Why steam turbine jackets use sintered ceramic cloth
High surface temperature plus strict cleanliness rules out the coated glass cloth used on cooler equipment. Sintering removes the organic carrier.
A turbine jacket is a flexible removable cover made from high-temperature cloth and blanket, sewn in layers. On cooler equipment, coated glass cloth, silicone coated glass cloth or aramid cloth is entirely adequate, and ceramic cloth rated at 1260 C is unnecessary.
A steam turbine is different on two counts: the surface runs hot, and the area around it is kept clean for fire and contamination reasons.
What sintering does
Sintering burns out the organic spinning aid and sinters the fiber at the contact points, so the cloth becomes almost entirely inorganic. It stops smoking on first heat, sheds less dust, and holds its shape without the stiffness that a coating would add. That combination is what a turbine hall requires.
Reference note. Figures and standard references are indicative and do not replace the project specification, the current edition of the standard, or product test reports for the specific supply.