Aerosol Deposition Method: Co-deposition of functional materials and fillers to replace a subsequent thermal treatment

气溶胶沉积法:功能材料和填料的共沉积取代后续的热处理

基本信息

项目摘要

This project includes further fundamental investigations on the process of aerosol deposition of ceramic powders, also known as aerosol deposition method (ADM), that are based on more recent findings of the deposition mechanism. For example, reduced functional properties compared to bulk material (especially with regard to ionic or electronic conductivity) can be observed for all coatings produced by ADM directly after deposition. By means of a thermal post-treatment after the AD process, these properties can be permanently restored so that the properties of the films reach permanently the properties of the bulk material. The temperatures required for this improvement are significantly below the temperature required for grain growth. The reason for the poorer functional properties of AD coatings directly after coating is the process-related generation of mechanical micro-stresses during layer formation. This is the point at which the present application comes into play. The focus here is on reducing or completely avoiding thermal treatment that follows the AD process. This is to be made possible by adding chemically and electrically inert fillers (CaF2, PE/PP and Al2O3) to the functional materials (YSZ, STF). The filler material has the function of a mechanical buffer material, whereby a reduction of the layer-immanent micro-stresses is achieved. The exact influence of the filler material on the coating process is currently unclear. In order to qualitatively and quantitatively assess the correlation between the inert filler and the functional material on the properties of the layer, several filling materials and two functional materials are combined with each other. ADM is carried out as a co-deposition of powder mixtures. In addition, the mixing ratios of the corresponding powder mixtures are varied. With increasing addition of filler material, it is assumed that on the one hand film-immanent tensions can be reduced. On the other hand, however, dilution occurs and the functional properties of the coating, which are based on the functional material, are reduced. In order to achieve the highest possible proportion of functional material in the mixture, the construction of a gradient layer is an integral part of the last part of the project. Depending on the thickness of the coating, the proportion of functional material in the mixture is to be varied in order to create thick layers with minimal stresses and a high proportion of functional material.The investigations in the course of the project are intended to broaden the fundamental understanding of the layer formation process, whereby in future new, especially low melting point components combined with good functional properties can be bonded by means of aerosol deposition at room temperature.
This project includes further fundamental investigations on the process of aerosol deposition of ceramic powders, also known as aerosol deposition method (ADM), that are based on more recent findings of the deposition mechanism. For example, reduced functional properties compared to bulk material (especially with regard to ionic or electronic conductivity) can be observed for all coatings produced by ADM directly after deposition. By means of a thermal post-treatment after the AD process, these properties can be permanently restored so that the properties of the films reach permanently the properties of the bulk material. The temperatures required for this improvement are significantly below the temperature required for grain growth. The reason for the poorer functional properties of AD coatings directly after coating is the process-related generation of mechanical micro-stresses during layer formation. This is the point at which the present application comes into play. The focus here is on reducing or completely avoiding thermal treatment that follows the AD process. This is to be made possible by adding chemically and electrically inert fillers (CaF2, PE/PP and Al2O3) to the functional materials (YSZ, STF). The filler material has the function of a mechanical buffer material, whereby a reduction of the layer-immanent micro-stresses is achieved. The exact influence of the filler material on the coating process is currently unclear. In order to qualitatively and quantitatively assess the correlation between the inert filler and the functional material on the properties of the layer, several filling materials and two functional materials are combined with each other. ADM is carried out as a co-deposition of powder mixtures. In addition, the mixing ratios of the corresponding powder mixtures are varied. With increasing addition of filler material, it is assumed that on the one hand film-immanent tensions can be reduced. On the other hand, however, dilution occurs and the functional properties of the coating, which are based on the functional material, are reduced. In order to achieve the highest possible proportion of functional material in the mixture, the construction of a gradient layer is an integral part of the last part of the project. Depending on the thickness of the coating, the proportion of functional material in the mixture is to be varied in order to create thick layers with minimal stresses and a high proportion of functional material.The investigations in the course of the project are intended to broaden the fundamental understanding of the layer formation process, whereby in future new, especially low melting point components combined with good functional properties can be bonded by means of aerosol deposition at room temperature.

项目成果

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Professor Dr.-Ing. Ralf Moos其他文献

Professor Dr.-Ing. Ralf Moos的其他文献

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{{ truncateString('Professor Dr.-Ing. Ralf Moos', 18)}}的其他基金

Investigation of the deposition mechanism for the aerosol deposition of ceramics by evaluating of the processes that occur when micrometer-sized particles impact on surfaces
通过评估微米级颗粒撞击表面时发生的过程来研究陶瓷气溶胶沉积的沉积机制
  • 批准号:
    434829389
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Dynamic methods for electrochemical gas sensors (DynaSens)
电化学气体传感器的动态方法 (DynaSens)
  • 批准号:
    321264754
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
New Opportunities for the Aerosol Deposition Method by Substrate by Cryogenics
低温基底气溶胶沉积方法的新机遇
  • 批准号:
    388538917
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Correlation of the broadband electric and catalytic properties of zeolite based NH3/SCR catalyst materials
基于沸石的 NH3/SCR 催化剂材料的宽带电学性能和催化性能的相关性
  • 批准号:
    234930885
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Aerosol Deposition of Functional Oxide Ceramics: Exploratory Research for Modifying Microstructures
功能氧化物陶瓷的气溶胶沉积:微观结构改性的探索性研究
  • 批准号:
    237083654
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
BaFe1-xTaxO3-y - a material for temperature independent resistive oxygen sensors?
BaFe1-xTaxO3-y - 与温度无关的电阻式氧传感器的材料?
  • 批准号:
    245200377
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
2-Dimensional Ion Conducting Bismuth Vanadates for Electrochemical Devices
用于电化学器件的二维离子导电钒酸铋
  • 批准号:
    198685931
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Das integrierende Messverfahren - ein neuartiges Messprinzip für die Gassensorik
积分测量法——气体传感器的新测量原理
  • 批准号:
    197009584
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants
In-situ Investigation of Model Multi component Catalyst Systems
模型多组分催化剂系统的原位研究
  • 批准号:
    133181049
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Neuartiges Verfahren zur selektiven Entstickung von Kfz-Abgasen mittels Ionenleiter, NOx-speicherndem Werkstoff und poröser Diffusionsbarriere
使用离子导体、氮氧化物存储材料和多孔扩散屏障对车辆废气进行选择性脱硝的创新工艺
  • 批准号:
    5453764
  • 财政年份:
    2005
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似海外基金

Material Extrusion is the fundamental idea behind Fused Deposition Modeling, the most widespread Additive Manufacturing (AM) method
材料挤出是熔融沉积建模(最广泛使用的增材制造 (AM) 方法)背后的基本理念
  • 批准号:
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    2022
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Enhanced power conversion efficiency of perovskite solar cells with densification of crystal layer interface using vapor deposition method
利用气相沉积法致密化晶层界面提高钙钛矿太阳能电池的能量转换效率
  • 批准号:
    21K04970
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    2021
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Physical properties in the bulk and nano spaces for preparing metal-supported porous coordination polymers using supercritical fluid deposition method
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    2021
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Evaluation for re-emission and deposition processes of gaseous mercury in air-sea interfaces using a direct flux measurement method
采用直接通量测量法评估气态汞在海气界面的再排放和沉积过程
  • 批准号:
    21H04935
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    2021
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Construction of thin film deposition model in CVD / ALD method considering chemical reaction and interfacial flow phenomenon
考虑化学反应和界面流动现象的CVD/ALD法薄膜沉积模型构建
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    21H01243
  • 财政年份:
    2021
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Development of high nitrogen-containing and high-hardness ta-CNx film deposition method by directly injecting gas to the target
开发向靶材直接注入气体沉积高含氮高硬度ta-CNx薄膜的方法
  • 批准号:
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Development of discharge surface modification method and metal 3D deposition method using sliding arc plasma
开发使用滑动电弧等离子体的放电表面改性方法和金属3D沉积方法
  • 批准号:
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  • 财政年份:
    2020
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R&D on in vacuo molecular deposition method for facilitating EM specimen preparation with graphene sample carrier film
  • 批准号:
    20K05286
  • 财政年份:
    2020
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Development of Tooth Wear Repair and Progress Restraint Method using Er:YAG Laser Deposition Technique
使用 Er:YAG 激光沉积技术开发牙齿磨损修复和进展抑制方法
  • 批准号:
    19K10142
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Application of the Er:YAG-pulsed laser deposition method to the treatment of implant periodontitis
Er:YAG脉冲激光沉积法在种植牙周炎治疗中的应用
  • 批准号:
    19K10178
  • 财政年份:
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