Detail publikačního výsledku

Fabrication of graded porous ceramics using alumina-carbon powder mixtures

MACA, K., DOBŠÁK, P., BOCCACCINI, A.

Originální název

Fabrication of graded porous ceramics using alumina-carbon powder mixtures

Anglický název

Fabrication of graded porous ceramics using alumina-carbon powder mixtures

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Green bodies consisting of mixtures of submicrometric alumina powder and carbon coal were prepared by cold isostatic pressing. Sintering in air atmosphere resulted in alumina ceramics with controlled porous structure and a highly homogenous distribution of pores. Sintering in vacuum (at 1 to 5 Pa) followed by sintering in air for 2 h at 1530°C led to a graded porous structure. These samples exhibited a highly porous core and a dense surface layer. The conditions of thermodynamic equilibrium for the chemical reactions occurring in the studied system during sintering were calculated. These were used to explain the formation of the graded porosity.

Anglický abstrakt

Green bodies consisting of mixtures of submicrometric alumina powder and carbon coal were prepared by cold isostatic pressing. Sintering in air atmosphere resulted in alumina ceramics with controlled porous structure and a highly homogenous distribution of pores. Sintering in vacuum (at 1 to 5 Pa) followed by sintering in air for 2 h at 1530°C led to a graded porous structure. These samples exhibited a highly porous core and a dense surface layer. The conditions of thermodynamic equilibrium for the chemical reactions occurring in the studied system during sintering were calculated. These were used to explain the formation of the graded porosity.

Klíčová slova

sintering, porosity, alumina

Klíčová slova v angličtině

sintering, porosity, alumina

Autoři

MACA, K., DOBŠÁK, P., BOCCACCINI, A.

Vydáno

01.01.2001

ISSN

0272-8842

Periodikum

Ceramics International

Svazek

27

Číslo

5

Stát

Spojené království Velké Británie a Severního Irska

Strany od

577

Strany počet

8

BibTex

@article{BUT40122,
  author="Karel {Maca} and Petr {Dobšák} and Aldo {Boccaccini}",
  title="Fabrication of graded porous ceramics using alumina-carbon powder mixtures",
  journal="Ceramics International",
  year="2001",
  volume="27",
  number="5",
  pages="8",
  issn="0272-8842"
}