Abstract:
A refractory metal composite article includes a refractory metal ceramic section and a refractory metal ceramic coating that together form a porous matrix. A solid filler is within pores of the porous matrix to, for example, reduce a porosity of the refractory metal composite article.
Abstract:
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.
Abstract:
A composite article includes a substrate and a protective coating on at least a portion of the substrate. The protective coating includes reinforcement particles dispersed within an elastomeric matrix that is modified with a silicon-containing modifier selected from polysilsesquioxane, polyhedral oligomeric silicate and polyhedral oligomeric silsesquioxane (POSS).
Abstract:
The present disclosure relates to a fluid purification device that has a deactivation resistant photocatalyst having nanocrystallites of less than 14 nanometers (nm) in diameter with at least 200 m2 surface area/cm3 of skeletal volume in cylindrical pores of 5 nm in diameter or larger, with the mode of the pore size distribution 10 nm or more.
Abstract translation:本公开涉及一种流体净化装置,其具有抗失活光催化剂,其具有直径小于14纳米(nm)的纳米晶体,直径为5nm或更大的圆柱形孔中具有至少200m 2表面积/ cm 3的骨架体积, 孔径分布的模式为10nm以上。
Abstract:
A refractory ceramic composite for an armor shell, comprising a ceramic core that is formable to replicate a portion of a three dimensional surface, e.g., of an aircraft, to provide ballistic protection. A method of making a shell of refractory ceramic armor capable of conforming to the geometry is provided. The shell is formed by forming a mold to replicate the surface area; arranging a ceramic core on the mold; and removing the mold to leave said ceramic core, and heat treating the ceramic core to a desired hardness. The ceramic core is in the shape of the surface area.
Abstract:
An article which includes a structure of a ceramic material that has a composition SiOxMzCy, where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x 0 and z
Abstract translation:一种制品,其包括具有组成SiO x M z C y的结构,其中Si是硅,O是氧,M是至少一种金属,C是碳,并且其中x <2,y> 0和z <1,x z不为零。
Abstract:
An exemplary assembly includes at least one elongated tension member. A jacket covers at least some of the tension member. The jacket comprises a polymer material. The assembly includes a flame retardant selected from a group consisting of a halogen-free melamine based intumescent or a filled polymer having a nanoscale filler chemically bonded to a matrix phase.
Abstract:
A composition for manufacturing a composite of a non-oxide ceramic matrix and a refractory phase within the non-oxide ceramic matrix includes a preceramic polymer for forming a non-oxide ceramic matrix and a refractory material dispersed within the preceramic polymer.
Abstract:
A photocatalyst system for volatile organic compounds with two parts that include a photocatalyst layer on a substrate and a porous overlayer. The photocatalyst layer is reactive with volatile organic compounds when UV light is projected on it. The overlayer is situated on the photocatalyst layer. The overlayer is UV transparent and has an interconnected pore network that allows contaminated air to pass through the overlayer. The size and the shape of the interconnected pores acts to selectively exclude certain contaminants that can deactivate the photocatalyst.
Abstract:
A coated article includes a substrate and a superhydrophobic coating on the substrate. The superhydrophobic coating is a composite of a silicone polymer and particles that are inherently hydrophobic or surface-functionalized with a hydrophobic agent.