Preparation and mechanical properties of alumina composites reinforced with nickel-coated graphene

Jarosław Woźniak , Maria Trzaska , Grzegorz Cieślak , Tomasz Cygan , Marek Kostecki , Andrzej Olszyna


This paper discusses the influence of nickel-phosphorus coated graphene (Gn-Ni-P) and uncoated graphene (Gn) addition to an alumina matrix and its impact on the mechanical properties of obtained composites. The composites are prepared via powder processing and consolidated using the Spark Plasma Sintering (SPS) method. The effects of the addition of coated graphene and coating thickness on mechanical properties were evaluated. Physical properties such as relative density, hardness and fracture toughness were analyzed. Significant improvement of the fracture toughness (60%) for the composites with 2 vol. % Gn-Ni-P compared to reference sample was observed. Moreover, 35% higher KIC was noticed for Gn-Ni-P reinforced composites than for Al2O3-Gn.
Author Jarosław Woźniak ZMCP
Jarosław Woźniak,,
- Division of Ceramic Materials and Polymers
, Maria Trzaska ZIP
Maria Trzaska,,
- Division of Surface Engineering
, Grzegorz Cieślak
Grzegorz Cieślak,,
, Tomasz Cygan ZMCP
Tomasz Cygan,,
- Division of Ceramic Materials and Polymers
, Marek Kostecki ZMCP
Marek Kostecki,,
- Division of Ceramic Materials and Polymers
, Andrzej Olszyna ZMCP
Andrzej Olszyna,,
- Division of Ceramic Materials and Polymers
Journal seriesCeramics International, ISSN 0272-8842
Issue year2016
Publication size in sheets0.5
Keywords in EnglishSintering, Composites, Mechanicalproperties, Al2O3
Languageen angielski
Score (nominal)40
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.986 (2) - 2016=2.814 (5)
Citation count*6 (2018-02-20)
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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.