Mechanochemical treatment of talc

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F17%3APU126758" target="_blank" >RIV/00216305:26310/17:PU126758 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanochemical treatment of talc

Popis výsledku v původním jazyce

With the development of blended cements and alkali activated materials, the importance of an use of pozzolanic materials constantly grows. One of the most frequently used pozzolanic materials is metakaolin, a product of thermal dehydroxylation of kaolinite. It is not possible to prepare a meta stable phase of talc, the most common magnesium silicate clay mineral, this way, due to its quick recrystallization to enstatite over 800 °C. On the other hand it was found out that a preparation of this phase, called meta talc, is possible via mechanochemical activation, a process where a raw material (talc in our case) is exposed to high level of mechanical energy. This process is typically carried out in high energy mills (vibrating mill, planetary mill, attritor). This contribution is focused at an investigation of an effect of milling time in a vibrating mill on structure and properties of talc Luzenac H70. A progress of loss of crystallinity during mechanochemical activation was studied by X-Ray diffractom

Název v anglickém jazyce

Mechanochemical treatment of talc

Popis výsledku anglicky

With the development of blended cements and alkali activated materials, the importance of an use of pozzolanic materials constantly grows. One of the most frequently used pozzolanic materials is metakaolin, a product of thermal dehydroxylation of kaolinite. It is not possible to prepare a meta stable phase of talc, the most common magnesium silicate clay mineral, this way, due to its quick recrystallization to enstatite over 800 °C. On the other hand it was found out that a preparation of this phase, called meta talc, is possible via mechanochemical activation, a process where a raw material (talc in our case) is exposed to high level of mechanical energy. This process is typically carried out in high energy mills (vibrating mill, planetary mill, attritor). This contribution is focused at an investigation of an effect of milling time in a vibrating mill on structure and properties of talc Luzenac H70. A progress of loss of crystallinity during mechanochemical activation was studied by X-Ray diffractom

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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