A kit of parts includes a ceramic element comprising a cylindrical bore having at least one recess, and a rod comprising an outer tube comprising a jutting portion adjacent to an insert portion. An outer tube wall mates with the cylindrical ceramic bore. An outer tube bore comprises a cylindrical portion. An outer tube projecting member is insertable into a recess in the cylindrical bore. An inner mandrel insertable into the outer bore stabilizes a projecting member in a recess to couple the rod to the ceramic element.

A method for manufacturing an electrostatic chuck with multiple chucking electrodes made of ceramic pieces using metallic aluminum as the joining. The aluminum may be placed between two pieces and the assembly may be heated in the range of 770 C to 1200 C. The joining atmosphere may be non-oxygenated. After joining the exclusions in the electrode pattern may be machined by also machining through one of the plate layers. The machined exclusion slots may then be filled with epoxy or other material. An electrostatic chuck or other structure manufactured according to such methods.

A method for manufacturing an electrostatic chuck with multiple chucking electrodes made of ceramic pieces using metallic aluminum as the joining. The aluminum may be placed between two pieces and the assembly may be heated in the range of 770 C to 1200 C. The joining atmosphere may be non-oxygenated. After joining the exclusions in the electrode pattern may be machined by also machining through one of the plate layers. The machined exclusion slots may then be filled with epoxy or other material. An electrostatic chuck or other structure manufactured according to such methods.

A grommet assembly for mounting to a component of a turbine engine is provided. In one exemplary aspect, the grommet assembly includes a grommet that is removably mounted within a pass-through opening defined by the component. The component may be formed of a composite material. A locking member may be mounted to a body of the grommet. A flange projects from the body. When the grommet is mounted to the component and the locking member is mounted to the body, the body is received by the pass-through opening of the component and the locking member is mounted to the body such that the locking member and the flange clamp the component to secure the grommet to the component. An interface member, such as a pin, may be received by a hole defined by the grommet.

A component for a fastening arrangement of a gas turbine engine, the component comprising: a first abutment member; a second abutment member; a spring member between the first and second abutment members; a conduit comprising a throughole through the first and second abutment members and the spring member; the component being configured such that a shaft of a fastener passes through the throughole, a head of the fastener abuts the first abutment member and a part to be fastened by the fastening arrangement abuts the second abutment member, when the component is in the fastening arrangement.

A method for manufacturing an electrostatic chuck with multiple chucking electrodes made of ceramic pieces using metallic aluminum as the joining. The aluminum may be placed between two pieces and the assembly may be heated in the range of 770C to 1200C. The joining atmosphere may be non-oxygenated. After joining the exclusions in the electrode pattern may be machined by also machining through one of the plate layers. The machined exclusion slots may then be filled with epoxy or other material. An electrostatic chuck or other structure manufactured according to such methods.

A grommet assembly for mounting to a component of a turbine engine is provided. In one exemplary aspect, the grommet assembly includes a grommet that is removably mounted within a pass-through opening defined by the component. The component may be formed of a composite material. A locking member may be mounted to a body of the grommet. A flange projects from the body. When the grommet is mounted to the component and the locking member is mounted to the body, the body is received by the pass-through opening of the component and the locking member is mounted to the body such that the locking member and the flange clamp the component to secure the grommet to the component. An interface member, such as a pin, may be received by a hole defined by the grommet.

A kit of parts includes a ceramic element comprising a cylindrical bore having at least one recess, and a rod comprising an outer tube comprising a jutting portion adjacent to an insert portion. An outer tube wall mates with the cylindrical ceramic bore. An outer tube bore comprises a cylindrical portion. An outer tube projecting member is insertable into a recess in the cylindrical bore. An inner mandrel insertable into the outer bore stabilizes a projecting member in a recess to couple the rod to the ceramic element.

A temperature compensated spacer includes first and second anchoring configurations for anchoring the spacer relative to first and second elements, and a frame providing a mechanical connection between the anchoring configurations. The frame has a polygonal opening with a first diagonal extending across the width of a gap between the elements and a second diagonal extending transversely to the first diagonal. A crossbar is associated with the polygonal opening so as to span the second diagonal. The frame and the crossbar are formed from materials having differing coefficients of thermal expansion. The crossbar is deployed so as to determine a length of the second diagonal such that variation in temperature causes deformation of the frame, thereby varying a length of the first diagonal.

A nut plate (10) and a gang channel (78) are constructed of ceramic material. In one version, the nut plate (10) and gang channel (78) are constructed of aluminum oxide ceramic material reinforced with silicon-carbide crystal whiskers. In another version, the nut plate (10) and gang channel (78) are constructed of silicon-nitride. In a third version the nuts (54) are constructed of oxide ceramic material reinforced with silicon-carbide crystal whiskers or silicon-nitride and gage channel (78) are constructed of CMC (either oxide or non-oxide).