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MgO–Na 2 O–P 2 O 5 ‐Based Sintering Additives for Tricalcium Phosphate Bioceramics
Author(s) -
Kalita Samar J.,
Bhatt Himesh A.,
Dhamne Abhijeet
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00854.x
Subject(s) - microstructure , sintering , materials science , scanning electron microscope , ceramic , composite material , phosphate , compressive strength , degradation (telecommunications) , chemical engineering , chemistry , organic chemistry , telecommunications , computer science , engineering
Effects of MgO–Na 2 O–P 2 O 5 ‐based sintering additives on densification, microstructure, hardness, compression strength, and biodegradability of β‐tricalcium phosphate (β‐TCP) ceramics were studied. Three additive compositions were prepared and introduced into β‐TCP. Uniaxially compacted ceramic structures, sintered at 1250°C in air, were characterized. Scanning electron microscopy was used to study the microstructure. The X‐ray diffraction technique was used for phase analysis. Results showed that these additives modified the microstructure and improved the sintered density and mechanical properties. An increase of 9% in density, 40% in hardness and 38% in compression strength were achieved. Biodegradation analysis revealed that these additives could tailor the rate of resorption and hardness degradation of β‐TCP.