Investigation of setting reaction in magnesium potassium phosphate ceramics with time resolved infrared spectroscopy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F17%3A00475510" target="_blank" >RIV/68378297:_____/17:00475510 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0167577X17309552" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0167577X17309552</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matlet.2017.06.063" target="_blank" >10.1016/j.matlet.2017.06.063</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of setting reaction in magnesium potassium phosphate ceramics with time resolved infrared spectroscopy

Popis výsledku v původním jazyce

Crucial information on reaction products in magnesium potassium phosphate ceramics, essential for material design, is lacking. Setting reaction has been followed with time resolved infrared spectroscopy, supported by 2D correlation spectroscopy. We found evidence of a first amorphous orthophosphate precursor, possibly MgKPO4·H2O, forming early, and of a second intermediate amorphous phase, more structurally similar to MgKPO4·6H2O, forming later. Crystallization of MgKPO4·6H2O occurs from this last phase. Presence of amorphous Mg(OH)2 and magnesium phosphates identified as precipitates from diluted suspensions, was excluded. This complex set of parallel reactions, bears analogies with reaction of zinc phosphate cements and is consistent with recent NMR results.

Název v anglickém jazyce

Investigation of setting reaction in magnesium potassium phosphate ceramics with time resolved infrared spectroscopy

Popis výsledku anglicky

Crucial information on reaction products in magnesium potassium phosphate ceramics, essential for material design, is lacking. Setting reaction has been followed with time resolved infrared spectroscopy, supported by 2D correlation spectroscopy. We found evidence of a first amorphous orthophosphate precursor, possibly MgKPO4·H2O, forming early, and of a second intermediate amorphous phase, more structurally similar to MgKPO4·6H2O, forming later. Crystallization of MgKPO4·6H2O occurs from this last phase. Presence of amorphous Mg(OH)2 and magnesium phosphates identified as precipitates from diluted suspensions, was excluded. This complex set of parallel reactions, bears analogies with reaction of zinc phosphate cements and is consistent with recent NMR results.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/LO1219" target="_blank" >LO1219: Udržitelný pokročilý rozvoj CET</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Materials Letters

ISSN

0167-577X

e-ISSN

—

Svazek periodika

205

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

62-66

Kód UT WoS článku

000405458800015

EID výsledku v databázi Scopus

2-s2.0-85020905558