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A New and Economic Approach to Synthesize and Fabricate Bioactive Diopside Ceramics Using a Modified Domestic Microwave Oven. Part 1: Study of Sintering and Bioactivity
Author(s) -
Harabi Abdelhamid,
Zouai Souheila
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12047
Subject(s) - diopside , sintering , materials science , ceramic , crystallization , chemical engineering , fabrication , mineralogy , nuclear chemistry , composite material , chemistry , medicine , alternative medicine , pathology , engineering
Diopside ( C a M g S i 2 O 6 ) ceramics was synthesized and fabricated by a simple solid‐state reaction rather than other used processes. This new and economic approach for diopside fabrication consists mainly of replacing the usually used starting materials by other more economic (activated C a O · M g O powders), using conventional sintering and microwave sintering. The P 2 O 5 addition (0.5–5.0 wt%) promotes sintering, crystallization, and bioactivity. Additionally, a considerably low weight loss ratio (0.21%) was also obtained for these samples, after 2 days of soaking in lactic acid. Carbonated hydroxyapatite ( CHA ) formation in simulated body fluid was confirmed for all sintered samples. Both sintering and CHA formation mechanisms were proposed.