Feasibility of suspension spraying of yttria-stabilized zirconia with water-stabilized plasma torch

Kód výsledku v IS VaVaI

RIV/68407700:21340/15:00230673 - isvavai.cz

Nalezeny alternativní kódy

RIV/61389021:_____/15:00452251

Výsledek na webu

http://www.sciencedirect.com/science/article/pii/S025789721400680X

DOI - Digital Object Identifier

10.1016/j.surfcoat.2014.07.069

Jazyk výsledku

angličtina

Název v původním jazyce

Feasibility of suspension spraying of yttria-stabilized zirconia with water-stabilized plasma torch

Popis výsledku v původním jazyce

Thermal spraying of suspensions allows preparation of coatings from submicron-sized powders but demands a source of heat with a high enthalpy in order to provide an appropriate thermal treatment of the liquid feedstock during the in-flight stage so thatthe solvent may be evaporated, dispersed partides melted and accelerated towards the substrate to form a coating. Water-stabilized plasma (WSP) torch developed at the Institute of Plasma Physics AS CR, v.v.i. provides such a heat source with high enthalpy, high velocity of the plasma and, when compared to high-enthalpy gas-stabilized plasma (GSP) torches, relatively cheap operation. In this study, results of our experiments with suspension spraying of yttria-stabilized zirconia (YSZ) with WSP torch arepresented and demonstrate that coating deposition with a high feed rate is possible with WSP technology. Formation of both columnar "cauliflower" microstructure and segmentation cracks was achieved. Variation of the deposition conditions

Název v anglickém jazyce

Feasibility of suspension spraying of yttria-stabilized zirconia with water-stabilized plasma torch

Popis výsledku anglicky

Thermal spraying of suspensions allows preparation of coatings from submicron-sized powders but demands a source of heat with a high enthalpy in order to provide an appropriate thermal treatment of the liquid feedstock during the in-flight stage so thatthe solvent may be evaporated, dispersed partides melted and accelerated towards the substrate to form a coating. Water-stabilized plasma (WSP) torch developed at the Institute of Plasma Physics AS CR, v.v.i. provides such a heat source with high enthalpy, high velocity of the plasma and, when compared to high-enthalpy gas-stabilized plasma (GSP) torches, relatively cheap operation. In this study, results of our experiments with suspension spraying of yttria-stabilized zirconia (YSZ) with WSP torch arepresented and demonstrate that coating deposition with a high feed rate is possible with WSP technology. Formation of both columnar "cauliflower" microstructure and segmentation cracks was achieved. Variation of the deposition conditions

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

—

Projekt

GPP108/12/P552: Procesy porušování vrstvených materiálů v blízkosti fázových rozhraní

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Surface & Coatings Technology

ISSN

0257-8972

e-ISSN

—

Svazek periodika

268

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

58-62

Kód UT WoS článku

000353735300010

EID výsledku v databázi Scopus

2-s2.0-84926260446