| 摘要 |
<p>Inorganic fibres are disclosed, vacuum preforms of which have a shrinkage of 3.5 percent or less when exposed to 1260 degree C for 24 hours. The fibres have a composition comprising SrO, Al2O3, and sufficient fibre forming additive to allow fibre formation but not so much as to increase shrinkage beyond 3.5 percent. A preferred range of fibres has a shrinkage of 3.5 percent or less when exposed to 1500 degree C for 24 hours and may comprise (in weight percent): SrO 53.2 percent-57.6 percent, Al2O3 30.4-40.1 percent, SiO2 5.06-10.1 percent.</p> |
