Preparation of nanophase materials by thermal spray processing of liquid precursors

Karthikeyan, J.; Berndt, C. C.; Tikkanen, Juha; Wang, Jenn Yue; King, Alexander H.; Herman, H.

doi:10.1016/s0965-9773(97)00037-8

Cited by 83 publications

(37 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Since the beginning of 21st century, there has been rapid development in nanostructured coating deposition using the SPPS process as reflected by a number of published articles [15][16][17][18][19][20][21][22]. However, most of the accounted papers focus on the deposition of ceramic materials alone and only a few have been reported on SPPS coating deposition for cermets (ceramic-metal composite) because of the oxidation potential of the metal-ions in the solution precursor [10,15].…”

Section: Solution Precursor Plasma Spraying Of Cermetsmentioning

confidence: 99%

Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Unabia

Candidato

Pawłowski

2018

Metals

View full text Add to dashboard Cite

Ceramic and metal composites, known also as cermets, may considerably improve many material properties with regards to that of initial components. Hence, cermets are frequently applied in many technological fields. Among many processes which can be employed for cermet manufacturing, thermal spraying is one of the most frequently used. Conventional plasma spraying of powders is a popular and cost-effective manufacturing process. One of its most recent innovations, called solution precursor plasma spraying (SPPS), is an emerging coating deposition method which uses homogeneously mixed solution precursors as a feedstock. The technique enables a single-step deposition avoiding the powder preparation procedures. The nanostructured coatings developed by SPPS increasingly find a place in the field of surface engineering. The present review shows the recent progress in the fabrication of cermets using SPPS. The influence of starting solution precursors, such as their chemistry, concentration, and solvents used, to the micro-structural characteristics of cermet coatings is discussed. The effect of the operational plasma spray process parameters such as solution injection mode to the deposition process and coatings' microstructure is also presented. Moreover, the advantages of the SPPS process and its drawbacks compared to the conventional powder plasma spraying process are discussed. Finally, some applications of SPPS cermet coatings are presented to understand the potential of the process.

show abstract

Section: Solution Precursor Plasma Spraying Of Cermetsmentioning

confidence: 99%

Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Unabia

Candidato

Pawłowski

2018

Metals

View full text Add to dashboard Cite

show abstract

“…[47] 4. 4 [137] Die Autoren berichteten seinerzeit, dass sich "der Prozess der Flammenspraysynthese als geeigneter für die Herstellung von Pulvern als für eine Abscheidung erwies. Die Effizienz der Abscheidung der Beschichtungen lag bei unter 10 %.…”

Section: Flammenspraysynthese Von Partikelfilmenunclassified

Halbleitergassensoren: Trockensynthese und Anwendung

2010

View full text Add to dashboard Cite

Seit der Entwicklung erster Chemiresistorgassensoren auf Metalloxidbasis wurden Wandler mit neuartigen Eigenschaften durch Nass‐ und Trockenabscheidung erzeugt. Der Direktaufbau nanostrukturierter Filme aus der Gasphase verspricht dabei eine einfache Herstellung und Steuerbarkeit, und mit geeigneten Synthese‐ und Abscheidungsmethoden können nm‐ bis μm‐dicke Filme hergestellt werden. Dichte Strukturen werden durch chemische oder Dampfabscheidungsverfahren unter kontrollierten Bedingungen erzeugt, Nanopartikelfilme durch Abscheidung mono‐ oder polydisperser, aggregierter oder agglomerierter Nanopartikel aus einem Gas. Durch schlagartiges Abkühlen während der Synthese lassen sich neuartige Materialien in Nichtgleichgewichts‐ oder substöchiometrischen Zuständen einfangen. Dieser Aufsatz beschreibt die gängigsten Verfahren für die Herstellung von Metalloxid‐Halbleiterdetektoren für chemische Gassensoren. Außerdem wird die Synthese hochporöser Filme mit neuentwickelten Aerosoltechniken diskutiert. Die chemischen und Struktureigenschaften werden der erhaltenen Sensorleistung gegenübergestellt.

show abstract

“…Soon it was recognized that SPS coatings revealed a unique microstructure that could not be achieved by ordinary spray processes like plasma and combustion flame spraying. In parallel, spraying of liquid precursors for the fabrication of nano-scaled powders and deposits were investigated (Ref 5,6).…”

Section: Introductionmentioning

confidence: 99%

What Do We Know, What are the Current Limitations of Suspension HVOF Spraying?

2015

View full text Add to dashboard Cite

Suspension spraying has evolved during the past decades and now is at the threshold of a commercial utilization. Compared to standard powder spray methods, mainly DC plasma spraying and (high velocity) flame spraying, it is quite clear that suspension spraying will not replace these well-established technologies but can extend them by adding new coating properties. Still there remain many issues to be solved. Suspension interaction with the hot gas stream is much more complex than in ordinary powder spray processes. In case of HVOF when axial injection into the combustion chamber is used, a direct observation of the liquid flame interaction is not possible. This paper discusses the present status of suspension HVOF-spraying (high velocity suspension flame spraying) including torch concepts, torch configuration in case of a TopGun system as well as different injector concepts and their influence on suspension atomization. The role of suspensions is discussed regarding their rheological and thermodynamical properties, mainly given by the solvent type and the solid content. An overview of different available diagnostic methods and systems and the respective applicability is given. Coating properties are shown and discussed for several oxide ceramics in respect to their possible applications.

show abstract

Preparation of nanophase materials by thermal spray processing of liquid precursors

Cited by 83 publications

References 3 publications

Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Current Progress in Solution Precursor Plasma Spraying of Cermets: A Review

Halbleitergassensoren: Trockensynthese und Anwendung

What Do We Know, What are the Current Limitations of Suspension HVOF Spraying?

Contact Info

Product

Resources

About