Contribution to clarify the adhesion mechanisms of cold gas dynamic sprayed coatings
有助于阐明冷气体动态喷涂涂层的附着机制
基本信息
- 批准号:211746431
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2012
- 资助国家:德国
- 起止时间:2011-12-31 至 2015-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The aim of the proposed project prosecution still is the clarification of the adhesion mecha-nisms of cold gas dynamic sprayed metallic coatings using aluminium coatings on ceramic substrates. This aim is backed by the increasing significance of cold gas dynamic sprayed metal/ceramic laminates and composites e.g. in energy and automotive applications. By ana-lysing the chemico-physical mechanisms on the interface between ceramic substrate and metallic coating, the basic model on adhesion mechanisms which results from the first project period will be extended.Hence, the formerly focused single- and polycrystalline Al2O3 substrates are complemented by Si3N4, SiC, MgF2 and AlN. This selection covers both technological relevance and signifi-cant differences concerning the chemical bonding conditions referred to the share of ionic bonding. The planned investigations now focus on the resulting influences of these different bonding conditions on the consequential mechanisms of the coating adhesion. To complete the parameter matrix, substrate temperature during coating, feedstock powder fraction and subsequent heat treatments are also varied, and their influence on the coating/substrate in-terface formation and the coating adhesion strength are evaluated. The adhesion and bonding conditions within the metal/ceramic interface are analysed and described using the methods of REM and TEM as well as XRD and EELS. An important tool to develop the exact coating adhesion model is the similar investigation of aluminium PVD coatings on the same substrate ceramics. The typical atom-by-atom PVD coating formation allows the formation of metal/ceramic interfaces without macro- and meso-type defects, like those that occur from spraying processes. Hence, the investigations of PVD coatings allow the description of interface defects resulting from lattice misfits between the substrate and the coating material. The gained results both add new insights to the PVD coating formation of metals on ceramics and help to correctly interpret findings from the CGS interface investigations.
拟议的项目起诉的目的仍然是澄清使用铝涂层在陶瓷基板上的冷气体动态喷涂金属涂层的粘附机制。这一目标得到了冷气动态喷涂金属/陶瓷层压板和复合材料日益重要的支持,例如在能源和汽车应用中。通过对陶瓷基材与金属涂层界面化学物理机理的分析,扩展了第一期项目建立的陶瓷基材与金属涂层结合机理的基本模型。因此,以前聚焦的单晶和多晶Al2O3衬底由Si3N4, SiC, MgF2和AlN补充。这一选择既涵盖了技术上的相关性,也涵盖了与离子键的份额有关的化学键条件的显著差异。计划的研究现在集中在这些不同的键合条件对相应的涂层粘附机制的影响上。为了完成参数矩阵,涂层过程中的基材温度、原料粉末含量和后续热处理也发生了变化,并评估了它们对涂层/基材界面形成和涂层粘附强度的影响。采用REM、TEM、XRD、EELS等方法分析和描述了金属/陶瓷界面内的粘附和键合条件。建立精确的涂层附着力模型的一个重要工具是对相同基材陶瓷上的铝PVD涂层进行类似的研究。典型的原子-原子PVD涂层形成允许形成金属/陶瓷界面,而没有宏观和介观型缺陷,如喷涂过程中出现的缺陷。因此,对PVD涂层的研究允许描述由衬底和涂层材料之间的晶格不匹配引起的界面缺陷。所获得的结果既为陶瓷上金属PVD涂层的形成提供了新的见解,也有助于正确解释CGS界面研究的结果。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Untersuchung der Haftmechanismen kaltgasgespritzter Al‐Schichten auf Al2O3
Al2O3 上冷气喷涂 Al 层粘附机制的研究
- DOI:10.1002/mawe.201400262
- 发表时间:2014
- 期刊:
- 影响因子:1.1
- 作者:R. Drehmann;T. Grund;T. Lampke;B. Wielage;K. Manygoats;T. Schucknecht;D. Rafaja
- 通讯作者:D. Rafaja
Splat Formation and Adhesion Mechanisms of Cold Gas-Sprayed Al Coatings on Al2O3 Substrates
- DOI:10.1007/s11666-013-9966-z
- 发表时间:2013
- 期刊:
- 影响因子:3.1
- 作者:R. Drehmann;T. Grund;T. Lampke;B. Wielage;K. Manygoats;T. Schucknecht;D. Rafaja
- 通讯作者:R. Drehmann;T. Grund;T. Lampke;B. Wielage;K. Manygoats;T. Schucknecht;D. Rafaja
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Professor Dr. David Rafaja其他文献
Professor Dr. David Rafaja的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Professor Dr. David Rafaja', 18)}}的其他基金
Mikrostrukturdefekte in elektrochemisch abgeschiedenen nanoskaligen Multilagenschichten und ihr Einfluss auf magnetische Eigenschaften
电化学沉积纳米多层薄膜的微观结构缺陷及其对磁性能的影响
- 批准号:
103462683 - 财政年份:2009
- 资助金额:
-- - 项目类别:
Research Grants
Ausbildung und thermische Stabilität von nanoskaligen Domänen in ausgewählten ternären und quaternären dünnen Schichten
选定的三元和四元薄膜中纳米级域的形成和热稳定性
- 批准号:
24166337 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Research Grants
Simultane elektrochemische und strukturelle in situ Untersuchungen der elektrolytischen Abscheidung am Beispiel von Blei und Blei-Zinn-Legierungen
以铅和铅锡合金为例的电解沉积的同时电化学和结构原位研究
- 批准号:
5438746 - 财政年份:2004
- 资助金额:
-- - 项目类别:
Research Grants
相似海外基金
Establishing a database using a health check-up system to clarify the risk factors for lifestyle diseases during the fetal period
利用健康体检系统建立数据库,明确胎儿期生活习惯病的危险因素
- 批准号:
23K10915 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
The clarify the mechanism of postoperative cognitive dysfunction
阐明术后认知功能障碍的机制
- 批准号:
23K08400 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
A study to clarify the effects of changes in local wind systems and fluctuations in coastal sea surface temperature on summer temperature and localized heavy rainfall in the Kanto Plain
研究阐明当地风系变化和沿海海面温度波动对关东平原夏季气温和局地强降雨的影响
- 批准号:
23K00979 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Efficacy prediction of novel treatments for chronic cough: Can we clarify the diversify of refractoriness?
慢性咳嗽新疗法的疗效预测:我们能否阐明难治性的多样性?
- 批准号:
23K07629 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Identify the essential host factors involved in HBV cccDNA formation and clarify its mechanism
鉴定参与 HBV cccDNA 形成的重要宿主因子并阐明其机制
- 批准号:
23K14531 - 财政年份:2023
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
To clarify the autoreactive T cells in Graves' Disease using single cell analysis
使用单细胞分析阐明格雷夫斯病中的自身反应性 T 细胞
- 批准号:
22K16417 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
Establishment of fecal DNA metabarcoding method to clarify mammalian diets
建立粪便 DNA 元条形码方法以阐明哺乳动物饮食
- 批准号:
22K05699 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Deep learning to clarify the mechanisms of atrial fibrillation
深度学习阐明心房颤动的机制
- 批准号:
22K08141 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
Clarify competencies of midwives involved in postpartum care
明确参与产后护理的助产士的能力
- 批准号:
22K11045 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (C)
High precision modeling for seabed rock mass and its application to clarify the mechanism of decollement formation
海底岩体高精度建模及其在阐明滑脱形成机制中的应用
- 批准号:
22H01587 - 财政年份:2022
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Scientific Research (B)