Published 1990 | Version v1
Miscellaneous Open

Effect of Fe2O3 on the sintering and stabilization of ZrO2-MgO system

Creators

  • 1. Sao Carlos Univ., SP (Brazil). Dept. de Quimica
  • 2. Sao Carlos Univ., SP (Brazil). Dept. de Engenharia de Materiais
  • 3. UNESP, Araraquara, SP (Brazil). Dept. de Engenharia de Materiais

Description

Through X-ray diffraction, it was studied the influence of the iron oxide (Fe2O3) as a mineralizer in the development of partially stabilized zirconia phases (cubic/tetragonal) within the system ZrO2-MgO. In the preparation of the studied compositions it was utilized a Brazilian comercial zirconia powder and different precursors for the MgO and Fe2O3 additives. It was observed that the main effect of iron oxide consisted on the speed up of the solid solution formation process of Mg+2 in the Zr+4 sub-lattice, as well as being a very effective sintering agent. (author)

Abstract (Portuguese)

Neste trabalho estudou-se atraves de difracao de raios-X o efeito do oxido de ferro (Fe2O3) como aditivo mineralizador auxiliar no processo de formacao das fases (tetragonal e/ou cubica) do sistema ZrO2-MgO. No preparo das composicoes foi utilizada uma zirconia de pureza comercial e diferentes precursores para o MgO e o Fe2O3. Foi observado que o efeito principal do oxido de ferro consiste na aceleracao do processo de formacao de solucao solida do MgO na matriz de zirconia, atuando ainda como aditivo de sinterizacao. (author)

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Additional details

Additional titles

Original title (Portuguese)
Efeito do Fe

Publishing Information

Imprint Title
Proceedings of the 34. Brazilian Congress on Ceramics. v. 1
Imprint Pagination
341 p.
Journal Page Range
p. 145-153.
Report number
INIS-BR--2255

Conference

Title
34. Brazilian Congress on Ceramics.
Dates
20-23 May 1990.
Place
Blumenau, SC (Brazil).

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
21086118
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CERAMICS; IRON OXIDES; MAGNESIUM OXIDES; SINTERING; X-RAY DIFFRACTION; ZIRCONIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; FABRICATION; IRON COMPOUNDS; MAGNESIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Notes
Imprint:Anais do 34. Congresso Brasileiro de Ceramica. v. 1.