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Abstract

There is described a copper-based sliding layer comprising a matrix of copper or a copper alloy with softer metallic inclusions of at least 10 wt-% which form particles having sectional areas separate from each other with respect to an observation plane parallel to the layer. To combine favorable strength values with good tribological properties, it is suggested that when adding up the sectional areas of the particles starting with the smallest sectional area and proceeding according to ascending area size the sectional area (F.sub.50) of that particle which completes the subtotal of the sectional areas up to its own area size to 50% of the final total corresponds to a maximum of ten times the sectional area (F.sub.5) of the particle completing the subtotal to 5% of the final total, but at least one fifth of the largest individual sectional area (F.sub.100).

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First Claim