Sintering and crystallization of mullite in diphasic gels

L. Pach, A. Iratni, Z. Hrabe, S. Svetík, Sridhar Komarneni

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Diphasic monolithic mullite gel of stoichiometric composition shows a multiple aggregation of colloidal SiO2 (∼ 12 nm) and AlOOH (∼10 nm) particles. The identity of the colloidal particles is retained up to the crystallization of mullite at a temperature of 1240°C in unpressed or 1220°C in gels cold-isostatically pressed at 1.5 GPa. Intensive sintering is closely followed by crystallization of mullite. Both sintering and crystallization are apparently related with the formation of a silica continuum. Nucleation of mullite appears to occur at points of contact (interface) of SiO2/δ-Al2O3 particles.

Original languageEnglish (US)
Pages (from-to)5490-5494
Number of pages5
JournalJournal of Materials Science
Volume30
Issue number21
DOIs
StatePublished - Jan 1 1995

Fingerprint

Mullite
Crystallization
Sintering
Gels
Silicon Dioxide
Nucleation
Agglomeration
Silica
aluminosilicate
Chemical analysis
Temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Pach, L. ; Iratni, A. ; Hrabe, Z. ; Svetík, S. ; Komarneni, Sridhar. / Sintering and crystallization of mullite in diphasic gels. In: Journal of Materials Science. 1995 ; Vol. 30, No. 21. pp. 5490-5494.
@article{74a27aad9a6b47b187b6081e66210bc1,
title = "Sintering and crystallization of mullite in diphasic gels",
abstract = "Diphasic monolithic mullite gel of stoichiometric composition shows a multiple aggregation of colloidal SiO2 (∼ 12 nm) and AlOOH (∼10 nm) particles. The identity of the colloidal particles is retained up to the crystallization of mullite at a temperature of 1240°C in unpressed or 1220°C in gels cold-isostatically pressed at 1.5 GPa. Intensive sintering is closely followed by crystallization of mullite. Both sintering and crystallization are apparently related with the formation of a silica continuum. Nucleation of mullite appears to occur at points of contact (interface) of SiO2/δ-Al2O3 particles.",
author = "L. Pach and A. Iratni and Z. Hrabe and S. Svet{\'i}k and Sridhar Komarneni",
year = "1995",
month = "1",
day = "1",
doi = "10.1007/BF00351563",
language = "English (US)",
volume = "30",
pages = "5490--5494",
journal = "Journal of Materials Science",
issn = "0022-2461",
publisher = "Springer Netherlands",
number = "21",

}

Sintering and crystallization of mullite in diphasic gels. / Pach, L.; Iratni, A.; Hrabe, Z.; Svetík, S.; Komarneni, Sridhar.

In: Journal of Materials Science, Vol. 30, No. 21, 01.01.1995, p. 5490-5494.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Sintering and crystallization of mullite in diphasic gels

AU - Pach, L.

AU - Iratni, A.

AU - Hrabe, Z.

AU - Svetík, S.

AU - Komarneni, Sridhar

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Diphasic monolithic mullite gel of stoichiometric composition shows a multiple aggregation of colloidal SiO2 (∼ 12 nm) and AlOOH (∼10 nm) particles. The identity of the colloidal particles is retained up to the crystallization of mullite at a temperature of 1240°C in unpressed or 1220°C in gels cold-isostatically pressed at 1.5 GPa. Intensive sintering is closely followed by crystallization of mullite. Both sintering and crystallization are apparently related with the formation of a silica continuum. Nucleation of mullite appears to occur at points of contact (interface) of SiO2/δ-Al2O3 particles.

AB - Diphasic monolithic mullite gel of stoichiometric composition shows a multiple aggregation of colloidal SiO2 (∼ 12 nm) and AlOOH (∼10 nm) particles. The identity of the colloidal particles is retained up to the crystallization of mullite at a temperature of 1240°C in unpressed or 1220°C in gels cold-isostatically pressed at 1.5 GPa. Intensive sintering is closely followed by crystallization of mullite. Both sintering and crystallization are apparently related with the formation of a silica continuum. Nucleation of mullite appears to occur at points of contact (interface) of SiO2/δ-Al2O3 particles.

UR - http://www.scopus.com/inward/record.url?scp=0029405912&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029405912&partnerID=8YFLogxK

U2 - 10.1007/BF00351563

DO - 10.1007/BF00351563

M3 - Article

VL - 30

SP - 5490

EP - 5494

JO - Journal of Materials Science

JF - Journal of Materials Science

SN - 0022-2461

IS - 21

ER -