| 摘要 |
<p>A composite material with a vitreous matrix and a reinforcing agent.
<??>The vitreous matrix is based on silica, alumina, zirconia, alkali metal and alkaline-earth metal oxides, these being in proportions by weight which, related to the total mass of the said matrix, correspond to the following inequalities:
(1) 50 % </= SiO2 </= 80 %
(2) 7 % </= Al2O3 </= 20 %
(3) 2 % </= ZrO2 </= 10 %
(4) 2 % SIGMA A2O </= 7 %
(5) 4 % </= SIGMA BO </= 10 %, in which inequalities SIGMA A2O and SIGMA BO denote the total weight of the alkali metal oxides and of the alkaline-earth metal oxides present in the said matrix, respectively. </p> |
