Effect of cooling rate and particle size on compressive strength of macroporous hydroxyapatite

Y. U. Kim; B. H. Lee; M. C. Kim; K. N. Kim; K. M. Kim; S. H. Choi; C. K. Kim; R. Z. LeGeros; Y. K. Lee

doi:10.4028/0-87849-992-x.1047

Effect of cooling rate and particle size on compressive strength of macroporous hydroxyapatite

Y. U. Kim, B. H. Lee, M. C. Kim, K. N. Kim, K. M. Kim, S. H. Choi, C. K. Kim, R. Z. LeGeros, Y. K. Lee

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

2 Citations (Scopus)

Abstract

The objective of this study was to produce a macroporous hydroxyapatite(HA) scaffold with high strength by controlling the size of HA particles as well as cooling rate from the sintering temperature. Macroporous polyurethane sponge was employed as template to manufacture the macroporous HA scaffolds. Particle sizes of HA powders selected in this study were 4 μm and 7 μm. They were dispersed in distilled water with organic additives and infiltrated into polyurethane sponge. After drying and sintering at 1300°C, cooled down to room temperature slowly to prevent microcracking either 1°C/min or 3°C/min. Density, porosity and compressive strength were measured with different particle size and cooling rate. Both density and compressive strength were increased with decreasing particle size or cooling rate, while porosity was not related to.

Original language	English
Pages (from-to)	1047-1050
Number of pages	4
Journal	Key Engineering Materials
Volume	309-311 II
DOIs	https://doi.org/10.4028/0-87849-992-x.1047
Publication status	Published - 2006

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.4028/0-87849-992-x.1047

Cite this

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title = "Effect of cooling rate and particle size on compressive strength of macroporous hydroxyapatite",

abstract = "The objective of this study was to produce a macroporous hydroxyapatite(HA) scaffold with high strength by controlling the size of HA particles as well as cooling rate from the sintering temperature. Macroporous polyurethane sponge was employed as template to manufacture the macroporous HA scaffolds. Particle sizes of HA powders selected in this study were 4 μm and 7 μm. They were dispersed in distilled water with organic additives and infiltrated into polyurethane sponge. After drying and sintering at 1300°C, cooled down to room temperature slowly to prevent microcracking either 1°C/min or 3°C/min. Density, porosity and compressive strength were measured with different particle size and cooling rate. Both density and compressive strength were increased with decreasing particle size or cooling rate, while porosity was not related to.",

author = "Kim, {Y. U.} and Lee, {B. H.} and Kim, {M. C.} and Kim, {K. N.} and Kim, {K. M.} and Choi, {S. H.} and Kim, {C. K.} and LeGeros, {R. Z.} and Lee, {Y. K.}",

year = "2006",

doi = "10.4028/0-87849-992-x.1047",

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AU - Kim, Y. U.

AU - Lee, B. H.

AU - Kim, M. C.

AU - Kim, K. N.

AU - Kim, K. M.

AU - Choi, S. H.

AU - Kim, C. K.

AU - LeGeros, R. Z.

AU - Lee, Y. K.

PY - 2006

Y1 - 2006

N2 - The objective of this study was to produce a macroporous hydroxyapatite(HA) scaffold with high strength by controlling the size of HA particles as well as cooling rate from the sintering temperature. Macroporous polyurethane sponge was employed as template to manufacture the macroporous HA scaffolds. Particle sizes of HA powders selected in this study were 4 μm and 7 μm. They were dispersed in distilled water with organic additives and infiltrated into polyurethane sponge. After drying and sintering at 1300°C, cooled down to room temperature slowly to prevent microcracking either 1°C/min or 3°C/min. Density, porosity and compressive strength were measured with different particle size and cooling rate. Both density and compressive strength were increased with decreasing particle size or cooling rate, while porosity was not related to.

AB - The objective of this study was to produce a macroporous hydroxyapatite(HA) scaffold with high strength by controlling the size of HA particles as well as cooling rate from the sintering temperature. Macroporous polyurethane sponge was employed as template to manufacture the macroporous HA scaffolds. Particle sizes of HA powders selected in this study were 4 μm and 7 μm. They were dispersed in distilled water with organic additives and infiltrated into polyurethane sponge. After drying and sintering at 1300°C, cooled down to room temperature slowly to prevent microcracking either 1°C/min or 3°C/min. Density, porosity and compressive strength were measured with different particle size and cooling rate. Both density and compressive strength were increased with decreasing particle size or cooling rate, while porosity was not related to.

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JF - Key Engineering Materials

ER -

Effect of cooling rate and particle size on compressive strength of macroporous hydroxyapatite

Abstract

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