Spark plasma sintered Al2O3-YSZ-TiO2 composites: Processing, characterization and in vivo evaluation

Ozden Ormanci; Ipek Akin; Filiz Sahin; Onuralp Yucel; Viorica Simon; Simona Cavalu; Gultekin Goller

doi:10.1016/j.msec.2014.03.041

Spark plasma sintered Al₂O₃-YSZ-TiO₂ composites: Processing, characterization and in vivo evaluation

Ozden Ormanci
, Ipek Akin
, Filiz Sahin
, Onuralp Yucel
, Viorica Simon
, Simona Cavalu
, Gultekin Goller^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

Al₂O₃ and Al₂O₃-YSZ composites containing 3 and 5 wt.% TiO₂ were prepared by spark plasma sintering at temperatures of 1350-1400 °C for 300 s under a pressure of 40 MPa. The grain growth of alumina was suppressed by the addition of YSZ. Al ₂O₃-YSZ composites showed higher hardness than monolithic Al₂O₃. There was not a considerable difference in hardness values for Al₂O₃-YSZ composites containing 10 and 20 vol.% YSZ and the addition of TiO₂ decreased the hardness of the composites. The fracture toughness of Al₂O₃ increased from 2.8 MPa·m^1/2 to 4.3 MPa·m^1/2 with the addition of 10 vol.% YSZ, further addition resulted in higher fracture toughness values. The fracture toughness values were increased with TiO₂ addition and the highest value of fracture toughness, 5.3 MPa·m ^1/2, was achieved with the addition of 20 vol.% YSZ and 5 wt.% TiO₂. Preliminary in vivo tests demonstrated the biocompatibility and osseointegration of the composites after 6 week post-implantation in femur of Wistar rats.

Original language	English
Pages (from-to)	16-23
Number of pages	8
Journal	Materials Science and Engineering C
Volume	40
DOIs	https://doi.org/10.1016/j.msec.2014.03.041
Publication status	Published - 1 Jul 2014

Funding

This work was supported by the Scientific and Technological Research Council of Turkey (project number: 111M455 ). The authors would like to thank H. Dincer for his contribution in SPS studies and H. Sezer and T. Alpak for SEM studies.

Funders	Funder number
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu	111M455

Keywords

In vivo evaluation
Spark plasma sintering
YSZ

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10.1016/j.msec.2014.03.041

Cite this

@article{a8d44517a93d40abbdfafa4e9c33ecff,

title = "Spark plasma sintered Al2O3-YSZ-TiO2 composites: Processing, characterization and in vivo evaluation",

abstract = "Al2O3 and Al2O3-YSZ composites containing 3 and 5 wt.\% TiO2 were prepared by spark plasma sintering at temperatures of 1350-1400 °C for 300 s under a pressure of 40 MPa. The grain growth of alumina was suppressed by the addition of YSZ. Al 2O3-YSZ composites showed higher hardness than monolithic Al2O3. There was not a considerable difference in hardness values for Al2O3-YSZ composites containing 10 and 20 vol.\% YSZ and the addition of TiO2 decreased the hardness of the composites. The fracture toughness of Al2O3 increased from 2.8 MPa·m1/2 to 4.3 MPa·m1/2 with the addition of 10 vol.\% YSZ, further addition resulted in higher fracture toughness values. The fracture toughness values were increased with TiO2 addition and the highest value of fracture toughness, 5.3 MPa·m 1/2, was achieved with the addition of 20 vol.\% YSZ and 5 wt.\% TiO2. Preliminary in vivo tests demonstrated the biocompatibility and osseointegration of the composites after 6 week post-implantation in femur of Wistar rats.",

keywords = "In vivo evaluation, Spark plasma sintering, YSZ",

author = "Ozden Ormanci and Ipek Akin and Filiz Sahin and Onuralp Yucel and Viorica Simon and Simona Cavalu and Gultekin Goller",

year = "2014",

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T2 - Processing, characterization and in vivo evaluation

AU - Ormanci, Ozden

AU - Akin, Ipek

AU - Sahin, Filiz

AU - Yucel, Onuralp

AU - Simon, Viorica

AU - Cavalu, Simona

AU - Goller, Gultekin

PY - 2014/7/1

Y1 - 2014/7/1

N2 - Al2O3 and Al2O3-YSZ composites containing 3 and 5 wt.% TiO2 were prepared by spark plasma sintering at temperatures of 1350-1400 °C for 300 s under a pressure of 40 MPa. The grain growth of alumina was suppressed by the addition of YSZ. Al 2O3-YSZ composites showed higher hardness than monolithic Al2O3. There was not a considerable difference in hardness values for Al2O3-YSZ composites containing 10 and 20 vol.% YSZ and the addition of TiO2 decreased the hardness of the composites. The fracture toughness of Al2O3 increased from 2.8 MPa·m1/2 to 4.3 MPa·m1/2 with the addition of 10 vol.% YSZ, further addition resulted in higher fracture toughness values. The fracture toughness values were increased with TiO2 addition and the highest value of fracture toughness, 5.3 MPa·m 1/2, was achieved with the addition of 20 vol.% YSZ and 5 wt.% TiO2. Preliminary in vivo tests demonstrated the biocompatibility and osseointegration of the composites after 6 week post-implantation in femur of Wistar rats.

AB - Al2O3 and Al2O3-YSZ composites containing 3 and 5 wt.% TiO2 were prepared by spark plasma sintering at temperatures of 1350-1400 °C for 300 s under a pressure of 40 MPa. The grain growth of alumina was suppressed by the addition of YSZ. Al 2O3-YSZ composites showed higher hardness than monolithic Al2O3. There was not a considerable difference in hardness values for Al2O3-YSZ composites containing 10 and 20 vol.% YSZ and the addition of TiO2 decreased the hardness of the composites. The fracture toughness of Al2O3 increased from 2.8 MPa·m1/2 to 4.3 MPa·m1/2 with the addition of 10 vol.% YSZ, further addition resulted in higher fracture toughness values. The fracture toughness values were increased with TiO2 addition and the highest value of fracture toughness, 5.3 MPa·m 1/2, was achieved with the addition of 20 vol.% YSZ and 5 wt.% TiO2. Preliminary in vivo tests demonstrated the biocompatibility and osseointegration of the composites after 6 week post-implantation in femur of Wistar rats.

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