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material used to grind, smooth, cut, or polish another substance. Natural abrasives include sandsand,
rock material occurring in the form of loose, rounded or angular grains, varying in size from .06 mm to 2 mm in diameter, the particles being smaller than those of gravel and larger than those of silt or clay.
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, pumicepumice
, volcanic glass formed by the solidification of lava that is permeated with gas bubbles. Usually found at the surface of a lava flow, it is colorless or light gray and has the general appearance of a rock froth.
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, corundumcorundum
, mineral, aluminum oxide, Al2O3. The clear varieties are used as gems and the opaque as abrasive materials. Corundum occurs in crystals of the hexagonal system and in masses. It is transparent to opaque and has a vitreous to adamantine luster.
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, and ground quartzquartz,
one of the commonest of all rock-forming minerals and one of the most important constituents of the earth's crust. Chemically, it is silicon dioxide, SiO2.
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. Carborundum (silicon carbidesilicon carbide,
chemical compound, SiC, that forms extremely hard, dark, iridescent crystals that are insoluble in water and other common solvents. Widely used as an abrasive, it is marketed under such familiar trade names as Carborundum and Crystolon.
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) and aluminaalumina
or aluminum oxide,
Al2O3, chemical compound with m.p. about 2,000°C; and sp. gr. about 4.0. It is insoluble in water and organic liquids and very slightly soluble in strong acids and alkalies. Alumina occurs in two crystalline forms.
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 (aluminum oxide) are important synthetically produced abrasives. The hardest abrasives are natural or synthetic diamondsdiamond,
mineral, one of two crystalline forms of the element carbon (see allotropy), the hardest natural substance known, used as a gem and in industry. Properties
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, used in the form of dust or minuscule stones.


A small, hard, sharp-cornered rock fragment, used by natural agents in abrading rock material or land surfaces. Also known as abrasive ground.
A material used, usually as a grit sieved by a specified mesh but also as a solid shape or as a paste or slurry or air suspension, for grinding, honing, lapping, superfinishing, polishing, pressure blasting, or barrel tumbling.
A material sintered or formed into a solid mass such as a hone or a wheel disk, cone, or burr for grinding or polishing other materials.
Having qualities conducive to or derived from abrasion. Also known as abradant.


A material of extreme hardness that is used to shape other materials by a grinding or abrading action. Abrasive materials may be used either as loose grains, as grinding wheels, or as coatings on cloth or paper. They may be formed into ceramic cutting tools that are used for machining metal in the same way that ordinary machine tools are used. Because of their superior hardness and refractory properties, they have advantages in speed of operation, depth of cut, and smoothness of finish.

Abrasive products are used for cleaning and machining all types of metal, for grinding and polishing glass, for grinding logs to paper pulp, for cutting metals, glass, and cement, and for manufacturing many miscellaneous products such as brake linings and nonslip floor tile.

The important natural abrasives are diamond, corundum, emery, garnet, feldspar, calcined clay, lime, chalk, and silica, SiO2, in its many forms—sandstone, sand, flint, and diatomite.

The synthetic abrasive materials are silicon carbide, aluminum oxide, titanium carbide, and boron carbide. The synthesis of diamond puts this material in the category of manufactured abrasives.


A hard substance for removing material by grinding, lapping, honing, and polishing. Common abrasives include silicon carbide, boron carbide, diamond, emery, garnet, quartz, tripoli, pumice, diatomite, metal shot, grit, and various sands; usually adhered to paper or cloth.
References in periodicals archive ?
Anti-static abrasives differ from standard abrasives in that a chemical has been added to the coating surface which neutralizes the wood dust produced in the sanding operation and helps prevent dust buildup.
com/research/d54b2d/the_abrasives_indu) has announced the addition of the "The Abrasives Industry In Europe and North America: A Market / Technology Report" report to their offering.
Grinding belts are part of a family of products called "coated abrasives" that are manufactured by coating paper or cloth backing material with abrasive grams.
This abrasive grain is also used in vitrified and resinoid abrasives, and these bonded wheels are used in a variety of metalworking applications.
MARKET OVERVIEW II-1 Alumina Zirconia Oxide: A Manufactured Abrasive II-1 Zircon - A Key Component in Production of Alumina Zirconia Oxide Abrasives II-1 Table 1: Global Zirconium Reserves by Country in Thousand Metric Tons (2013) (includes corresponding Graph/Chart) II-2 Recession in Retrospect and the Road Ahead II-2 2.
Physically, AVOS products are similar to traditional abrasive discs in many important areas.
Complete report on Abrasives market divided into 13 major chapters that offer an overview of current market scenario as well as Abrasives forecasts is now available at http://www.
Now, with an improved economy, VSM Abrasives has decided to re-launch their e-newsletter in order to keep their customers better informed.
Over half of all additional abrasives demand generated between 2012 and 2017 will be attributable to China, the world's leading national market for these products.
Each metalcasting facility should work with its supplier to fit abrasives to the individual needs of each application.
Rex-Cut Abrasives has introduced a line of cotton fiber abrasive wheels for removing rust, corrosion and thread-lock from pipe threads during oil field inspections and process maintenance, as well as deburring manufactured pipe and tubing.