Design of Composite Porous Cermets Synthesized by Hydrothermal Treatment of CrAl Powder Followed by Calcination Full article
| Journal |
Journal of Materials Science
ISSN: 0022-2461 , E-ISSN: 1573-4803 |
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| Output data | Year: 2010, Volume: 45, Number: 12, Pages: 3160-3168 Pages count : 9 DOI: 10.1007/s10853-010-4322-x | ||||||
| Tags | Agglomeration; Aluminum; Ball milling; Ball mills; Calcination; Chromium; Mechanical alloying; Microstructure; Phase interfaces; Powder metals; Raman spectroscopy; Stainless steel; Stoichiometry; Synthesis (chemical) | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union | 06-1000005-7663 |
Abstract:
The microstructure of the porous Cr–Al metal–oxide cermet was studied by means of XRD, SEM, EDX as well as IR and Raman spectroscopy. This cermet was synthesized by mechanical alloying of Cr–Al powders in an AGO-2 planetary ball mill followed by hydrothermal treatment in a special stainless steel die and calcination in air. As a result, a highly porous monolith comprised of metal-like particles randomly distributed in the oxide matrix (Cr2O3 and Al2O3) was formed. Two types of the composite cores were found in cermets. The first one consisted of chromium phase containing nanoparticles sized from 50 to 140 nm and Al-enriched phase at the interfaces. The second one consisted of new chromium oxide phases with hexagonal Cr2N-like and fcc CrN-like structures probably with Cr2O and CrO stoichiometry. These new phases were stabilized within aggregates of the nanocomposite particles containing inclusions of alumina. The relations between different preparation stages and the cermet microstructure are discussed.
Cite:
Tikhov S.
, Usoltsev V.
, Salanov A.
, Tsybulya S.
, Chesalov Y.
, Kustova G.
, Sadykov V.
, Golubkova G.
, Lomovskii O.
Design of Composite Porous Cermets Synthesized by Hydrothermal Treatment of CrAl Powder Followed by Calcination
Journal of Materials Science. 2010. V.45. N12. P.3160-3168. DOI: 10.1007/s10853-010-4322-x WOS Scopus РИНЦ ANCAN OpenAlex
Design of Composite Porous Cermets Synthesized by Hydrothermal Treatment of CrAl Powder Followed by Calcination
Journal of Materials Science. 2010. V.45. N12. P.3160-3168. DOI: 10.1007/s10853-010-4322-x WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Submitted: | Jun 30, 2009 |
| Accepted: | Feb 13, 2010 |
| Published online: | Mar 4, 2010 |
| Published print: | Jun 1, 2010 |
Identifiers:
| Web of science: | WOS:000276609000004 |
| Scopus: | 2-s2.0-77951665562 |
| Elibrary: | 15313547 |
| Chemical Abstracts: | 2010:277538 |
| Chemical Abstracts (print): | 152:507043 |
| OpenAlex: | W2063583426 |