An article includes a ceramic wall that defines at least a side of a passage. The ceramic wall includes a flow turbulator that projects into the passage. The flow turbulator is formed of ceramic matrix composite.

A spray coating containing a rare earth fluoride and/or a rare earth acid fluoride contains carbon at 0.01-2% by mass or titanium or molybdenum at 1-1000 ppm. When an acid fluoride is not contained, the spray coating is gray to black in which, in terms of the L*a*b* chromaticity, L* is 25-64, a* is ?3.0 to +5.0, and b* is ?4.0 to +8.0. When an acid fluoride is contained, the spray coating is white or gray to black in which, in terms of the L*a*b* chromaticity, L* is equal to or greater than 25 and less than 91, a* is ?3.0 to +5.0, and b* is ?6.0 to +8.0. By forming this coating on a plasma resistant member, a partial color change is reduced, thus, a member that is capable of reliably realizing the original longevity is obtained.

Provided herein are energy storage devices. In some cases, the energy storage devices are capable of being transported on a vehicle and storing a large amount of energy. An energy storage device is provided comprising at least one liquid metal electrode, an energy storage capacity of at least about 1 MWh and a response time less than or equal to about 100 milliseconds (ms).

The present invention relates to a body (2) provided on air vehicles; at least one transition metal alloy (3) which is located on the body (2) and consists of two-dimensional inorganic compounds by bonding a plurality of carbon atoms (C) and a plurality of nitrogen atoms (N); a plurality of layers (4) containing the transition metal alloy (3); at least one barrier coating (5) consisting of layers (4), which, thanks to the conductivity of the layer (4), prevents and provides protection against plastic and/or elastic deformations that may occur on the body (2) as a result electromagnetic wave that will act on the body (2), thanks to the conductivity of the layer (4).

A substrate includes a polycrystalline ceramic core; a first adhesion layer encapsulating the polycrystalline ceramic core; a conductive layer encapsulating the first adhesion layer; a second adhesion layer encapsulating the conductive layer; a barrier layer encapsulating the second adhesion layer, and a bonding layer coupled to the barrier layer, and a substantially single crystalline silicon layer coupled to the bonding layer.

A cutting element comprises a supporting substrate, and a cutting table attached to an end of the supporting substrate. The cutting table comprises inter-bonded diamond particles, and a thermally stable material within interstitial spaces between the inter-bonded diamond particles. The thermally stable material comprises a carbide precipitate having the general chemical formula, A.sub.3XZ.sub.n-1, where A comprises one or more of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, and U; X comprises one or more of Al, Ga, Sn, Be, Bi, Te, Sb, Se, As, Ge, Si, B, and P; Z comprises C; and n is greater than or equal to 0 and less than or equal to 0.75. A method of forming a cutting element, an earth-boring tool, a supporting substrate, and a method of forming a supporting substrate are also described.

A ceramic component is provided that is suitable to be placed in high temperature environment. The component includes a first member that is formed of a first material, and a ceramic layer that is bonded to a surface of the first member, which is a side exposed to the high temperature environment and that is formed of a ceramic material having a higher heat resistance than that of the first member. A bonding portion between the first member and the ceramic layer is formed of a composite material having the first material and the ceramic material, and a gradient composition in which an abundance ratio of the first material gradually decreases and an abundance ratio of the ceramic material gradually increases in a direction from the first member to the ceramic layer.

A ceramic circuit substrate according to the present invention includes a ceramic substrate, a copper circuit made of a copper-based material bonded, via a bonding layer, to a surface of the ceramic, and a copper heat sink made of the copper-based material bonded, via a bonding layer, to the other surface of the ceramic. The bonding layers each include a brazing material component including two or more kinds of metals, such as Ag, and an active metal having a predetermined concentration. The bonding layers each include a brazing material layer including the brazing material component, and an active metal compound layer containing the active metal. A ratio of a bonding area of the active metal compound layer in a bonding area of each of the bonding layers is 88% or more.

A ceramic matrix composite component and a ceramic insert, and a method for producing the same. The ceramic matrix composite component may include an exterior surface comprising silicon fibers in a silicon carbide matrix. The insert may include a continuous porosity bonded to the exterior surface of the ceramic matrix composite component. The silicon carbide matrix of the ceramic matrix composite component may extend into the porosity of the ceramic insert to bond the ceramic insert to the ceramic matrix composite component.

A super hard polycrystalline construction comprises a body of polycrystalline super hard material comprising a first fraction of super hard grains and a second fraction of super hard grains, the first fraction having a greater average grain size than the super hard grains in the second fraction, the super hard grains in the first and second fraction having a peripheral surface. The super hard grains in the first fraction are bonded along at least a portion of the peripheral surface to at least a portion of a plurality of super hard grains in the second fraction, the super hard grains in the first fraction being spaced from adjacent grains in the first fraction by a distance of between around 50 to around 500 nm.