A method of coating a substrate includes adding ion erosion resistant particles, conductive particles, and a binder to an electrophoretic solution in an electrophoretic deposition apparatus including the substrate and a cathode spaced from the substrate. A current is applied to the substrate and cathode to deposit a first layer coating including the erosion resistant particles, the conductive particles, and the binder onto the substrate. The method further includes adding a low work function material to an electrolyte solution in an electrolytic deposition apparatus including the substrate and a cathode spaced from the substrate. A current is applied to the substrate and the cathode to deposit a second layer coating including the low work function material onto the substrate.

In an aspect, a dielectric composite comprises a thermoset epoxy resin; a reinforcing layer; greater than or equal 40 volume percent of a hexagonal boron nitride based on the total volume of the dielectric composite minus the reinforcing layer; 3 to 7.5 volume percent of a fused silica based on the total volume of the dielectric composite minus the reinforcing layer; an epoxy silane; an accelerator; and a de-aerator. The hexagonal boron nitride can comprise a plurality of hexagonal boron nitride platelets and a plurality of hexagonal boron nitride agglomerates. A volume ratio of the hexagonal boron nitride agglomerates to the hexagonal boron nitride platelets can be 1:1.5 to 4:1.

In an aspect, a dielectric composite comprises a thermoset epoxy resin; a reinforcing layer; greater than or equal 40 volume percent of a hexagonal boron nitride based on the total volume of the dielectric composite minus the reinforcing layer; 3 to 7.5 volume percent of a fused silica based on the total volume of the dielectric composite minus the reinforcing layer; an epoxy silane; an accelerator; and a de-aerator. The hexagonal boron nitride can comprise a plurality of hexagonal boron nitride platelets and a plurality of hexagonal boron nitride agglomerates. A volume ratio of the hexagonal boron nitride agglomerates to the hexagonal boron nitride platelets can be 1:1.5 to 4:1.

In an aspect, a dielectric composite comprises a thermoset epoxy resin; a reinforcing layer; greater than or equal 40 volume percent of a hexagonal boron nitride based on the total volume of the dielectric composite minus the reinforcing layer; 3 to 7.5 volume percent of a fused silica based on the total volume of the dielectric composite minus the reinforcing layer; an epoxy silane; an accelerator; and a de-aerator. The hexagonal boron nitride can comprise a plurality of hexagonal boron nitride platelets and a plurality of hexagonal boron nitride agglomerates. A volume ratio of the hexagonal boron nitride agglomerates to the hexagonal boron nitride platelets can be 1:1.5 to 4:1.

Articles useful for bedding and other comfort applications include a coated polyurethane foam. The coating includes an elastomeric polymer, a phase change material and ceramic particles. The coating provides desirable haptic properties, including a cool touch feature that creates a sensation of coolness when touched. The invention is also a coating composition for producing such a coating, and a method for producing the coating composition

Articles useful for bedding and other comfort applications include a coated polyurethane foam. The coating includes an elastomeric polymer, a phase change material and ceramic particles. The coating provides desirable haptic properties, including a cool touch feature that creates a sensation of coolness when touched. The invention is also a coating composition for producing such a coating, and a method for producing the coating composition

Articles useful for bedding and other comfort applications include a coated polyurethane foam. The coating includes an elastomeric polymer, a phase change material and ceramic particles. The coating provides desirable haptic properties, including a cool touch feature that creates a sensation of coolness when touched. The invention is also a coating composition for producing such a coating, and a method for producing the coating composition

A heat dissipation sheet containing a silicone resin and a thermally conductive filler, wherein with respect to the cross-sectional shape of the thermally conductive filler, the average value of an aspect ratio of the 1st to 24th particles from the largest of biaxial average diameters, is in a range of 0.4 or more and 1.4 or less. In addition, an area ratio (Sr) of a total area S of cross-sectional shapes of the particles to a whole area of the cross-sectional view may be in a range of 20% or more and 80% or less, and the particle number ratio may be less than 1. Further, a thermal resistance ratio of a thermal resistance value when a pressure of 0.4 MPa is applied to a thermal resistance value when a pressure of 1.0 MPa is applied may be 1 or more.

A heat dissipation sheet containing a silicone resin and a thermally conductive filler, wherein with respect to the cross-sectional shape of the thermally conductive filler, the average value of an aspect ratio of the 1st to 24th particles from the largest of biaxial average diameters, is in a range of 0.4 or more and 1.4 or less. In addition, an area ratio (Sr) of a total area S of cross-sectional shapes of the particles to a whole area of the cross-sectional view may be in a range of 20% or more and 80% or less, and the particle number ratio may be less than 1. Further, a thermal resistance ratio of a thermal resistance value when a pressure of 0.4 MPa is applied to a thermal resistance value when a pressure of 1.0 MPa is applied may be 1 or more.

A heat dissipation sheet containing a silicone resin and a thermally conductive filler, wherein with respect to the cross-sectional shape of the thermally conductive filler, the average value of an aspect ratio of the 1st to 24th particles from the largest of biaxial average diameters, is in a range of 0.4 or more and 1.4 or less. In addition, an area ratio (Sr) of a total area S of cross-sectional shapes of the particles to a whole area of the cross-sectional view may be in a range of 20% or more and 80% or less, and the particle number ratio may be less than 1. Further, a thermal resistance ratio of a thermal resistance value when a pressure of 0.4 MPa is applied to a thermal resistance value when a pressure of 1.0 MPa is applied may be 1 or more.