Spark plasma sintered Ti6Al4V-ZrO2 bio-composites: Optimization of ball milling and turbula mixing of powders and their subsequent sintering parameters

N. A. Moshokoa, T. V. Mukhudwana, L. M. Raganya, J. I. Lekgoathi, B. A. Obadele, P. A. Olubambi

Research output: Contribution to journalConference article

Abstract

The use of Ti6Al4V as a biomaterial has been limited due to the dissociation of V and Al ions into the surrounding environment which can cause inflammations, cell damage and toxicity. To prohibit these undesirable challenges, the addition of ZrO 2 into Ti6Al4V was proposed because ZrO2 is biocompatible, it has good wear and corrosion resistant properties, it has low affinity to bacterial colonization and it has high fracture toughness. The aim of this work is to determine the optimum powder synthesising parameters by Tubular mixer and ball mill for fabrication of sintered composites. Powder mixtures were prepared by 49 rpm, 72 rpm and 74rpm for 2, 4 and 8 hours followed by spark plasma sintering at 1100°C at heating rate of 100°C/min for 10 min and pressure of 50 MPa. from the results obtained it was discovered that Tubular mixing of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 72 rpm and ball milling of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 74rpm speed have proved to produce homogeneous admixed powders, which can further produce fully dense SPS compacts with higher microhardness values.

Original languageEnglish
Article number012035
JournalIOP Conference Series: Materials Science and Engineering
Volume430
Issue number1
DOIs
Publication statusPublished - Oct 2 2018
Externally publishedYes
Event2018 Conference of the South African Advanced Materials Initiative, CoSAAMI 2018 - Vanderbijlpark, South Africa
Duration: Oct 23 2018Oct 26 2018

Fingerprint

Ball milling
Electric sparks
Powders
Sintering
Plasmas
Composite materials
Spark plasma sintering
Ball mills
Heating rate
Biomaterials
Microhardness
Toxicity
Fracture toughness
Biocompatible Materials
Cells
Wear of materials
Corrosion
Fabrication
Ions
titanium alloy (TiAl6V4)

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

@article{71ae1818fdb74df49b8a2d5ef9853d4e,
title = "Spark plasma sintered Ti6Al4V-ZrO2 bio-composites: Optimization of ball milling and turbula mixing of powders and their subsequent sintering parameters",
abstract = "The use of Ti6Al4V as a biomaterial has been limited due to the dissociation of V and Al ions into the surrounding environment which can cause inflammations, cell damage and toxicity. To prohibit these undesirable challenges, the addition of ZrO 2 into Ti6Al4V was proposed because ZrO2 is biocompatible, it has good wear and corrosion resistant properties, it has low affinity to bacterial colonization and it has high fracture toughness. The aim of this work is to determine the optimum powder synthesising parameters by Tubular mixer and ball mill for fabrication of sintered composites. Powder mixtures were prepared by 49 rpm, 72 rpm and 74rpm for 2, 4 and 8 hours followed by spark plasma sintering at 1100°C at heating rate of 100°C/min for 10 min and pressure of 50 MPa. from the results obtained it was discovered that Tubular mixing of 90 Vol{\%} Ti6Al4V and 10 Vol{\%} ZrO 2 at 72 rpm and ball milling of 90 Vol{\%} Ti6Al4V and 10 Vol{\%} ZrO 2 at 74rpm speed have proved to produce homogeneous admixed powders, which can further produce fully dense SPS compacts with higher microhardness values.",
author = "Moshokoa, {N. A.} and Mukhudwana, {T. V.} and Raganya, {L. M.} and Lekgoathi, {J. I.} and Obadele, {B. A.} and Olubambi, {P. A.}",
year = "2018",
month = "10",
day = "2",
doi = "10.1088/1757-899X/430/1/012035",
language = "English",
volume = "430",
journal = "IOP Conference Series: Materials Science and Engineering",
issn = "1757-8981",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Spark plasma sintered Ti6Al4V-ZrO2 bio-composites : Optimization of ball milling and turbula mixing of powders and their subsequent sintering parameters. / Moshokoa, N. A.; Mukhudwana, T. V.; Raganya, L. M.; Lekgoathi, J. I.; Obadele, B. A.; Olubambi, P. A.

In: IOP Conference Series: Materials Science and Engineering, Vol. 430, No. 1, 012035, 02.10.2018.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Spark plasma sintered Ti6Al4V-ZrO2 bio-composites

T2 - Optimization of ball milling and turbula mixing of powders and their subsequent sintering parameters

AU - Moshokoa, N. A.

AU - Mukhudwana, T. V.

AU - Raganya, L. M.

AU - Lekgoathi, J. I.

AU - Obadele, B. A.

AU - Olubambi, P. A.

PY - 2018/10/2

Y1 - 2018/10/2

N2 - The use of Ti6Al4V as a biomaterial has been limited due to the dissociation of V and Al ions into the surrounding environment which can cause inflammations, cell damage and toxicity. To prohibit these undesirable challenges, the addition of ZrO 2 into Ti6Al4V was proposed because ZrO2 is biocompatible, it has good wear and corrosion resistant properties, it has low affinity to bacterial colonization and it has high fracture toughness. The aim of this work is to determine the optimum powder synthesising parameters by Tubular mixer and ball mill for fabrication of sintered composites. Powder mixtures were prepared by 49 rpm, 72 rpm and 74rpm for 2, 4 and 8 hours followed by spark plasma sintering at 1100°C at heating rate of 100°C/min for 10 min and pressure of 50 MPa. from the results obtained it was discovered that Tubular mixing of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 72 rpm and ball milling of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 74rpm speed have proved to produce homogeneous admixed powders, which can further produce fully dense SPS compacts with higher microhardness values.

AB - The use of Ti6Al4V as a biomaterial has been limited due to the dissociation of V and Al ions into the surrounding environment which can cause inflammations, cell damage and toxicity. To prohibit these undesirable challenges, the addition of ZrO 2 into Ti6Al4V was proposed because ZrO2 is biocompatible, it has good wear and corrosion resistant properties, it has low affinity to bacterial colonization and it has high fracture toughness. The aim of this work is to determine the optimum powder synthesising parameters by Tubular mixer and ball mill for fabrication of sintered composites. Powder mixtures were prepared by 49 rpm, 72 rpm and 74rpm for 2, 4 and 8 hours followed by spark plasma sintering at 1100°C at heating rate of 100°C/min for 10 min and pressure of 50 MPa. from the results obtained it was discovered that Tubular mixing of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 72 rpm and ball milling of 90 Vol% Ti6Al4V and 10 Vol% ZrO 2 at 74rpm speed have proved to produce homogeneous admixed powders, which can further produce fully dense SPS compacts with higher microhardness values.

UR - http://www.scopus.com/inward/record.url?scp=85054786934&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054786934&partnerID=8YFLogxK

U2 - 10.1088/1757-899X/430/1/012035

DO - 10.1088/1757-899X/430/1/012035

M3 - Conference article

AN - SCOPUS:85054786934

VL - 430

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

SN - 1757-8981

IS - 1

M1 - 012035

ER -