| 摘要 |
<p>The present invention provides oxide based ceramic matrix composites (CMC) having superior properties at high temperatures. The CMC comprises a sol gel matrix with alumina particles mixed or blended in. The sol gel matrix is an aqueous colloidal suspension of a metal oxide, preferably from about 10 wt% to about 25 wt% of the metal oxide. Preferably the metal oxide is alumina (Al2O3), silica (SiO2) or alumina-coated silica. The mixture is then infiltrated into a ceramic fabric, dried, calcined and scintered to form the CMC of the present invention. Methods for making the CMC of the present invention are also provided.</p> |
