Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

Variations of structure and composition in magnesium incorporated hydroxyapatite/β-tricalcium phosphate

Ryu, HS and Hong, KS and Lee, JK and Kim, DJ (2006) Variations of structure and composition in magnesium incorporated hydroxyapatite/β-tricalcium phosphate. Journal of Materials Research, 21 (2). 428 - 436. ISSN 0884-2914

[img] Plain Text (licence)
Available under License : See the attached license file.

Download (1kB)

Abstract

The phase evolution of magnesium incorporated hydroxyapatite/ β-tricalcium phosphate (HA/β-TCP) ceramics of high purity prepared by solid-state reaction was investigated with the aid of x-ray diffraction and infrared spectroscopy (IR) in transmittance mode analysis. The dependence of the microstructure on the phase evolution of biphasic ceramics during natural sintering was also investigated as a function of Mg content. When sintered at 1100 °C, Mg is preferentially incorporated into the β-TCP phase rather than the HA phase. This Mg incorporation into the β-TCP effectively suppresses the phase transition from β- to α-TCP. With increasing sintering temperature, the solubility limit of the Mg in the β-TCP decreases and Mg starts to be either incorporated into the HA phase or segregated as free MgO. The decreased Mg content in the β-TCP facilitates the phase transition from β- into α-TCP, at 1300 °C or higher. Different processing methods on Mg addition show that the retarded phase transition from β- to α-TCP is the inherent property of Mg-doped HA/TCP. The variations in processing parameters mainly affect the microstructure instead of the phase evolution, leading to highly densified HA/β-TCP ceramics. © 2006 Materials Research Society.


Share

Citation/Export:
Social Networking:
Share |

Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Ryu, HS
Hong, KS
Lee, JKjul37@pitt.eduJUL370000-0002-7778-7679
Kim, DJ
Centers: Other Centers, Institutes, Offices, or Units > Petersen Institute of NanoScience and Engineering
Date: 1 February 2006
Date Type: Publication
Journal or Publication Title: Journal of Materials Research
Volume: 21
Number: 2
Page Range: 428 - 436
DOI or Unique Handle: 10.1557/jmr.2006.0049
Schools and Programs: Swanson School of Engineering > Mechanical Engineering and Materials Science
Refereed: Yes
ISSN: 0884-2914
Date Deposited: 18 Nov 2014 16:02
Last Modified: 05 Feb 2019 19:55
URI: http://d-scholarship.pitt.edu/id/eprint/23478

Metrics

Monthly Views for the past 3 years

Plum Analytics

Altmetric.com


Actions (login required)

View Item View Item