Calcium aluminosilicate glasses

On mixing the cement paste, the calcium aluminosilicate glass is attacked by hydrogen ions from the poly(alkenoic acid) and decomposes with liberation of metal ions (aluminium and calcium), fluoride (if present) and silicic acid (which later condenses to form a silica gel). 

Schmidt, W., Purrmann, R., Jochum, P. Glasser, O. (1981a). Calcium aluminosilicate glass powder and its use. European Patent Application 23,013. 

MacDowell, J. F. 1991. Stratlingite and hydrogamet from calcium aluminosilicate glass cements. In Special Cement Advanced Properties, Mater. Res. Soc. Symp. Proc., 179, 159-179. 

Figure 12.9(a) is a picture of a silicon carbide fibre (Nicalon) in a calcium-aluminosilicate glass matrix. This picture is taken from a detailed study of... 

Fig. 12.9. A silicon carbide fibre in a calcium-aluminosilicate glass matrix (a) ELSAM, 1.9 GHz, z= —3.2 pm (b) calculated contrast from eqns (12.2), (12.45), and (12.46), horizontal scale the same as (a), with tick spacing 2.5 pm this time the experimental parameters gave the best fit without any adjustment (Lawrence 1990).

Jianrong Qiu, K. Miura, H. Inouye, et al. Femtosecond laser-induced three dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions, Appl. Phys.Lett. 73 (1998) pp. 1763-1765. 

The situation in aluminosilicate glasses is complicated by the additional effects of next-nearest-neighbour Al on the Si shifts. Although some Q" sites can be unambiguously assigned, others such as Q (OAl) and Q (3A1) occur in the same chemical shift range and cannot be differentiated on this basis. Systematic variations in the Si peak positions and widths of sodium aluminosilicate and calcium aluminosilicate glasses can... 

Table 6 shows calculated ZAP factors for these materials as well as a hypothetical calcium aluminosilicate glass with a Ca0-Al203-Si02 ternary eutectic ratio plus 10 wt % PbO, and NIST 610 glass, a sodium-calcium aluminosilicate glass with a certified Pb concentration of 426 1 ppm (see also Pearce et al. 1997). ZAP factor ratios for the standard materials and Trebilcock monazite (Tomascak et al. 1996) are also given in Table 6. 

This is a calcium aluminosilicate glass widely used for surfacing mats, glass flakes, or flake glass linings, and for acid resistant cloths. C glass has poor... 

FIGURE 37.7 Crack propagation through a fiber-reinforced composite SiC fiber in calcium aluminosilicate glass. 

FIGURE 6-12 Nextel 720 fiber-reinforced calcium aluminosilicate glass-ceramic matrix composites show significant modulus retention following carbon interface burnout indicating matrix-to-fiber load transfer. Source Keller et al., 1997. 

A. Kumar and A. G. Fox, Microstmctural Study of the Hot Corrosion of a Calcium Aluminosilicate Glass-Ceramic and a Si-C-O-Fiber-Reinforced Calcium Aluminosilicate Matrix Composite via Sodium Sulfate in Air and Argon at 900°C, J. Am. Ceram. Soc. 81, 613-623 (1998). 

A. L. Ham, J. A. Yeomans and J. F. Watts, Effect of Temperature and Particle Velocity on the Erosion of a Sihcon Carbide Continuous Fibre Reinforced Calcium Aluminosilicate Glass-Ceramic Matrix Composite, Wear 233-235, 237 245 (1999). 

R-glass Calcium aluminosilicate glasses used where added strength and acid corrosion resistance are required ... 

Moesgaard, M., D. Herfort, J. Skibsted and Y. Yue. 2010. Calcium aluminosilicate glasses as supplementary cementitious materials. Glass Technology European Journal of Glass Science and Technology A 51,183-190. 

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