| 摘要 |
Provided are inorganic fibers which can exhibit high biosolubility and have excellent heat resistance as the constituting material for a filter material, a sealing material or the like, while exerting minimized effects on the human body or the living environment even when the fibers have an average diameter of 1 mum or less. Inorganic fibers including 35 mass % to 88 mass % of Al2O3, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO2, wherein the total content of Al2O3, CaO and SiO2 is 98 mass % or more of the entire fibers. |
