The ability of a material to resist surface wear.

Related Terms


The separation of two bonded materials, one or both of which are flexible, by stripping or pulling the flexible material from the mating surface at a 90 or 180 angle to the plane in which it is adhered.


The inclusion of minute bubbles of air in cement or concrete through the addition of some material during grinding or mixing to reduce the surface tension of the water, giving improved properties for the end product.


  1. Surface material on a deck. 2. Separating explosive charges containing primers with layers of inert material to prevent passage of concussion.


  1. A frame used in front of a television picture tube to conceal the rounded edges of the screen. 2. A thin sheet of metal or other material containing an open pattern, used to shield selected portions of a semiconductor or other surface during a deposition process. 3. A protective covering for the face or head in the form of a wire screen, a metal shield, or a respirator.


Decrease in the elevation of land without removal of surface material due to tectonic, seismic, or artificial forces.


A clutch in which torque is transmitted by friction between friction disks with specially prepared friction material riveted to both sides and contact plates keyed to the inner surface of an external hub.


Curing concrete, especially in pavements, by spraying a liquid material over the surface to form a solid, impervious layer which holds the mixing water in the concrete. Also known as membrane curing.


Applying material to the surface of a metal or ceramic by dipping into a liquid.


A method for casting metals or forming thermoplastic resins in which the molten material solidifies in and conforms to the shape of the inner surface of a heated, rapidly rotating container.


Accumulation of material on the surface of an object

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