Synthesis and Characterization of New Refractory Coatings Based on Talc, Cordierite, Zircon and Mullite Fillers for Lost Foam Casting Process

• Autorzy: Prstić A. , Aćimović-Pavlović Z. , Terzić A. , Pavlović L.

Identyfikatory

DOI

10.2478/amm-2014-0015

Warianty tytułu

PL

Synteza i charakterystyka nowych powłok ogniotrwałych na bazie talku, kordierytu, cyrkonii i mulitu do odlewania metodą piany traconej

• Języki publikacji: EN

Abstrakty

EN

Refractory coatings based on different refractory fillers (talc, cordierite, zircon and mullite) for application in Lost Foam casting process were investigated. Design and optimization of the coatings composition with controlled, rheological properties included, and consequently synthesis were achieved by application of different coating components, namely different suspension agents and fillers and by alteration of the coating production procedure. Morphologic and microstructural analysis of fillers was carried out by means of scanning electronic microscope. X-ray diffraction analysis by means of X-ray diffractometer was applied in determination and monitoring the phase composition changes of the refractory fillers. An analysis of the particle size and shape was carried out by means of the PC software application package OZARIA 2.5. To assess the effects of application of individual refractory coatings, a detailed investigation of structural and mechanical properties of the moldings obtained was performed. Highlight was placed on revealing and analyzing surface and volume defects present on moldings. Radiographic molding tests were carried out by means of the X-ray device SAIFORT type-S200. Attained results are essential for the synthesis of refractory coatings based on high-temperature fillers and their applications in Lost Foam casting process for manufacturing of moldings with in-advance-set properties.

PL

W pracy przedstawiono wyniki badań materiałów wysokotemperaturowych - powłok ogniotrwałych na bazie talku, kordierytu. cyrkonii i mulitu, które są stosowane w procesie odlewania metodą piany traconej. Projektowanie i optymalizację składu powłoki o kontrolowanych właściwościach teologicznych, a następnie syntezę osiągnięto poprzez zastosowanie różnych skład- ników powłok, tj. różnych stabilizatorów zawiesiny i wypełniaczy oraz poprzez zmiany w procesie produkcji powłok. Analizę morfologiczną i mikrostruktura!ną wypełniaczy przeprowadzono za pomocą elektronowego mikroskopu skaningowego. Analizę dyfrakcji promieni rentgenowskich zastosowano do określania i monitorowania zmian składu fazowego wypełniaczy ognio- trwałych. Analizę wielkości i kształtu cząstek przeprowadzono za pomocą pakietu oprogramowania użytkowego PC OZARIA 2.5. Żeby ocenić skutki stosowania poszczególnych powłok ogniotrwałych, przeprowadzono szczegółowe badania właściwości strukturalnych i mechanicznych otrzymanych form. Nacisk został położony na ujawnienie i analizę defektów powierzchni i objętości obecnych w formach. Radiograficzne testy formowania przeprowadzono za pomocą urządzenia SAJFORT typu S200. Uzyskane wyniki są niezbędne do syntezy powłok ogniotrwałych w oparciu o wysokotemperaturowe wypełniacze i ich zastosowań w procesie odlewania metodą piany traconej do produkcji form o z góry ustalonych właściwościach.

Słowa kluczowe

EN

high-temperature materials; refractory coatings; talc; cordierite; zircon; mullite; lost foam casting

PL

talk; materiały wysokotemperaturowe; kordieryt; cyrkonia; mulit; metoda piany traconej

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2014
• Tom: Vol. 59, iss. 1
• Strony: 89--95
• Opis fizyczny: Bibliogr. 33 poz., rys., tab.

Twórcy

autor

Prstić A.

• AMI-Beograd, Beograd, Serbia

autor

Aćimović-Pavlović Z.

• University of Belgrade, Faculty of Technology and Metallurgy Belgrade, Serbia

autor

Terzić A.

• Institute for Materials Testing, Belgrade, Serbia

autor

Pavlović L.

• Institute for Technology of Nuclear and Other Raw Mineral Materials, Belgrade, Serbia

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