RF induction plasma synthesized calcium phosphate nanoparticles

J. L. Xu; K. A. Khor; R. Kumar; P. Cheang

doi:10.4028/0-87849-992-x.511

RF induction plasma synthesized calcium phosphate nanoparticles

J. L. Xu, K. A. Khor^*, R. Kumar, P. Cheang

^*Corresponding author for this work

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

8 Citations (Scopus)

Abstract

It was a normal phenomena that hydroxyapatite (HA) decomposes into tricalcium phosphate (TCP), tetracalcium phosphate (TTCP), calcium oxide (CaO) and amorphous calcium phosphate (ACP) during the plasma processing step. The present study characterized the phase evolution of calcium phosphates (CaPs) in the nanoparticles synthesized using a radio frequency (RF) induction plasma processing technique. The morphology and microstructure of the CaP nanoparticles were investigated by XRD, SEM, TEM, Raman spectroscopy, FTIR spectroscopy and thermal analysis. It was found that ACP, α-TCP, TTCP and CaO were the main decomposed phases in the nanoparticle. After heat treatment at 800°C for 3 hrs in air, the ACP mainly crystallized into dicalcium pyrophosphate (β-Ca₂P₂O₇) due to the extreme decomposition of the starting HA during the RF plasma processing step which rapidly solidified into amorphous phase.

Original language	English
Pages (from-to)	511-514
Number of pages	4
Journal	Key Engineering Materials
Volume	309-311 I
DOIs	https://doi.org/10.4028/0-87849-992-x.511
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Keywords

Decomposition
Heat treatment
Hydroxyapatite
Nano-particle
RF induction plasma

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10.4028/0-87849-992-x.511

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title = "RF induction plasma synthesized calcium phosphate nanoparticles",

abstract = "It was a normal phenomena that hydroxyapatite (HA) decomposes into tricalcium phosphate (TCP), tetracalcium phosphate (TTCP), calcium oxide (CaO) and amorphous calcium phosphate (ACP) during the plasma processing step. The present study characterized the phase evolution of calcium phosphates (CaPs) in the nanoparticles synthesized using a radio frequency (RF) induction plasma processing technique. The morphology and microstructure of the CaP nanoparticles were investigated by XRD, SEM, TEM, Raman spectroscopy, FTIR spectroscopy and thermal analysis. It was found that ACP, α-TCP, TTCP and CaO were the main decomposed phases in the nanoparticle. After heat treatment at 800°C for 3 hrs in air, the ACP mainly crystallized into dicalcium pyrophosphate (β-Ca2P2O7) due to the extreme decomposition of the starting HA during the RF plasma processing step which rapidly solidified into amorphous phase.",

keywords = "Decomposition, Heat treatment, Hydroxyapatite, Nano-particle, RF induction plasma",

author = "Xu, {J. L.} and Khor, {K. A.} and R. Kumar and P. Cheang",

year = "2006",

doi = "10.4028/0-87849-992-x.511",

language = "English",

volume = "309-311 I",

pages = "511--514",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications",

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TY - JOUR

T1 - RF induction plasma synthesized calcium phosphate nanoparticles

AU - Xu, J. L.

AU - Khor, K. A.

AU - Kumar, R.

AU - Cheang, P.

PY - 2006

Y1 - 2006

N2 - It was a normal phenomena that hydroxyapatite (HA) decomposes into tricalcium phosphate (TCP), tetracalcium phosphate (TTCP), calcium oxide (CaO) and amorphous calcium phosphate (ACP) during the plasma processing step. The present study characterized the phase evolution of calcium phosphates (CaPs) in the nanoparticles synthesized using a radio frequency (RF) induction plasma processing technique. The morphology and microstructure of the CaP nanoparticles were investigated by XRD, SEM, TEM, Raman spectroscopy, FTIR spectroscopy and thermal analysis. It was found that ACP, α-TCP, TTCP and CaO were the main decomposed phases in the nanoparticle. After heat treatment at 800°C for 3 hrs in air, the ACP mainly crystallized into dicalcium pyrophosphate (β-Ca2P2O7) due to the extreme decomposition of the starting HA during the RF plasma processing step which rapidly solidified into amorphous phase.

AB - It was a normal phenomena that hydroxyapatite (HA) decomposes into tricalcium phosphate (TCP), tetracalcium phosphate (TTCP), calcium oxide (CaO) and amorphous calcium phosphate (ACP) during the plasma processing step. The present study characterized the phase evolution of calcium phosphates (CaPs) in the nanoparticles synthesized using a radio frequency (RF) induction plasma processing technique. The morphology and microstructure of the CaP nanoparticles were investigated by XRD, SEM, TEM, Raman spectroscopy, FTIR spectroscopy and thermal analysis. It was found that ACP, α-TCP, TTCP and CaO were the main decomposed phases in the nanoparticle. After heat treatment at 800°C for 3 hrs in air, the ACP mainly crystallized into dicalcium pyrophosphate (β-Ca2P2O7) due to the extreme decomposition of the starting HA during the RF plasma processing step which rapidly solidified into amorphous phase.

KW - Decomposition

KW - Heat treatment

KW - Hydroxyapatite

KW - Nano-particle

KW - RF induction plasma

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DO - 10.4028/0-87849-992-x.511

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VL - 309-311 I

SP - 511

EP - 514

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

RF induction plasma synthesized calcium phosphate nanoparticles

Abstract

ASJC Scopus Subject Areas

Keywords

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