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4838530 
Journal Article 
Nucleation and growth of hexagonal CaAl2Si2O8 crystals in CaO-Al2O3-SiO2 glass 
Maeda, Kei; Yasumori, A 
2017 
1 
Materials Letters
ISSN: 0167-577X
EISSN: 1873-4979 
206 
241-244 
WOS:000407407300062 
Hexagonal CaAl2Si2O8 was precipitated inside of 25Ca0O-20Al(2)O(3)-55SiO(2) (wt%) glass by heat treatment at 1050 degrees C with MoO3 and carbon as nucleating agents. Transmission electron microscopy revealed that metallic molybdenum particles with sizes of similar to 200 nm precipitated in the glass and served as heterogeneous nucleation sites for plane-like hexagonal CaAl2Si2O8 crystals with widths greater than 10 mu m and thicknesses of similar to 1 gm. The thickness direction was the c-axis of hexagonal CaAl2Si2O8. (C) 2017 Elsevier B.V. All rights reserved. 
Glass ceramics; Hexagonal CaAl2Si2O8; Dmisteinbergite; Heterogeneous nucleation 
IRIS
• Molybdenum
     Litsearch 2018
          WOS