4 results about "Ceramic composite" patented technology

There is disclosed a gas turbine shroud structure comprising: a shroud support component 12 attached to an inner surface of a gas turbine casing 3; a shroud segment 14 divided in a peripheral direction and supported by the inner surface of the shroud support component; and a heat-resistant restricting spring 18 held between the shroud segment and shroud support component to urge the shroud segment inwards in a radial direction. The shroud segment 14 is formed of a ceramic composite material, and includes a coating layer 15 having heat insulation and impact absorption effect on an inner surface of the segment.

The present invention relates to a ceramics composite including: a matrix phase including Al₂O₃ or a substance in which one selected from Sc₂O₃ and Ga₂O₃ is incorporated into Al₂O₃; a main phosphor phase formed in the matrix phase and including a substance represented by a general formula A₃B₅O₁₂:Ce in which A is at least one selected from Y, Gd, Tb, Yb and Lu and B is at least one selected from Al, Ga and Sc; and a CeAl₁₁O₁₈ phase mixed in the matrix phase and the main phosphor phase.

The invention relates to a manufacturing method for a large-caliber abrasion-resistant corrosion-resistant ternary composite pipe accessory. The steps include that 1 a binary metal ceramic composite pipe fitting is manufactured, a metal ceramic composite steel pipe which is subjected to self-propagating high-temperature centrifugal synthesis (SHS) reaction is cut and welded in a spliced mode to form a required pipe fitting according to requirements; 2 abrasion-resistant materials are used for filling gaps of joints and mainly composed of abrasion-resistant inorganic particles and modified resin composite adhesives; 3 a separable double-layer mold is used for being lined in the inner cavity of a branch pipe, and inner surface resin layer pouring forming is conducted by combining a vacuum centrifugal pouring process. By means of the manufacturing method, the problem that a part of the composite resin layer of the ternary composite pipe accessory must be manufactured manually and can not be formed through machinery is solved, and the resin layer of the ternary composite pipe accessory and sealing face resin can be formed through one step. By means of the pipe accessory manufactured through the method, the resin layer is even in thickness, end product quality is stable and reliable, the service life is prolonged, application of an abrasion-resistant corrosion-resistant ternary composite pipeline project is guaranteed effectively, important project value is achieved, and production efficiency is improved.