A method for forming an ultra-high temperature (UHT) composite structure includes dispensing a first polymeric precursor with a spinneret; forming a first plurality of nanofibers from the first polymeric precursor; depositing the first plurality of nanofibers with a collector; and applying a fluid, with a nozzle, onto the first plurality of nanofibers disposed on the collector. The fluid includes a second polymeric precursor.

The present disclosure relates to a process for synthesis of barium bismuth sulfide nanofibers, having equivalent shielding capacity as lead. The present disclosure also relates to a radiation shielding articles and cosmeceuticals.

The use of a mixture (M) comprising (a) from 40 to 70% by volume of an inorganic powder (IP) based on the total volume of the mixture (M), (b) from 30 to 60% by volume based on the total volume of the mixture (M) of a binder (B) comprising (b1) from 50 to 96% by weight of at least one polyoxymethylene (POM) based on the total weight of the binder (B), (b2) from 2 to 35% by weight of at least one polyolefin (PO) based on the total weight of the binder (B), (b3) from 2 to 40% by weight of at least one further polymer (FP) based on the total weight of the binder (B)
in a fused filament fabrication process.

Brake disks with integrated heat sink are provided. Brake disk includes a fiber-reinforced composite material and an encapsulated heat sink material impregnated into the fiber-reinforced composite material. The encapsulated heat sink material comprises a heat sink material encapsulated within a silicon-containing encapsulation layer. Methods for manufacturing the brake disk with integrated heat sink and methods for producing the encapsulated heat sink material are also provided.

A method for fabricating a ceramic material includes impregnating a porous structure with a mixture that includes a preceramic polymer and a filler. The filler includes at least one free metal. The preceramic polymer material is then rigidized to form a green body. The green body is then thermally treated to convert the rigidized preceramic polymer material into a ceramic matrix located within pores of the porous structure. The same thermal treatment or a second, further thermal treatment is used to cause the at least one free metal to move to internal porosity defined by the ceramic matrix or pores of the porous structure.

A method for fabricating a ceramic material includes impregnating a porous structure with a mixture that includes a preceramic polymer and a filler. The filler includes at least one free metal. The preceramic polymer material is then rigidized to form a green body. The green body is then thermally treated to convert the rigidized preceramic polymer material into a ceramic matrix located within pores of the porous structure. The same thermal treatment or a second, further thermal treatment is used to cause the at least one free metal to move to internal porosity defined by the ceramic matrix or pores of the porous structure.