A bearing and a bearing alloy composition are described, the bearing alloy comprising in weight %: tin 5-10; copper 0.7-1.3; nickel 0.7-1.3; silicon 1.5-3.5; vanadium 0.1-0.3; manganese 0.1-0.3; and the balance being aluminium apart from unavoidable impurities.

Sintered alumina of Q value of greater than 25,000 and up to and greater than 45,000 at 10 GHz and at 25.degree. C., useful in useful in dielectric resonators can be obtained by sintering alumina powders with low level of impurities at between 1500.degree. C. and 1600.degree. C. until a density of at least 98% of its theoretical value is obtained.

A molding composition suitable for the preparation of glazing is disclosed. The composition contains a transparent thermoplastic polymer and a phthalocyanine or naphthalocyanine. Also disclosed is a method for preparing the composition.

There is provided a resilient, three dimensional material having fibrous texture and appearance and capable of fluid handling. It consists of a top surface and a bottom surface wherein fiber-like elements typically extend from one surface to the other forming flat to undulating surfaces characterized by a multiplicity of interconnected fluid passageways. Deformed, discontinuous film-like or encapsulated regions connect fiber-like elements and stabilize the material. The material of this inventio...

Electrically resistive material including platinum and from about 5 and about 70 molar percent or iridium, ruthenium or mixtures thereof, calculated based on platinum as 100%, are disclosed.

An auxetic polymeric material is manufactured in a filamentary or fibrous form. The auxetic polymeric material has a negative Poisson ratio so that it has the property of expanding or contracting transversely to a direction in which it is extended or compressed. The process for forming the material involves cohering and extruding heated polymer powder so that the cohesion and extrusion is effected with spinning to produce auxetic filaments. Typically, the power is heated to a temperature suffici...

Materials which are not themselves storage-stable at room temperature are made suitable for storage by mixing them with a carrier substance and spray drying the resulting mixture so as to form particles containing both the material and the carrier substance in which the carrier substance is in an amorphous, i.e. glassy or rubbery, state. Formation of such a composition greatly enhances stability. The material stored may be a biological material such as an enzyme, the components of a chemical rea...

The present invention provides a novel orange light-emitting phosphorescent material that is non-toxic and chemically stable in air, and this invention relates to a Ti--CaO phosphorescent material, produced from a starting material of calcium oxide (CaO), or of calcium carbonate (CaCO.sub.3), calcium hydroxide(Ca(OH).sub.2), calcium sulfate(CaSO.sub.4), calcium oxalate (CaC.sub.2 O.sub.4), or other compound to be converted to CaO through heating in air, by a process of bringing this starting mat...

Composite materials composed of organic and inorganic substances of the general formulation MO(O.sub.2 C--C.sub.6 H.sub.4 --CO.sub.2), wherein M is a transition metal, and a method for producing the composite materials. The structure of these materials includes at least one column of an array of transition metal oxides, the column having corner-sharing octahedra interlinked with spacer organic chelating ligands. The inorganic-organic hybrid materials are likely to exhibit properties not encounte...

Porous polyimide dielectric materials having low dielectric constants useful in electronic component manufacture are disclosed along with methods of preparing the porous polyimide dielectric materials. Also disclosed are methods of forming integrated circuits containing such porous polyimide dielectric material.