
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批准号:8111732
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项目类别:Standard Grant
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资助金额:$7.8万
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财政年份:1981
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负责人:Jerome Cohen
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依托单位:
Local Atomic Arrangements in Alloys and Intermetallics (Materials Research)
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批准号:7923825
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项目类别:Continuing Grant
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资助金额:$39.7万
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财政年份:1980
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负责人:Jerome Cohen
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依托单位:
Acquisition of X-Ray Diffraction Equipment
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批准号:7924404
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项目类别:Standard Grant
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资助金额:$6.85万
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财政年份:1980
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负责人:Jerome Cohen
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依托单位:
Acquisition of X-Ray Facility Equipment
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批准号:7905908
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项目类别:Standard Grant
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资助金额:$2.8万
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财政年份:1979
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负责人:Jerome Cohen
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依托单位:
X-Ray Facility Equipment
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批准号:7808252
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项目类别:Standard Grant
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资助金额:$3.54万
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财政年份:1978
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负责人:Jerome Cohen
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依托单位:
Acquisition of a Surface Characterization Facility
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批准号:7711684
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项目类别:Standard Grant
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资助金额:$14.3万
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财政年份:1977
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负责人:Jerome Cohen
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依托单位:
Local Atomic Arrangements in Alloys and Intermetallics
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批准号:7680662
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项目类别:Continuing Grant
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资助金额:$21.89万
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财政年份:1977
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负责人:Jerome Cohen
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依托单位:
海外基金