Synthesis, structural, spectroscopic and thermoanalytical study of sol-gel derived SiO2-CaO-P2O5 gel and ceramic materials
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- 作者：Michelina Catauroa ; michelina.catauro@unina2.it" class="auth_mail" title="E-mail the corresponding author ; Alessandro Dell&rsquo ; Erab ; Stefano Vecchio Cipriotic ; stefano.vecchio@uniroma1.it" class="auth_mail" title="E-mail the corresponding author
- 关键词：Sol&ndash ; gel method ; SiO2&ndash ; CaO&ndash ; P2O5 ; TG/DTA ; FTIR ; XRD ; SEM/EDS ; Crystallization ; Pseudowollastonite ; Wollastonite
- 刊名：Thermochimica Acta
- 出版年：2016
- 出版时间：10 February 2016
- 年：2016
- 卷：625
- 期：Complete
- 页码：20-27
- 全文大小：2060 K
文摘
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Four different SiO2–CaO–P2O5 gel-glasses were synthesized by the sol–gel method.
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FTIR, XRD, SEM-EDS and TG/DTA techniques were used to fully characterize the gels.
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Integral isoconversional OFW method was used to study dehydration kinetics.
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Appropriate temperatures of 600 and 1200 °C were chosen to thermally treat them.
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All amorphous gels at 1200 °C crystallize as wollastonite and pseudowollastonite.