Highly porous hydroxyapatite bioceramics with interconnected pore channels using camphene-based freeze casting

Eun Jung Lee; Young Hag Koh; Byung Ho Yoon; Hyoun Ee Kim; Hae Won Kim

doi:10.1016/j.matlet.2006.08.065

Highly porous hydroxyapatite bioceramics with interconnected pore channels using camphene-based freeze casting

Eun Jung Lee, Young Hag Koh, Byung Ho Yoon, Hyoun Ee Kim, Hae Won Kim

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

128 Citations (Scopus)

Abstract

We fabricated highly porous hydroxyapatite (HA) bioceramics using the camphene-based freeze casting method. In this method, HA/camphene slurries with various HA contents (10, 15, and 20 vol.%) were prepared by ball-milling at 60 °C and then cast into a mold at room-temperature. This method allowed the fabricated sample to have completely interconnected pore channels by removing the frozen camphene network via sublimation and dense HA walls by sintering the highly packed HA powder networks at 1250 °C for 3 h. As the initial HA content was increased from 10 to 20 vol.%, the porosity decreased from 75 to 56%, while the compressive strength remarkably increased from 0.94 to 17 MPa.

Original language	English
Pages (from-to)	2270-2273
Number of pages	4
Journal	Materials Letters
Volume	61
Issue number	11-12
DOIs	https://doi.org/10.1016/j.matlet.2006.08.065
Publication status	Published - 2007 May
Externally published	Yes

Keywords

Bioceramics
Freeze casting
Hydroxyapatite
Porous
Strength

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2006.08.065

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title = "Highly porous hydroxyapatite bioceramics with interconnected pore channels using camphene-based freeze casting",

abstract = "We fabricated highly porous hydroxyapatite (HA) bioceramics using the camphene-based freeze casting method. In this method, HA/camphene slurries with various HA contents (10, 15, and 20 vol.%) were prepared by ball-milling at 60 °C and then cast into a mold at room-temperature. This method allowed the fabricated sample to have completely interconnected pore channels by removing the frozen camphene network via sublimation and dense HA walls by sintering the highly packed HA powder networks at 1250 °C for 3 h. As the initial HA content was increased from 10 to 20 vol.%, the porosity decreased from 75 to 56%, while the compressive strength remarkably increased from 0.94 to 17 MPa.",

keywords = "Bioceramics, Freeze casting, Hydroxyapatite, Porous, Strength",

author = "Lee, {Eun Jung} and Koh, {Young Hag} and Yoon, {Byung Ho} and Kim, {Hyoun Ee} and Kim, {Hae Won}",

note = "Funding Information: This research was supported by a grant (code no.: 05K1501-01510) from the “Center for Nanostructured Materials Technology” under the “21st Century Frontier R&D Programs” of the Ministry of Science and Technology, Korea. ",

year = "2007",

month = may,

doi = "10.1016/j.matlet.2006.08.065",

language = "English",

volume = "61",

pages = "2270--2273",

journal = "Materials Letters",

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publisher = "Elsevier",

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TY - JOUR

T1 - Highly porous hydroxyapatite bioceramics with interconnected pore channels using camphene-based freeze casting

AU - Lee, Eun Jung

AU - Koh, Young Hag

AU - Yoon, Byung Ho

AU - Kim, Hyoun Ee

AU - Kim, Hae Won

N1 - Funding Information: This research was supported by a grant (code no.: 05K1501-01510) from the “Center for Nanostructured Materials Technology” under the “21st Century Frontier R&D Programs” of the Ministry of Science and Technology, Korea.

PY - 2007/5

Y1 - 2007/5

N2 - We fabricated highly porous hydroxyapatite (HA) bioceramics using the camphene-based freeze casting method. In this method, HA/camphene slurries with various HA contents (10, 15, and 20 vol.%) were prepared by ball-milling at 60 °C and then cast into a mold at room-temperature. This method allowed the fabricated sample to have completely interconnected pore channels by removing the frozen camphene network via sublimation and dense HA walls by sintering the highly packed HA powder networks at 1250 °C for 3 h. As the initial HA content was increased from 10 to 20 vol.%, the porosity decreased from 75 to 56%, while the compressive strength remarkably increased from 0.94 to 17 MPa.

AB - We fabricated highly porous hydroxyapatite (HA) bioceramics using the camphene-based freeze casting method. In this method, HA/camphene slurries with various HA contents (10, 15, and 20 vol.%) were prepared by ball-milling at 60 °C and then cast into a mold at room-temperature. This method allowed the fabricated sample to have completely interconnected pore channels by removing the frozen camphene network via sublimation and dense HA walls by sintering the highly packed HA powder networks at 1250 °C for 3 h. As the initial HA content was increased from 10 to 20 vol.%, the porosity decreased from 75 to 56%, while the compressive strength remarkably increased from 0.94 to 17 MPa.

KW - Bioceramics

KW - Freeze casting

KW - Hydroxyapatite

KW - Porous

KW - Strength

UR - http://www.scopus.com/inward/record.url?scp=34147186094&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2006.08.065

DO - 10.1016/j.matlet.2006.08.065

M3 - Article

AN - SCOPUS:34147186094

SN - 0167-577X

VL - 61

SP - 2270

EP - 2273

JO - Materials Letters

JF - Materials Letters

IS - 11-12

ER -

Highly porous hydroxyapatite bioceramics with interconnected pore channels using camphene-based freeze casting

Abstract

Keywords

ASJC Scopus subject areas

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