Utilization of Fly Ash in the Synthesis of Refractory Forsterite-Spinel Ceramics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU139545" target="_blank" >RIV/00216305:26110/21:PU139545 - isvavai.cz</a>

Result on the web

<a href="https://www.scientific.net/SSP.321.131.pdf" target="_blank" >https://www.scientific.net/SSP.321.131.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.321.131" target="_blank" >10.4028/www.scientific.net/SSP.321.131</a>

Result language

angličtina

Original language name

Utilization of Fly Ash in the Synthesis of Refractory Forsterite-Spinel Ceramics

Original language description

Forsterite refractory ceramics is utilized in the metallurgical and cement industries as a lining of metallurgical furnaces and rotary kilns for its high refractoriness up to 1850°C and refractoriness under load above 1600°C. Another significant property of forsterite is its coefficient of linear thermal expansion utilized in the electrotechnical industry for ceramic-metal joints. Addition of aluminium oxide into the raw material mixture results in creation of magnesiumalumina spinel (MgO·Al2O3) which improves sintering, thermal shock resistance and mechanical properties in comparison with pure forsterite ceramics. Inexpensive source of aluminium oxide is fly ash. Utilization of fly ash, secondary energetic product of coal-burning power plants, is important for the environment and sustainable development. This paper evaluated properties of fly ash-based forsterite-spinel ceramics in comparison with alumina-based forsterite-spinel ceramics. Forsterite-spinel ceramics was synthesized from olivine, calcined magnesite and fly ash/alumina powders. XRD analysis was used to determine mineralogical composition, thermal analyses were used to determine the behaviour during firing and scanning electron microscopy to determine the morphology of crystal phases. Refractoriness of pyrometric cones, refractoriness under load, thermal shock resistance, coefficient of linear thermal expansion, water absorption, porosity and modulus of rupture were also determined on fired test samples.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA18-02815S" target="_blank" >GA18-02815S: Elimination of sulphur oxide emission during the firing of ceramic bodies based on fly ashes of class C</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Article name in the collection

Solid State Phenomena

ISBN

978-80-214-5816-1

ISSN

1662-9779

e-ISSN

—

Number of pages

10

Pages from-to

131-140

Publisher name

Trans Tech Publications Ltd.

Place of publication

Switzerland

Event location

Brno

Event date

Dec 5, 2019

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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