Abstract: Methods are disclosed for recovering one or more of the metals of tungsten and molybdenum from metal-cellulose material. One method involves digesting the material in a mineral acid selected from the group consisting of hydrochloric acid having a concentration of at least about 4 normal, and sulfuric acid having a concentration of at least about 9 normal at a temperature of at least about 50.degree. C. for a sufficient time to form a digestion solid containing the major portion of the tungsten and a digestion solution containing a portion of any molybdenum which is present in the material, and separating the solid from the solution. Another method involves having as the starting material a metal-cellulose material comprising one or more of the metals of tungsten and molybdenum and elements selected from the group consisting of arsenic, phosphorus, silicon, and combinations thereof.

Abstract: There is disclosed an electrical contact which comprises a substantially rigid electrically conductive body and a substantially flexible contacting portion electrically connected thereto. The contacting portion includes a first segment of insulative material and a second segment of conductive material secured to a selected area on the first segment. The contact is ideally suited for use within a zero force printed circuit board connector, said connector also disclosed.

Abstract: Plasma flame spray coatings exhibiting improved hardness and wear resistance are produced from flame spray powders comprising spray dried agglomerates of finely divided molybdenum and alumina powder subparticles, wherein the diameters of the agglomerates are at least two times the maximum diameter of the subparticles.