The ceramic capacitor in accordance with the present invention is fabricated by employing a dielectric ceramic composition in forming dielectric layers thereof, wherein the dielectric ceramic composition contains an oxide of Ba and Ti, an oxide of Re (Re used herein represents one or more rare-earth elements selected from Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Tb and Y) and one or more oxides selected from oxides of Mn, V and Cr, wherein the amount of the oxide of Ba and Ti is 100 mol % in terms of BaT...

A bearing comprising two coengaging members movable relative to one another, the bearing surfaces of said members being provided by a body of ceramic material and a film of solid lubricant interposed and in engagement with both said bearing surfaces.

In a ceramic resonator of the type comprising an outer casing, a disc shaped ceramic resonator element, a pair of resilient terminal members on both sides of the resonator element, each including a projection for supporting the resonator element, and a split inner casing contained in the outer casing for containing the resonance element and terminal members, one half of the split inner casing is provided with an annular rib on its mating surface and a cylindrical recess inside the annular rib, a...

A ceramic package bearing an electrically conducting pattern and adapted to receive diminutive electronic components such as semiconductor elements includes metallic plugs in the conducting pattern to serve as islands to which internal lead connections to the semiconductor element are made. The plugs permit a high degree of flexibility in material selection for contact areas providing different metals without costly selective plating techniques. The resulting structure can be fabricated without ...

A sintered ceramic article which comprises internal electrodes and/or conductors is formed by producing a sintered ceramic body that has areas of ceramic with interconnected pores extending to an outer face thereof and providing a conductor in said porous areas. The ceramic body may be formed by depositing, as by screen printing, on sheets of a powdered dielectric or insulating ceramic material bonded with a temporary bond, an area of a temporarily bonded powdered ceramic material which on firin...

A composite ring seal for rotary shafts and the like including an aluminum oxide base ceramic ring, the outer diameter face being metallized and having a rubber annulus bonded thereto. This article may be secured to a rotating assembly such that an axial face of the ceramic ring abuts the axial face of another ring on a fixed assembly to effect a seal. The rubber annulus operates to support the ring and may be compressed by maintaining the seal rings in engagement.

A preferred composite which is useful at temperatures in excess of about 0.degree. C. comprising a ceramic matrix and 40-60% on volume basis of coated and uncoated fibers embedded in the matrix generally parallel to each other and in a controlled arrangement; the matrix is selected from the group consisting essentially of silicon nitride, silicon carbide and zirconium titanate; the fibers are silicon carbides fibers 5-20 microns thick; the coating on the coated fibers is boron nitride 0.1-0.3 mi...

A ceramic heater including a ceramic body and a heating element buried in the ceramic body under the surface of thereof is provided, wherein metal pads are disposed on the outside of the ceramic body and electrically connected to the heating element, outer leads are joined by a braze layer onto a metal plated layer covering each of the pads, and the braze layer contains an amount of 500 ppm or less by weight of palladium in a brazing metal material based on Au, Cu, or Ni. The plated layer may be...

A colored ceramic body for use in various parts of electronic equipment, comprising at least one of A1.sub.2 O.sub.3 and BeO as a basic component, 0.1 to 5 percent by weight CoO and further additive chosen from the group consisting of MnO.sub.2, Cr.sub.2 O.sub.3, V.sub.2 O.sub.5, Fe.sub.2 O.sub.3 and mixtures thereof, the total amount of CoO and further additive being 1.0 to 10 percent by weight. The ceramic body is dark in color and has excellent electrical, mechanical and thermal characteristi...

A nonolithic microminiature inductor comprising a helical conductive path of deposited metal film immersed in a rectangular block of magnetic refractory material. The inductor has metal caps at each end of the block as terminations. These terminations may be soldered to metallized pads located on a substrate. A method for making this inductor wherein loops of conductive metal are deposited onto a thin unsintered magnetically permeable ceramic sheet with holes for interconnection therein and wher...