Efecto de la composición y estructura química de la matriz cerámica en la coloración de nanocompósitos NTC/caolín y NTC/mullita

Elda M.  Lozada-Ascencio; Felipe  Legorret-García; Leticia E.  Hernández Cruz; C.  Flores-Segura

doi:10.29057/aactm.v1i1.9946

Elda M. Lozada-Ascencio Universidad Autónoma del Estado de Hidalgo
Felipe Legorret-García Universidad Autónoma del Estado de Hidalgo https://orcid.org/0000-0001-6968-199X
Leticia E. Hernández Cruz Universidad Autónoma del Estado de Hidalgo
C. Flores-Segura Universidad Autónoma del Estado de Hidalgo

DOI: https://doi.org/10.29057/aactm.v1i1.9946

Keywords: Structure, nanocomposites, ceramics

Abstract

Ceramic matrix composites were synthesized from mined kaolin and mullite with previously purified commercial carbon nanotubes (CNT), which showed different coloration, which was associated with the composition and chemical structure of the precursor ceramic materials, which were determined by powder X-ray diffraction (XRD), inductively coupled plasma (ICP), and infrared (IR) spectroscopy. The mine kaolin presented the existence of silica (SiO2) in the form of quartz and cristobalite, which were dispersed with sodium hexametaphosphate, while the mullite only presented SiO2 in the form of cristobalite as part of its impurities. From the displacement of the vibration modes, attributed to the stretching of the surface Si-O bonds present in the ceramics, it was determined that cristobalite has a greater bond strength, so when preparing the nanocomposites with CNT, a greater NTC-ceramic interaction, which is reflected in the grayish color of the NTC/mullite nanocomposite.

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References

1. H. Schneider, S. Komarneni, “Crystal chemistry of mullite and related phases” in Mullite (Ed. Wiley-VCH, 2005) Chapter 1, pp. 1-5.
2. P. F. Becher, “Microstructural design of toughened ceramics”, J. Amer. Ceram. Soc., Vol. 74, 2, 1991, pp. 255 -269.
3. P. H. Cury-Camargo, K. G. Satyanarayana, F. Wypych, “Nanocomposites: Synthesis, Structure, Applications and New Opportunities”, Mater. Res., Vol. 12, 1, 2009, pp. 1-39.
4. V. N. Popov, “Carbon nanotubes: properties and application”, Mater. Sci. Eng., Vol. 43, 2004,pp. 61-102.
5. A. R. Boccaccini, D. R. Acevedo, G. Brusatin, P. Colombo, “Borosilicate glass matrix composites containing multi-wall carbon nanotubes”, J. Europ. Ceram. Soc., Vol. 25, 2005, pp.1515-1523.
6. A. R. Boccaccini, “Nanotubos de carbono en materiales cerámicos: ¿curiosidad académica o materiales útiles”, Cerámica y cristal, Vol. 140, 2005, pp. 54-62.
7. F. Legorreta-García, V. E. Hernández-Cruz, P. F. Mata-Muñoz, Rev. Latinoam. Metal. Mat., pp. 308-315.
8. H. Wang, C. Li, Z. Peng, S. Zhang, S. “Characterization and thermal behavior of kaolin”, J. Therm. Anal. Calorim., Vol. 105, 2011, pp. 157-160.
9. B. Davarcioglu, “Kolsuz-Ulukisla-Nigde Clays, Central Anatolian Region – Turkey and Petroleum Exploration”, in Clay Minerals in Nature – Their Characterization, Modification and Application, (Intech, New York, 2012) pp. 39-54. 96.
10. V. C. Farmer, “Transverse and longitudinal crystal modes associated with OH stretching vibration in single crystals of kaolinite and dickite”, Spectrochim Acta A, Vol. 56, 2000, pp. 927-930.