Publikationsdatum:
2017-02-14
Beschreibung:
12CaO·7Al 2 O 3 (C12A7) glass was prepared by the melt quenching method. The glass transition temperature ( T g ) and the crystallization temperature ( T c ) of C12A7 glass are about 1050 K and 1194 K, respectively, measured by the differential scanning calorimetry (DSC). The structure of C12A7 glass was investigated by X-ray photoelectron spectroscopy (XPS) as well as magic angle spinning-nuclear magnetic resonance spectroscopy (MAS-NMR). Analysis shows that Al coordination number is about four in C12A7 glass, in which AlO 4 tetrahedrons and bridging oxygens (BO) constitute the glass network. Ca 2+ produces a few of non-bridging oxygens (NBO), which become neighbours of Al.
Print ISSN:
1757-8981
Digitale ISSN:
1757-899X
Thema:
Maschinenbau
