Function-dependent coating architectures by hybrid powder-suspension plasma spraying: Injector design, processing and concept validation

被引：44
作者：
Bjorklund, Stefan [1 ]
Goel, Sneha [1 ]
Joshi, Shrikant [1 ]
机构：
[1] Univ West, Trollhattan, Sweden
来源：
MATERIALS & DESIGN | 2018年 / 142卷
关键词：
Suspension; Hybrid feedstock; Layered; Composite; Functionally graded; Coatings; THERMAL BARRIER COATINGS; OXIDE FUEL-CELLS; COMPOSITE COATINGS; ELECTROCHEMICAL PERFORMANCE; PROCESS PARAMETERS; GRADED COATINGS; YSZ; MICROSTRUCTURE; ALUMINA; SYSTEM;
D O I：
10.1016/j.matdes.2018.01.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The attractive properties achieved by Suspension Plasma Spraying (SPS), combined with the availability of high throughput capable plasma spray systems that permit axial feeding, provide encouragement to explore use of suspensions for next generation functional applications. This paper deals with realization of coatings with various pre-determined function-dependent architectures by employing a hybrid powder-suspension feedstock. Some illustrative application-relevant coating architecture designs are discussed, along with the specific benefits that can accrue by deploying a multi-scale powder-suspension feedstock combination. An elegant feedstock delivery arrangement to enable either simultaneous or sequential feeding of powders and suspensions to enable convenient processing of coatings with desired architectures is presented. As proof-of-concept, deposition of layered, composite and functionally graded coatings using the above system is also demonstrated using appropriate case studies. (c) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：56 / 65
页数：10
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