Development and Properties of New Mullite Based Refractory Grog

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00119810" target="_blank" >RIV/00216224:14310/21:00119810 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26110/21:PU139389

Result on the web

<a href="https://www.mdpi.com/1996-1944/14/4/779" target="_blank" >https://www.mdpi.com/1996-1944/14/4/779</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14040779" target="_blank" >10.3390/ma14040779</a>

Result language

angličtina

Original language name

Development and Properties of New Mullite Based Refractory Grog

Original language description

The presented study is focused on optimization and characterization of a high-alumina refractory aggregate based on natural raw materials-kaolins, claystone, and mullite dust by-product (used to increase the alumina and mullite contents, respectively). In total, four individual formulas with the Al2O3 contents between 45 and 50 wt.% were designed; the samples were subsequently fired, both in a laboratory oven and an industrial tunnel furnace. The effects of repeated firing were examined during industrial pilot tests. Mineral and chemical compositions and microstructures, of both the raw materials and designed aggregates, were thoroughly investigated by the means of X-ray fluorescence spectroscopy, powder X-ray diffraction, and optical and scanning electron microscopies. Porosity, mineral composition, and mullite crystal-size development during the firing process were also studied. Based on the acquired results, the formula with the perspective to be used as a new mullite grog, featuring similar properties as the available commercial products, however, with reduced production expenses, was selected. The quality of grog determines to a large extent the properties of the final product. Hence, optimization of aggregates for specific refractories is of a great importance. The production of engineered aggregates provides the opportunity to utilize industrial by-products.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/TH02020321" target="_blank" >TH02020321: Production of Mullite Grog in a Shaft Kiln</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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

14

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

„779“

UT code for WoS article

000624117700001

EID of the result in the Scopus database

2-s2.0-85100778678