| 摘要 |
A mounting mat for mounting a catalyst support structure within a housing in an exhaust gas treatment device. The mounting mat includes a layer of high silica content fibers and a layer of polycrystalline and/or high alumina inorganic fibers. The exhaust gas treatment device includes an outer housing, a fragile catalyst, and a mounting mat disposed in the gap between the housing and the fragile catalyst support structure. Additionally disclosed are methods of making the mounting mat and for making an exhaust gas treatment device incorporating the mounting mat. |
