Processing and properties of fine-grained transparent MgAl2O4 ceramics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F07%3APU64719" target="_blank" >RIV/00216305:26210/07:PU64719 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Processing and properties of fine-grained transparent MgAl2O4 ceramics

Original language description

Transparent fine-grained MgAl2O4 ceramics was prepared from nanometre-sized powder without any sintering additives. Ceramic green bodies were prepared by cold isostatic pressing and then pressureless presintered at temperatures of 1550-1600degC to reachclosed porosity. Presintered samples were subsequently hot isostatically pressed (HIPed) at 1500degC and 200 MPa for 1 hour. The final density as well as the transparency of HIPed samples was affected by presintering densities. The highest final density(~100% t.d.) and highest in-line transmission (60.2% for sample thickness 1.1mm and = 632.8 nm) were obtained for sample presintered to the lowest density value still guaranteeing the structure with closed porosity (~94% t.d.). The HIPed sample had an average grain size of 1 micron and hardness HV=13.0 GPa.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

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UT code for WoS article

000249498400005

EID of the result in the Scopus database

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