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A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics

Ti(C,N)-reinforced alumina-zirconia composites with different ratios of C to N in titanium carbonitride solid solutions, such as Ti(C(0.3),N(0.7)) (C:N = 30:70) and Ti(C(0.5),N(0.5)) (C:N = 50:50), were tested to improve their mechanical properties. Spark plasma sintering (SPS) with temperatures ran...

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Autores principales: Szutkowska, Magdalena, Podsiadło, Marcin, Sadowski, Tomasz, Figiel, Paweł, Boniecki, Marek, Pietras, Daniel, Polczyk, Tomasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959295/
https://www.ncbi.nlm.nih.gov/pubmed/33802397
http://dx.doi.org/10.3390/molecules26051344
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author Szutkowska, Magdalena
Podsiadło, Marcin
Sadowski, Tomasz
Figiel, Paweł
Boniecki, Marek
Pietras, Daniel
Polczyk, Tomasz
author_facet Szutkowska, Magdalena
Podsiadło, Marcin
Sadowski, Tomasz
Figiel, Paweł
Boniecki, Marek
Pietras, Daniel
Polczyk, Tomasz
author_sort Szutkowska, Magdalena
collection PubMed
description Ti(C,N)-reinforced alumina-zirconia composites with different ratios of C to N in titanium carbonitride solid solutions, such as Ti(C(0.3),N(0.7)) (C:N = 30:70) and Ti(C(0.5),N(0.5)) (C:N = 50:50), were tested to improve their mechanical properties. Spark plasma sintering (SPS) with temperatures ranging from 1600 °C to 1675 °C and pressureless sintering (PS) with a higher temperature of 1720 °C were used to compare results. The following mechanical and physical properties were determined: Vickers hardness, Young’s modulus, apparent density, wear resistance, and fracture toughness. A composite with the addition of Ti(C(0.5),N(0.5))n nanopowder exhibited the highest Vickers hardness of over 19.0 GPa, and its fracture toughness was at 5.0 Mpa·m(1/2). A composite with the Ti(C(0.3),N(0.7)) phase was found to have lower values of Vickers hardness (by about 10%), friction coefficient, and specific wear rate of disc (Ws(d)) compared to the composite with the addition of Ti(C(0.5),N(0.5)). The Vickers hardness values slightly decreased (from 5% to 10%) with increasing sintering temperature. The mechanical properties of the samples sintered using PS were lower than those of the samples that were spark plasma sintered. This research on alumina–zirconia composites with different ratios of C to N in titanium carbonitride solid solution Ti(C,N), sintered using an unconventional SPS method, reveals the effect of C/N ratios on improving mechanical properties of tested composites. X-ray analysis of the phase composition and an observation of the microstructure was carried out.
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spelling pubmed-79592952021-03-16 A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics Szutkowska, Magdalena Podsiadło, Marcin Sadowski, Tomasz Figiel, Paweł Boniecki, Marek Pietras, Daniel Polczyk, Tomasz Molecules Article Ti(C,N)-reinforced alumina-zirconia composites with different ratios of C to N in titanium carbonitride solid solutions, such as Ti(C(0.3),N(0.7)) (C:N = 30:70) and Ti(C(0.5),N(0.5)) (C:N = 50:50), were tested to improve their mechanical properties. Spark plasma sintering (SPS) with temperatures ranging from 1600 °C to 1675 °C and pressureless sintering (PS) with a higher temperature of 1720 °C were used to compare results. The following mechanical and physical properties were determined: Vickers hardness, Young’s modulus, apparent density, wear resistance, and fracture toughness. A composite with the addition of Ti(C(0.5),N(0.5))n nanopowder exhibited the highest Vickers hardness of over 19.0 GPa, and its fracture toughness was at 5.0 Mpa·m(1/2). A composite with the Ti(C(0.3),N(0.7)) phase was found to have lower values of Vickers hardness (by about 10%), friction coefficient, and specific wear rate of disc (Ws(d)) compared to the composite with the addition of Ti(C(0.5),N(0.5)). The Vickers hardness values slightly decreased (from 5% to 10%) with increasing sintering temperature. The mechanical properties of the samples sintered using PS were lower than those of the samples that were spark plasma sintered. This research on alumina–zirconia composites with different ratios of C to N in titanium carbonitride solid solution Ti(C,N), sintered using an unconventional SPS method, reveals the effect of C/N ratios on improving mechanical properties of tested composites. X-ray analysis of the phase composition and an observation of the microstructure was carried out. MDPI 2021-03-03 /pmc/articles/PMC7959295/ /pubmed/33802397 http://dx.doi.org/10.3390/molecules26051344 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Szutkowska, Magdalena
Podsiadło, Marcin
Sadowski, Tomasz
Figiel, Paweł
Boniecki, Marek
Pietras, Daniel
Polczyk, Tomasz
A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title_full A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title_fullStr A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title_full_unstemmed A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title_short A Novel Approach by Spark Plasma Sintering to the Improvement of Mechanical Properties of Titanium Carbonitride-Reinforced Alumina Ceramics
title_sort novel approach by spark plasma sintering to the improvement of mechanical properties of titanium carbonitride-reinforced alumina ceramics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7959295/
https://www.ncbi.nlm.nih.gov/pubmed/33802397
http://dx.doi.org/10.3390/molecules26051344
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