GOALI: Fundamental Investigation of the Synthesis, Characterization, and Performance of a NiAl Diffusion Coating Doped with a Reactive Element by Chemical Vapor Deposition

目标:通过化学气相沉积法掺杂反应性元素的 NiAl 扩散涂层的合成、表征和性能的基础研究

基本信息

  • 批准号:
    9801042
  • 负责人:
  • 金额:
    $ 28.24万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    1998
  • 资助国家:
    美国
  • 起止时间:
    1998-07-01 至 2002-06-30
  • 项目状态:
    已结题

项目摘要

9801042 Lee Thermal barrier coatings (TBCs) consist of a strain-tolerant ceramic layer and a metallic bond coat, which provides oxidation protection to metal alloys. The dominant failure mode observed in these material systems is the progressive fracture of the interface region between the bond coat surface and its oxide scale upon exposure to oxidation. One potent avenue for improving the scale adhesion at the bond coat surface is to incorporate one or more reactive elements, such as Hf or Zr, into a NiAl diffusion coating formed by aluminizing the surface of a Ni-based superalloy. This grant results from recent manufacturing advances in aluminizing by chemical vapor deposition (CVD). In contrast to the close-batch pack cementation and gas phase pack methods traditionally used for aluminizing, the dynamic nature of the open-flow CVD technique offers the promise of proactively controlling dopant concentration and distribution in the coating matrix. Previous studies with bulk alloys and intermetallics have shown that, in order for the beneficial effect to be operative, a reactive element must be present in a well-controlled level and distribution in the matrix material. Stevens Institute of Technology in collaboration with General Electric Aircraft Engines (GEAE) is exploring the synthesis, characterization, and performance issues associated with the CVD doping concept. This is accomplished under the NSF-GOALI concept, which is ideal for long-term exploration by collaborative university- industry research activities. This research project effectively integrates Stevens' strengths in conducting kinetic experiments, coating characterization, and mathematical modeling with GEAE's expertise as a leading aircraft engine manufacturer with unique characterization and test facilities. The Division of Materials Research and the MPS Office of Multidisciplinary Activities jointly fund this grant. %%% Extending the surface functionality of advanced metallic and ceramic materials has been a vital area of research and development for high temperature structural applications. Currently a strong technological need exists to improve the performance of "traditional" structural materials, such as Ni-based superalloys, via surface coating and modification approaches. ***
热障涂层(tbc)由耐应变陶瓷层和金属结合层组成,为金属合金提供氧化保护。在这些材料系统中观察到的主要失效模式是暴露于氧化后粘结层表面与其氧化层之间的界面区域的渐进式断裂。在镍基高温合金表面镀铝形成的NiAl扩散涂层中加入一种或多种活性元素,如Hf或Zr,是改善涂层表面结垢附着力的一种有效途径。这项拨款源于最近化学气相沉积(CVD)镀铝技术的制造进展。与传统上用于渗铝的密批填充胶结和气相填充方法相比,开放流CVD技术的动态特性提供了主动控制涂层基质中掺杂剂浓度和分布的希望。先前对大块合金和金属间化合物的研究表明,为了使有益效果发挥作用,活性元素必须在基体材料中以良好控制的水平和分布存在。史蒂文斯理工学院与通用电气飞机发动机公司(GEAE)合作,正在探索与CVD掺杂概念相关的合成、表征和性能问题。这是在NSF-GOALI概念下完成的,这是理想的大学-工业合作研究活动的长期探索。该研究项目有效地将史蒂文斯在进行动力学实验、涂层表征和数学建模方面的优势与GEAE作为领先的飞机发动机制造商的专业知识结合起来,拥有独特的表征和测试设施。材料研究司和MPS多学科活动办公室共同资助这项资助。扩展先进金属和陶瓷材料的表面功能已经成为高温结构应用研究和开发的重要领域。目前,迫切需要通过表面涂层和改性方法来改善“传统”结构材料(如镍基高温合金)的性能。***

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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Woo Lee其他文献

Radiologic Diagnosis of Osteoid Osteoma: From Simple to Challenging
骨样骨瘤的放射学诊断:从简单到具有挑战性
  • DOI:
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    J. Chai;Hwan Hong;Woo Lee;Heung Sik Kang
  • 通讯作者:
    Heung Sik Kang
Reaction of a Molybdenum Bis(dinitrogen) Complex with Carbon Dioxide: A Combined Experimental and Computational Investigation.
钼双(二氮)配合物与二氧化碳的反应:实验和计算相结合的研究。
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    4.6
  • 作者:
    Raja Pal;Suyeon Kim;Woo Lee;Matthew R Mena;Afshan Khurshid;C. Ghosh;T. Groy;A. Chizmeshya;M. Baik;Ryan J. Trovitch
  • 通讯作者:
    Ryan J. Trovitch
Origins of domain wall pinning in ferroelectric nanocapacitors
  • DOI:
    10.1186/s40580-014-0024-4
  • 发表时间:
    2014-09-12
  • 期刊:
  • 影响因子:
    11.000
  • 作者:
    Yunseok Kim;Hee Han;Ionela Vrejoiu;Woo Lee;Dietrich Hesse;Marin Alexe
  • 通讯作者:
    Marin Alexe
B-SITを用いたSEPP共振形誘導過熱用高周波インバータの特性評価
使用 B-SIT 的 SEPP 谐振感应加热高频逆变器特性评估
Adsorption on ordered and disordered duplex layers of porous anodic alumina.
多孔阳极氧化铝的有序和无序双相层上的吸附。

Woo Lee的其他文献

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{{ truncateString('Woo Lee', 18)}}的其他基金

Biomimetic Assembly of Microphysiological Lacunocanalicular Network
微生理腔隙小管网络的仿生组装
  • 批准号:
    1409779
  • 财政年份:
    2014
  • 资助金额:
    $ 28.24万
  • 项目类别:
    Continuing Grant
Evaporative Assembly of Drug-Eluting Bioresorbable Nanocomposite Micropatterns
药物洗脱生物可吸收纳米复合材料微图案的蒸发组装
  • 批准号:
    1005902
  • 财政年份:
    2010
  • 资助金额:
    $ 28.24万
  • 项目类别:
    Continuing Grant
GOALI: Multilayered Oxide Fiber Coating Concept for Environmentally Durable SiC/SiC Composites
GOALI:用于环保型 SiC/SiC 复合材料的多层氧化物纤维涂层概念
  • 批准号:
    9971623
  • 财政年份:
    1999
  • 资助金额:
    $ 28.24万
  • 项目类别:
    Continuing Grant

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