A shape-memory epoxy polymer graphene foam composite (SMEP-GrF) is formed from an open cell graphene foam (GrF) surrounded by and infiltrated with a shape-memory epoxy polymer (SMEP) matrix, with the GrF being an intra-connected framework within the SMEP matrix. The SMEP-GrF provides self-healing properties to a device fabricated from the SMEP-GrF. The SMEP-GrF is formed by infusion of an epoxy resin and hardener in an open cell GrF and curing the infused GrF.

A graphene foam ceramic composite (GrF-CC) comprises an open cell graphene foam (GrF) surrounded by and infiltrated with a sintered low temperature co-fired ceramic (LTCC) matrix. The GrF-CC can be prepared by infiltrating an open cell GrF with an LTCC slurry, removing the solvent from the slurry with solidification to a ceramic-GrF green body, and sintering the ceramic-GrF green body to form the GrF-CC. Sintering by spark plasma sintering (SPS) allows an LTCC GrF-CC that has a density of at least 90%.

A shape-memory epoxy polymer graphene foam composite (SMEP-GrF) is formed from an open cell graphene foam (GrF) surrounded by and infiltrated with a shape-memory epoxy polymer (SMEP) matrix, with the GrF being an intra-connected framework within the SMEP matrix. The SMEP-GrF provides self-healing properties to a device fabricated from the SMEP-GrF. The SMEP-GrF is formed by infusion of an epoxy resin and hardener in an open cell GrF and curing the infused GrF.

A graphene foam ceramic composite (GrF-CC) comprises an open cell graphene foam (GrF) surrounded by and infiltrated with a sintered low temperature co-fired ceramic (LTCC) matrix. The GrF-CC can be prepared by infiltrating an open cell GrF with an LTCC slurry, removing the solvent from the slurry with solidification to a ceramic-GrF green body, and sintering the ceramic-GrF green body to form the GrF-CC. Sintering by spark plasma sintering (SPS) allows an LTCC GrF-CC that has a density of at least 90%.

A method of forming a composite product is described. An example of the method comprises providing a layer (34) comprising a sheet-form moulding material and providing a substrate (36). The layer of sheet-form material is applied onto a surface of the substrate (36); and pressed to the substrate in a mould (30). In some examples, the substrate (36) is an open celled foam and gas and/or vapour can be displaced from the pressing region.

Disclosed are composite building boards and associated manufacturing methods. The composite boards may include, for example, one or more slurry layers with embedded fibrous mats. An exterior plastic coating is mechanically adhered to the underlying slurry layer. The plastic layer chemically bonds and cross-links with polymer additives within the slurry layer. The result is an integrated polymer matrix with greatly improved durability and surface strength.

Several embodiments of the present technology are directed to bonding sheets having enhanced plasma resistant characteristics, and being used to bond to semiconductor devices. In some embodiments, a bonding sheet in accordance with the present technology comprises a base bond material having one or more thermal conductivity elements embedded therein, and one or more etched openings formed around particular regions or corresponding features of the adjacent semiconductor components. The bond material can include PDMS, FFKM, or a silicon-based polymer, and the etch resistant components can include PEEK, or PEEK-coated components.

A protective coating system includes a substrate that has an exterior surface exhibiting a degree of valley/hill surface irregularity including a plurality of hills and a plurality of valleys and a first coating layer formed directly on to the exterior surface of the substrate and that conforms to the exterior surface of the substrate such that the first coating layer has a non-uniform coating thickness over the substrate. The protective coating system further includes a second coating layer formed directly on to the exterior surface of the first coating layer. The second coating layer includes a plurality of pores within the second coating layer. Still further, the protective coating system includes a third coating layer formed within at least some of the plurality of pores within the second coating layer.

The present invention relates to a foam material comprising:a structural matrix (1),at least one guest phase (2), anda fluid, the material being characterised in that the structural matrix (1) comprises a plurality of interconnected pores (3), the one or more guest phases (2) are accommodated inside at least one pore (3) of the structural matrix (1) and the fluid is accommodated inside the pores (3). The present invention further relates to the process for preparing the foam material according to the present invention and to the various uses of the foam material according to the present invention.

Protective coating systems for gas turbine engine applications and methods for fabricating such protective coating systems are provided. An exemplary protective coating system includes a substrate formed of a ceramic matrix composite material, a first coating layer formed directly on to the substrate and comprising an oxygen barrier material, a compliance material, or a bonding material and a second coating layer formed directly on to the first coating layer and comprising a thermal barrier material. The exemplary protective coating optionally includes a third coating layer partially formed directly on to the second coating layer and partially formed within at least some of the plurality of pores of the second coating layer.