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  • 1
    Digitale Medien
    Digitale Medien
    Crystallization in the SiO2-Al2O3 System from Amorphous Powders (1997)
    Springer
    Journal of sol gel science and technology 8 (1997), S. 415-418 
    Details
    ISSN: 1573-4846
    Schlagwort(e): silica-alumina ; crystallization ; enthalpy ; mullite
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The crystallization of amorphous chemically homogeneous powders in the SiO2.Al2O3 system has been studied by differential scanning calorimetry and X-ray diffraction. Up to 1300°C only one exotherm has been observed. Only mullite crystallizes for compositions ≤69 mol% Al2O3 and spinel for those ≥80%. The crystallizations into mullite and spinel are sharp and exothermic, with an enthalpy of 250–300 J/g. The chemical composition of the crystallized mullite regularly increases from 68 to 76 mol% Al2O3 with increasing bulk composition from 60 to 75 mol% Al2O3.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1026448816202
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Crystallization in the SiO2−Al2O3 system from amorphous powders (1997)
    Springer
    Journal of sol gel science and technology 8 (1997), S. 415-418 
    Details
    ISSN: 1573-4846
    Schlagwort(e): silica-alumina ; crystallization ; enthalpy ; mullite
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The crystallization of amorphous chemically homogeneous powders in the SiO2.Al2O3 system has been studied by differential scanning calorimetry and X-ray diffraction. Up to 1300°C only one exotherm has been observed. Only mullite crystallizes for compositions ≤69 mol% Al2O3 and spinel for those ≤80%. The crystallizations into mullite and spinel are sharp and exothermic, with an enthalpy of 250–300 J/g. The chemical composition of the crystallized mullite regularly increases from 68 to 76 mol% Al2O3 with increasing bulk composition from 60 to 75 mol% Al2O3.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02436875
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
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