refractory

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Related to Refractory material: Refractory lining, Refractory ceramic

refractory

1. Med not responding to treatment
2. (of a material) able to withstand high temperatures without fusion or decomposition
3. a material, such as fireclay or alumina, that is able to withstand high temperatures: used to line furnaces, kilns, etc.

refractory

[ri′frak·trē]
(materials)
A material of high melting point.
The property of resisting heat.
(medicine)
Not readily yielding to treatment.

Refractory

One of a number of ceramic materials for use in high-temperature structures or equipment. The term high temperatures is somewhat indefinite but usually means above about 1830°F (1000°C), or temperatures at which, because of melting or oxidation, the common metals cannot be used. In some special high-temperature applications, the so-called refractory metals such as tungsten, molybdenum, and tantalum are used. See Ceramics

The greatest use of refractories is in the steel industry, where they are used for construction of linings of equipment such as blast furnaces, hot stoves, and open-hearth furnaces. Other important uses of refractories are for cement kilns, glass tanks, nonferrous metallurgical furnaces, ceramic kilns, steam boilers, and paper plants. Special types of refractories are used in rockets, jets, and nuclear power plants. Many refractory materials, such as aluminum oxide and silicon carbide, are also very hard and are used as abrasives; some applications, for example, aircraft brake linings, make use of both characteristics.

Refractory materials are commonly grouped into (1) those containing mainly aluminosilicates; (2) those made predominantly of silica; (3) those made of magnesite, dolomite, or chrome ore, termed basic refractories (because of their chemical behavior); and (4) a miscellaneous category usually referred to as special refractories.

refractory

A material, usually nonmetallic, used to withstand high temperatures.
References in periodicals archive ?
Refractory materials are used in air and process gas heaters, reformers, and shaft furnaces of the iron and steel industry.
USPRwire, Wed Sep 24 2014] Refractory materials are used to provide refractory lining in furnaces, kilns, incinerators, and reactors.
Status of China's Refractory Material Industry in the World
Since 2000, China's refractory material industry has achieved rapid development driven by the brisk advancement of high-temperature industries like steel, building materials and nonferrous metals.
com/research/2417ee/china_refractory_m) has announced the addition of the "China refractory material product manufacturing industry, 2010" report to their offering.
ADPnews) - Dec 16, 2009 - The supervisory board of Austrian refractory material maker RHI AG (WBAG:RHI) appointed today Henning Eskild Jensen as CFO of the company.
Early filtration efforts in the mid-1960s included passing molten aluminum through a packed bed of granulated refractory material.
Reportlinker Adds China refractory material product manufacturing industry, 2008-2009
ADPnews) - Nov 12, 2009 - UniCredit has kept its "hold" advice on the stock of Austrian refractory material maker RHI AG and reduced its price target to EUR 19 from EUR 19.
This was because the low-heat refractory material made the filters "thermally invisible" to the molten steel, and the molds filled without any backpressure.