Abstract: A method of applying a knotted lacing cord or yarn to an elongated bundle of electrical wires comprises the steps of forming a set of loosely knotted adjacent loops of larger diameter than the bundle from a continuous length of a lacing cord, passing the plurality of loops over a free end of the bundle, securing the first loop at an adjacent said free end by knotting or otherwise clamping it thereto followed by pulling on the free opposite end of the lacing cord to progressively tighten successive loops about the bundle, at spaced intervals along the length of the latter.

Abstract: Sintered reaction-bonded silicon nitride components, e.g., automotive components, are made by forming a powder mixture comprising silicon and oxide or oxide precursor additives. These additives comprise alumina and a calcium compound. The powder is formed into a preform, the silicon is reacted with nitrogen in a nitriding process to form silicon nitride, and the so-formed silicon nitride is sintered.