Relation between aggregation and heterogeneity of obtained structure in sol-gel derived CaO-P2O5-SiO2

Mika Jokinen; Hanna Rahiala; Jarl B. Rosenholm; Timo Peltola; Ilkka Kangasniemi

doi:10.1023/A:1008642117227

Relation between aggregation and heterogeneity of obtained structure in sol-gel derived CaO-P2O5-SiO2

Mika Jokinen, Hanna Rahiala, Jarl B. Rosenholm, Timo Peltola, Ilkka Kangasniemi

Laboratory of Molecular Science and Engineering

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

49 Citations (Scopus)

Abstract

Potentially bioactive sol-gel derived CaO-P2O 5-SiO2 systems are studied and the influence of aggregation mechanism on the gel structure is discussed. A rheological measuring technique is used to monitor the aggregation process and the results are related to heterogeneity of the obtained gel structure. The results indicate that heterogeneity is produced in the sol-gel transition when calcium nitrate and phosphoric acid are used as precursors of CaO and P 2O5. This destroys the correlation between bioactivity and the calcium and phosphorus content of the gel derived glasses.

Original language	English
Pages (from-to)	159-167
Number of pages	9
Journal	Journal of Sol-Gel Science and Technology
Volume	12
Issue number	3
DOIs	https://doi.org/10.1023/A:1008642117227
Publication status	Published - Nov 1998
MoE publication type	A1 Journal article-refereed

Keywords

Aggregation
Bioceramics
Rheology
Sol-gel
Structure

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10.1023/A:1008642117227

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abstract = "Potentially bioactive sol-gel derived CaO-P2O 5-SiO2 systems are studied and the influence of aggregation mechanism on the gel structure is discussed. A rheological measuring technique is used to monitor the aggregation process and the results are related to heterogeneity of the obtained gel structure. The results indicate that heterogeneity is produced in the sol-gel transition when calcium nitrate and phosphoric acid are used as precursors of CaO and P 2O5. This destroys the correlation between bioactivity and the calcium and phosphorus content of the gel derived glasses.",

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author = "Mika Jokinen and Hanna Rahiala and Rosenholm, {Jarl B.} and Timo Peltola and Ilkka Kangasniemi",

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AU - Jokinen, Mika

AU - Rahiala, Hanna

AU - Rosenholm, Jarl B.

AU - Peltola, Timo

AU - Kangasniemi, Ilkka

PY - 1998/11

Y1 - 1998/11

N2 - Potentially bioactive sol-gel derived CaO-P2O 5-SiO2 systems are studied and the influence of aggregation mechanism on the gel structure is discussed. A rheological measuring technique is used to monitor the aggregation process and the results are related to heterogeneity of the obtained gel structure. The results indicate that heterogeneity is produced in the sol-gel transition when calcium nitrate and phosphoric acid are used as precursors of CaO and P 2O5. This destroys the correlation between bioactivity and the calcium and phosphorus content of the gel derived glasses.

AB - Potentially bioactive sol-gel derived CaO-P2O 5-SiO2 systems are studied and the influence of aggregation mechanism on the gel structure is discussed. A rheological measuring technique is used to monitor the aggregation process and the results are related to heterogeneity of the obtained gel structure. The results indicate that heterogeneity is produced in the sol-gel transition when calcium nitrate and phosphoric acid are used as precursors of CaO and P 2O5. This destroys the correlation between bioactivity and the calcium and phosphorus content of the gel derived glasses.

KW - Aggregation

KW - Bioceramics

KW - Rheology

KW - Sol-gel

KW - Structure

UR - https://www.mendeley.com/catalogue/51b0079a-d042-3cb3-b9d1-c8045e90be1f/

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M3 - Article

SN - 0928-0707

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EP - 167

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 3

ER -

Relation between aggregation and heterogeneity of obtained structure in sol-gel derived CaO-P2O5-SiO2

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Keywords

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