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• W3017396044 abstract "Low-cost, dimensionally stable, and hard cordierite ceramic materials were prepared by reaction sintering two Algerian natural clay minerals and synthetic magnesia. The microstructure and hardness of the developed materials were characterized by a scanning electron microscope and a hardness tester, respectively. Differential thermal analysis, dilatometry, and Raman spectroscopy were used to analyze the transformation of phases and sintering behavior. The coefficient of thermal expansion (α) was determined from dilatometry experiments. The microstructure of DT00M sample synthesized from stoichiometric powder mixture (clay minerals and synthetic magnesia) consisted of cordierite only. Whereas cordierite, magnesium silicate, and sapphirine phases were present in DT04M and DT08M samples prepared from non-stoichiometric powder mixtures containing excess magnesia of 16 and 20 wt.%, respectively. The values of the activation energy (Ea) and frequency factor (A), for cordierite crystals, varied from 577 to 951 kJ/mol, and 1.54 × 1018 to 1.98 × 1030 S−1, respectively. The kinetic parameter n for the formation of cordierite had values between 2 and 3. While the Gibbs free energy (ΔG#), enthalpy (ΔH#), and entropy (ΔS#) values were found to be in the range 431–483 kJ/mol, 564–938 kJ/mol, and 70–313 J/mol, respectively. Samples sintered at 1300 °C for 2 h showed higher values of hardness compared with those sintered at 1250 °C. The DT04M sample had the highest hardness value of 9.45 GPa, demonstrating an increase of 12.5% with respect to monolithic cordierite (DT00M). In the temperature range 100–1300 °C, DT04M and DT08M samples showed better dimensional stability compared to monolithic cordierite. The DT08M sample showed the lowest thermal expansion (α = 2.32 × 10−6/°C), demonstrating a decrease of 31.3% with respect to monolithic cordierite. Se prepararon materiales cerámicos de cordierita duras, de bajo costo y dimensionalmente estables mediante reacción sinterizando dos minerales arcillosos naturales de arcilla y magnesia sintética. La microestructura y la dureza de los materiales desarrollados se caracterizaron por un microscopio electrónico de barrido y un probador de dureza, respectivamente. Se utilizaron análisis térmicos diferenciales, dilatometría y espectroscopía Raman para analizar la transformación de fases y el comportamiento de sinterización. El coeficiente de expansión térmica (α) se determinó a partir de experimentos de dilatometría. La microestructura de la muestra DT00M sintetizada a partir de una mezcla de polvo estequiométrico (minerales arcillosos y magnesia sintética) consistió únicamente en cordierita. Mientras que las fases cordierita silicato de magnesio y safirina estaban presentes en las muestras DT04M y DT08M preparadas a partir de mezclas de polvo no estequiométricas que contenían un exceso de magnesia del 16 y 20% en peso, respectivamente. Los valores de la energía de activación (Ea) y el factor de frecuencia (A), para cristales de cordierita, variaron de 577 a 951 kJ/mol, y 1,54 × 1018 a 1,98 × 1030 S-1, respectivamente. El parámetro cinético n para la formación de cordierita tenía valores entre 2 y 3. Mientras que los valores de energía libre de Gibbs (ΔG#), entalpía (ΔH#) y entropía (ΔS#) se encontraron en el rango 431-483 kJ/mol, 564-938 kJ/mol y 70-313 J/mol, respectivamente. Las muestras sinterizadas a 1.300 °C durante 2 h mostraron mayores valores de dureza en comparación con las sinterizadas a 1.250 °C. La muestra DT04M tuvo el mayor valor de dureza de 9,45 GPa, lo que demuestra un aumento del 12,5% con respecto a la cordierita monolítica (DT00M). En el rango de temperatura de 100-1.300 °C, las muestras DT04M y DT08M mostraron una mejor estabilidad dimensional en comparación con la cordierita monolítica. La muestra DT08M mostró la expansión térmica más baja (α = 2,32 × 10-6 °C-1), lo que demuestra una disminución del 31,3% con respecto a la cordierita monolítica." @default.
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• W3017396044 date "2021-09-01" @default.
• W3017396044 modified "2023-10-14" @default.
• W3017396044 title "Microstructure, thermal expansion, hardness and thermodynamic parameters of cordierite materials synthesized from Algerian natural clay minerals and magnesia" @default.
• W3017396044 cites W1506904240 @default.
• W3017396044 cites W1966661432 @default.
• W3017396044 cites W1970412676 @default.
• W3017396044 cites W1975523283 @default.
• W3017396044 cites W1982994781 @default.
• W3017396044 cites W1988765610 @default.
• W3017396044 cites W1990962781 @default.
• W3017396044 cites W1992475219 @default.
• W3017396044 cites W1992766809 @default.
• W3017396044 cites W1993701050 @default.
• W3017396044 cites W1994896431 @default.
• W3017396044 cites W1997928152 @default.
• W3017396044 cites W2000254084 @default.
• W3017396044 cites W2006218261 @default.
• W3017396044 cites W2011228319 @default.
• W3017396044 cites W2012257367 @default.
• W3017396044 cites W2016164675 @default.
• W3017396044 cites W2019335121 @default.
• W3017396044 cites W2020033301 @default.
• W3017396044 cites W2032461951 @default.
• W3017396044 cites W2050554061 @default.
• W3017396044 cites W2054858604 @default.
• W3017396044 cites W2055647206 @default.
• W3017396044 cites W2055951578 @default.
• W3017396044 cites W2056313043 @default.
• W3017396044 cites W2062488955 @default.
• W3017396044 cites W2063231357 @default.
• W3017396044 cites W2071514148 @default.
• W3017396044 cites W2074573319 @default.
• W3017396044 cites W2078976129 @default.
• W3017396044 cites W2081322139 @default.
• W3017396044 cites W2081435022 @default.
• W3017396044 cites W2083904171 @default.
• W3017396044 cites W2084131841 @default.
• W3017396044 cites W2085237990 @default.
• W3017396044 cites W2090345091 @default.
• W3017396044 cites W2117765366 @default.
• W3017396044 cites W2119821287 @default.
• W3017396044 cites W2125812668 @default.
• W3017396044 cites W2131681566 @default.
• W3017396044 cites W2159288873 @default.
• W3017396044 cites W2170189188 @default.
• W3017396044 cites W2186696719 @default.
• W3017396044 cites W2284594188 @default.
• W3017396044 cites W2314389862 @default.
• W3017396044 cites W2466371758 @default.
• W3017396044 cites W2493021286 @default.
• W3017396044 cites W2518201184 @default.
• W3017396044 cites W2529865115 @default.
• W3017396044 cites W2568170218 @default.
• W3017396044 cites W2589048302 @default.
• W3017396044 cites W2592271284 @default.
• W3017396044 cites W2603811519 @default.
• W3017396044 cites W2610861472 @default.
• W3017396044 cites W2621197286 @default.
• W3017396044 cites W2752899758 @default.
• W3017396044 cites W2765267955 @default.
• W3017396044 cites W2768822588 @default.
• W3017396044 cites W2803017859 @default.
• W3017396044 cites W2885272883 @default.
• W3017396044 cites W2903721697 @default.
• W3017396044 cites W2949446164 @default.
• W3017396044 cites W30979131 @default.
• W3017396044 cites W4249449370 @default.
• W3017396044 cites W1993322133 @default.
• W3017396044 doi "https://doi.org/10.1016/j.bsecv.2020.03.008" @default.
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