Hydroxyapatite/zirconia-microfibre composites with controlled microporosity and fracture properties prepared by electrophoretic deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450313" target="_blank" >RIV/68081723:_____/15:00450313 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/15:PU114787

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2015.05.070" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2015.05.070</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2015.05.070" target="_blank" >10.1016/j.ceramint.2015.05.070</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydroxyapatite/zirconia-microfibre composites with controlled microporosity and fracture properties prepared by electrophoretic deposition

Popis výsledku v původním jazyce

The stabilisation of hydroxyapatite (HA) particles in dispersions containing 2-propanol and monochloroacetic acid (MCAA) was studied. The surface of HA (Ca2? cations) was stabilized by chemical adsorption of non-dissociated MCAA molecules via polar Cl atoms followed by dissociation (cleavage of the protons), which led to negative charging of the HA particles. Colloidal dispersions were milled for 0, 2 and 24 h in a planetary ball mill before electrophoretic deposition (EPD). The electrical conductivityof dispersions was modified by adding an indifferent electrolyte (LiCl) to obtain crack-free deposits with a smooth surface. HA and HA/t-ZrO2 composites containing 2, 4, 8 and 16 wt% zirconia microfibres were prepared by EPD. HA decomposed into ?-TCP, ?-TCP and partially substituted calcium phosphate by the action of Li? cations during sintering. Elastic modulus and Vickers hardness of composites increased with milling time of the dispersions prior to EPD and decreased with the quantity

Název v anglickém jazyce

Hydroxyapatite/zirconia-microfibre composites with controlled microporosity and fracture properties prepared by electrophoretic deposition

Popis výsledku anglicky

The stabilisation of hydroxyapatite (HA) particles in dispersions containing 2-propanol and monochloroacetic acid (MCAA) was studied. The surface of HA (Ca2? cations) was stabilized by chemical adsorption of non-dissociated MCAA molecules via polar Cl atoms followed by dissociation (cleavage of the protons), which led to negative charging of the HA particles. Colloidal dispersions were milled for 0, 2 and 24 h in a planetary ball mill before electrophoretic deposition (EPD). The electrical conductivityof dispersions was modified by adding an indifferent electrolyte (LiCl) to obtain crack-free deposits with a smooth surface. HA and HA/t-ZrO2 composites containing 2, 4, 8 and 16 wt% zirconia microfibres were prepared by EPD. HA decomposed into ?-TCP, ?-TCP and partially substituted calcium phosphate by the action of Li? cations during sintering. Elastic modulus and Vickers hardness of composites increased with milling time of the dispersions prior to EPD and decreased with the quantity

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

11202-11212

Kód UT WoS článku

000359165500109

EID výsledku v databázi Scopus

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