Fabrication of micro-scale porous surfaces for Mg-based implants

Aydin Tahmasebifar; Said Murat Kayhan; Zafer Evis; Yusuf Usta; Muammer Koç

Fabrication of micro-scale porous surfaces for Mg-based implants

Aydin Tahmasebifar, Said Murat Kayhan, Zafer Evis, Yusuf Usta, Muammer Koç^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this study, Mg-based biomedical implant plates with controlled porosity and micro-textured surface were designed and manufactured. AZ91 Mg powders of different size distribution were compacted under compaction pressures of 150 and 200 MPa and compaction temperatures of 100 and 150°C. Compacted green plates were then sintered at 380 and 420°C for 40, 60, 120 and 150 minutes. Different aging schemes were also tested, such as aging temperatures of 100 and 200°C and aging time of 60 and 120 minutes. The main interest was to determine an optimum pressure, temperature and time to produce Mg implant plates with necessary levels of porosity and strength. The feasibility study results showed that compaction load has a significant effect on the achievable porosity. Porosity of plates decreases with increasing the compaction pressure. In compaction stage, suggested temperature must be higher than 100°C to ensure strong bonding among Mg powders. In addition, the inert environment is necessary to prevent oxidation during heat treatment. Finally, there is no significant difference between micro-hardness values after sintering in temperatures below eutectic temperature.

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Publisher	Association for Iron and Steel Technology, AISTECH
Pages	87-105
Number of pages	19
ISBN (Electronic)	9781634397230
Publication status	Published - 2014
Externally published	Yes
Event	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 - Pittsburgh, United States Duration: 12 Oct 2014 → 16 Oct 2014

Publication series

Name	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Volume	1

Conference

Conference	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Country/Territory	United States
City	Pittsburgh
Period	12/10/14 → 16/10/14

Keywords

Biomedical
Implant
Magnesium powder
Micro-manufacturing
Porous surface

Cite this

Tahmasebifar, A., Kayhan, S. M., Evis, Z., Usta, Y., & Koç, M. (2014). Fabrication of micro-scale porous surfaces for Mg-based implants. In Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 (pp. 87-105). (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014; Vol. 1). Association for Iron and Steel Technology, AISTECH.

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title = "Fabrication of micro-scale porous surfaces for Mg-based implants",

abstract = "In this study, Mg-based biomedical implant plates with controlled porosity and micro-textured surface were designed and manufactured. AZ91 Mg powders of different size distribution were compacted under compaction pressures of 150 and 200 MPa and compaction temperatures of 100 and 150°C. Compacted green plates were then sintered at 380 and 420°C for 40, 60, 120 and 150 minutes. Different aging schemes were also tested, such as aging temperatures of 100 and 200°C and aging time of 60 and 120 minutes. The main interest was to determine an optimum pressure, temperature and time to produce Mg implant plates with necessary levels of porosity and strength. The feasibility study results showed that compaction load has a significant effect on the achievable porosity. Porosity of plates decreases with increasing the compaction pressure. In compaction stage, suggested temperature must be higher than 100°C to ensure strong bonding among Mg powders. In addition, the inert environment is necessary to prevent oxidation during heat treatment. Finally, there is no significant difference between micro-hardness values after sintering in temperatures below eutectic temperature.",

keywords = "Biomedical, Implant, Magnesium powder, Micro-manufacturing, Porous surface",

author = "Aydin Tahmasebifar and Kayhan, \{Said Murat\} and Zafer Evis and Yusuf Usta and Muammer Ko{\c c}",

note = "Publisher Copyright: Copyright {\textcopyright} 2014 MS\&T14{\textregistered}.; Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 ; Conference date: 12-10-2014 Through 16-10-2014",

year = "2014",

language = "English",

series = "Materials Science and Technology Conference and Exhibition 2014, MS and T 2014",

publisher = "Association for Iron and Steel Technology, AISTECH",

pages = "87--105",

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address = "United States",

}

Tahmasebifar, A, Kayhan, SM, Evis, Z, Usta, Y & Koç, M 2014, Fabrication of micro-scale porous surfaces for Mg-based implants. in Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Materials Science and Technology Conference and Exhibition 2014, MS and T 2014, vol. 1, Association for Iron and Steel Technology, AISTECH, pp. 87-105, Materials Science and Technology Conference and Exhibition 2014, MS and T 2014, Pittsburgh, United States, 12/10/14.

Fabrication of micro-scale porous surfaces for Mg-based implants. / Tahmasebifar, Aydin; Kayhan, Said Murat; Evis, Zafer et al.
Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Association for Iron and Steel Technology, AISTECH, 2014. p. 87-105 (Materials Science and Technology Conference and Exhibition 2014, MS and T 2014; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Fabrication of micro-scale porous surfaces for Mg-based implants

AU - Tahmasebifar, Aydin

AU - Kayhan, Said Murat

AU - Evis, Zafer

AU - Usta, Yusuf

AU - Koç, Muammer

PY - 2014

Y1 - 2014

N2 - In this study, Mg-based biomedical implant plates with controlled porosity and micro-textured surface were designed and manufactured. AZ91 Mg powders of different size distribution were compacted under compaction pressures of 150 and 200 MPa and compaction temperatures of 100 and 150°C. Compacted green plates were then sintered at 380 and 420°C for 40, 60, 120 and 150 minutes. Different aging schemes were also tested, such as aging temperatures of 100 and 200°C and aging time of 60 and 120 minutes. The main interest was to determine an optimum pressure, temperature and time to produce Mg implant plates with necessary levels of porosity and strength. The feasibility study results showed that compaction load has a significant effect on the achievable porosity. Porosity of plates decreases with increasing the compaction pressure. In compaction stage, suggested temperature must be higher than 100°C to ensure strong bonding among Mg powders. In addition, the inert environment is necessary to prevent oxidation during heat treatment. Finally, there is no significant difference between micro-hardness values after sintering in temperatures below eutectic temperature.

AB - In this study, Mg-based biomedical implant plates with controlled porosity and micro-textured surface were designed and manufactured. AZ91 Mg powders of different size distribution were compacted under compaction pressures of 150 and 200 MPa and compaction temperatures of 100 and 150°C. Compacted green plates were then sintered at 380 and 420°C for 40, 60, 120 and 150 minutes. Different aging schemes were also tested, such as aging temperatures of 100 and 200°C and aging time of 60 and 120 minutes. The main interest was to determine an optimum pressure, temperature and time to produce Mg implant plates with necessary levels of porosity and strength. The feasibility study results showed that compaction load has a significant effect on the achievable porosity. Porosity of plates decreases with increasing the compaction pressure. In compaction stage, suggested temperature must be higher than 100°C to ensure strong bonding among Mg powders. In addition, the inert environment is necessary to prevent oxidation during heat treatment. Finally, there is no significant difference between micro-hardness values after sintering in temperatures below eutectic temperature.

KW - Biomedical

KW - Implant

KW - Magnesium powder

KW - Micro-manufacturing

KW - Porous surface

UR - https://www.scopus.com/pages/publications/84925663029

M3 - Conference contribution

AN - SCOPUS:84925663029

T3 - Materials Science and Technology Conference and Exhibition 2014, MS and T 2014

SP - 87

EP - 105

BT - Materials Science and Technology Conference and Exhibition 2014, MS and T 2014

PB - Association for Iron and Steel Technology, AISTECH

T2 - Materials Science and Technology Conference and Exhibition 2014, MS and T 2014

Y2 - 12 October 2014 through 16 October 2014

ER -

Fabrication of micro-scale porous surfaces for Mg-based implants

Abstract

Publication series

Conference

Keywords

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