Method of making a two-phase or multi-phase metallic material

• Main Author: ALFRED RICHARD ERIC SINGER
• Format: Patent
• Language: English
• Published: 01.09.1983
• Subjects: ALLOYS; BLASTING; BRAKES; CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLUTCHES; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COUPLINGS FOR TRANSMITTING ROTATION; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINEERING ELEMENTS AND UNITS; FERROUS OR NON-FERROUS ALLOYS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MECHANICAL ENGINEERING; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; THERMAL INSULATION IN GENERAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WEAPONS; WORKING METALLIC POWDER

A two-phase material comprises particles of a higher-melting-point phase (e.g. iron) dispersed in a lower- melting-point matrix (e.g. aluminium), the particles being of a material soluble in the matrix at the melting- point of the matrix with no perceptible dissolution of the particles evident in the material. Such materials may n application as friction materials in brake pads, stair edging decking and industrial flooring. The particles are fed into a spray of molten matrix material, and the spray is directed onto a colder surface to solidify the matrix spray. The temperature of the spray is below the melting point of the particles so that no perceptible dissolution of the particles occurs.