Dielectric properties of plasma sprayed silicates subjected to additional annealing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00475260" target="_blank" >RIV/61389021:_____/17:00475260 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/17:00308467 RIV/68407700:21230/17:00308467

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric properties of plasma sprayed silicates subjected to additional annealing

Popis výsledku v původním jazyce

Several silicate materials were plasma sprayed and characterized by the authors. This work is concerned with selected dielectric properties of nthese deposits. Synthetic mullite and steatite as well as natural olivine-forsterite were plasma sprayed using the water-stabilized plasma system (WSP). The deposits were striped-out, ground and polished to produce samples in form of plates with a smooth surface. Part of samples was later annealed in air. These samples were tested in the alternative low voltage electric field to measure capacity and loss factor. Volume resistivity was measured in a DC field. It is shown that the relative permittivity of as-sprayed silicates is less stable compared to bulk in the whole studied frequency range. However, thermal annealing modifies the structure much closer to the sintered bulk which is also reflected in dielectric properties. Insulating ability of plasma-sprayed silicates with and without annealing is discussed in consequence with chemical changes and phase changes induced by annealingn

Název v anglickém jazyce

Dielectric properties of plasma sprayed silicates subjected to additional annealing

Popis výsledku anglicky

Several silicate materials were plasma sprayed and characterized by the authors. This work is concerned with selected dielectric properties of nthese deposits. Synthetic mullite and steatite as well as natural olivine-forsterite were plasma sprayed using the water-stabilized plasma system (WSP). The deposits were striped-out, ground and polished to produce samples in form of plates with a smooth surface. Part of samples was later annealed in air. These samples were tested in the alternative low voltage electric field to measure capacity and loss factor. Volume resistivity was measured in a DC field. It is shown that the relative permittivity of as-sprayed silicates is less stable compared to bulk in the whole studied frequency range. However, thermal annealing modifies the structure much closer to the sintered bulk which is also reflected in dielectric properties. Insulating ability of plasma-sprayed silicates with and without annealing is discussed in consequence with chemical changes and phase changes induced by annealingn

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/LO1207" target="_blank" >LO1207: Podpora udržitelnosti Inovačního centra diagnostiky a aplikace materiálů na ČVUT-FS v Praze</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Progress in Color, Colorants and Coatings

ISSN

2008-2134

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

IR - Íránská islámská republika

Počet stran výsledku

10

Strana od-do

105-114

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85019659773