Composition of plasma‐sprayed tungsten coatings on CuCrZr alloy

Kačiulis, S.; Mezzi, A.; Montanari, Roberto; Ucciardello, Nadia; Volterri, R.

doi:10.1002/sia.3302

Cited by 10 publications

(10 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specific coating characteristics, i.e., morphology, structure, integrity and mechanical properties, were then thoroughly investigated [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Laser Pulse Effects on Plasma-Sprayed and Bulk Tungsten

Montanari

Pakhomova

Pizzoferrato

et al. 2017

Metals

View full text Add to dashboard Cite

Tungsten (W) is considered a promising plasma-facing material for protecting the divertor of the ITER (International Thermonuclear Experimental Reactor). The effects on W of transient thermal loads of high energy occurring in a tokamak under operative conditions have been simulated through a single laser pulse delivered by an Nd:YAG laser. Bulk and plasma-sprayed (PS) samples have been submitted to tests and successively examined via SEM (scanning electron microscopy) observations. In both types of materials, the laser pulse induces similar effects: (i) a crater forms in the spot central area; (ii) all around the area, the ejection and the movement of molten metal give rise to a ridge; (iii) in a more external area, the surface shows plates with jagged boundaries and cracks induced by thermal stresses; (iv) the pores present in the original material become preferred ablation sites. However, the affected surface area in PS samples is larger and asymmetric if compared to that of bulk material. Such a difference has been explained by considering how microstructural characteristics influence heat propagation from the irradiated spot, and it was found that grain size and shape play a decisive role.

show abstract

“…The specific coating characteristics, i.e., morphology, structure, integrity and mechanical properties, were then thoroughly investigated [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Laser Pulse Effects on Plasma-Sprayed and Bulk Tungsten

Montanari

Pakhomova

Pizzoferrato

et al. 2017

Metals

View full text Add to dashboard Cite

show abstract

“…42 In another paper, Kaciulis et al 43 examined tungsten coatings on CuCrZr alloys using EDXRF, XPS and Auger electron spectrometry. 42 In another paper, Kaciulis et al 43 examined tungsten coatings on CuCrZr alloys using EDXRF, XPS and Auger electron spectrometry.…”

Section: Non-ferrous Metals and Alloysmentioning

confidence: 99%

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Carter

Fisher

Goodall

et al. 2011

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

Metals 1.1 Ferrous metals and alloys 1.2 Non-ferrous metals and alloys 2 Chemicals 2.1 Petroleum and petroleum products 2.1.1 Petroleum products -gasoline, diesels, gasohol, exhaust particulates 2.1.2 Fuel -coal, fly ash, particulates/emissions 2.1.3 Oils -crude oil, lubricants 2.1.4 Alternative fuels 2.2 Organic chemicals and solvents 2.2.1 The analysis of archaeological and art objects 2.2.2 LIBS and other laser techniques 2.2.3 Mass spectrometric techniques 2.2.4 Ion beam techniques 2.2.5 Speciation 2.2.6 Extraction, preconcentration and sample introduction 2.3 Inorganic chemicals and acids 2.3.1 Reviews, overviews and CRMs 2.3.2 Cements, concretes and plasters 2.3.3 Matrix modifiers 2.3.4 Forensic applications 2.3.5 Other applications 2.3.6 The analysis of nano-structures 2.3.6.1 Reviews and CRMs 2.3.6.2 Methods of analysis 2.4 Nuclear materials 2.4.1 Reviews and overviews 2.4.2 Nuclear forensic and safeguards applications 2.4.3 Other nuclear applications 3 Advanced materials 3.1 Polymeric materials and composites

show abstract

“…The mock‐ups were able to sustain a remarkable number of thermal fatigue cycles under high heat flux (up to 5 MW/m 2 ) . The microstructural and mechanical properties of the coating were extensively investigated and the obtained results demonstrated its good characteristics. Similar promising results have been obtained also by Chong et al…”

Section: Introductionmentioning

confidence: 99%

Micro‐chemical investigation of thick W coating on AISI 420 martensitic steel

Balijepalli

Kačiulis

Lionetti

et al. 2014

Surface & Interface Analysis

Self Cite

View full text Add to dashboard Cite

Tungsten is a favorable material for protecting mechanical components such as thermal shields and divertor parts from plasma damage in nuclear fusion reactors. A thick coating of W has been developed on AISI 420 martensitic stainless steel substrate by means of plasma spray technique. Plasma spraying has been used for its simplicity, the possibility to cover complex and extended surfaces and the relatively low cost. An appropriate interlayer has been optimized to increase the adhesion of W coating on the steel substrate and to provide a soft interface with intermediate thermal expansion coefficient for better thermo‐mechanical compatibility. The present work describes and discusses the results of micro‐chemical investigations on coating and interface by X‐ray photoelectron spectroscopy and Auger electron spectroscopy. Copyright © 2014 John Wiley & Sons, Ltd.

show abstract

Composition of plasma‐sprayed tungsten coatings on CuCrZr alloy

Cited by 10 publications

References 4 publications

Laser Pulse Effects on Plasma-Sprayed and Bulk Tungsten

Laser Pulse Effects on Plasma-Sprayed and Bulk Tungsten

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Micro‐chemical investigation of thick W coating on AISI 420 martensitic steel

Contact Info

Product

Resources

About