The effect of microstructure evolution on mechanical properties in novel alumina-montmorillonite composites

Tomasz Cygan , Jarosław Woźniak , Mateusz Petrus , Bogusława Adamczyk-Cieślak , Marek Kostecki , Andrzej Olszyna


Fabrication of alumina matrix composites reinforced with montmorillonite (MMT) is introduced in this work. Specimens were prepared with the use of powder metallurgy and consolidated using the Spark Plasma Sintering (SPS) method. Investigations were then carried out on the influence of MMT addition on microstructure, mechanical properties and tribological performance of the alumina matrix composites. Scanning Electron Microscopy (SEM) revealed significant changes in microstructure where elongated, abnormally overgrown grains of alumina can be observed in areas contacted with montmorillonite. This unusual bimodal microstructure greatly influenced the measured mechanical properties and friction study. Tribological examinations exhibited outstanding results, where samples with montmorillonite addition demonstrate significant improvement in the wear in comparison to pure unmodified alumina sinters.
Author Tomasz Cygan (FMSE / DSMP)
Tomasz Cygan,,
- Division of Ceramic Materials and Polymers
, Jarosław Woźniak (FMSE / DSMP)
Jarosław Woźniak,,
- Division of Ceramic Materials and Polymers
, Mateusz Petrus (FMSE / DSMP)
Mateusz Petrus,,
- Division of Ceramic Materials and Polymers
, Bogusława Adamczyk-Cieślak (FMSE / DMD)
Bogusława Adamczyk-Cieślak,,
- Division of Materials Design
, Marek Kostecki (FMSE / DSMP)
Marek Kostecki,,
- Division of Ceramic Materials and Polymers
, Andrzej Olszyna (FMSE / DSMP)
Andrzej Olszyna,,
- Division of Ceramic Materials and Polymers
Journal seriesInternational Journal of Refractory Metals & Hard Materials, ISSN 0263-4368
Issue year2019
Publication size in sheets0.5
Keywords in PolishTlenek aluminium, Montmorylonit, Kompozyty na osnowie ceramicznej (CMC), Mikrostruktura, Właściwości mechaniczne, Spiekanie proszków metodą SPS
Keywords in EnglishAlumina, Montmorillonite, Ceramic-matrix composites (CMCs), Microstructure, Mechanical properties, Spark Plasma Sintering (SPS)
Languageen angielski
Additional file
1-s2.0-S0263436818306425-main.pdf 3.82 MB
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 09-06-2020, ArticleFromJournal
Publication indicators Scopus Citations = 2; WoS Citations = 0; GS Citations = 1.0; WoS Impact Factor: 2018 = 2.794 (2) - 2018=2.907 (5)
Citation count*1 (2020-08-10)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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