firebrick


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firebrick,

brick that can withstand high temperatures, used to line flues, stacks, furnaces, and fireplaces. In general, such bricks have high melting points that range from about 2,800°F; (1.540°C;) for fireclay to 4,000°F; (2,200°C;) for silicon carbide. They also should resist the chemicals in slags and not spall, i.e., flake under wide temperature changes. Clay bricks of fireclay or kaolin are common. Silica has good strength at high temperatures, but since it spalls, it is used in furnaces that remain hot continuously. High alumina bricks can stand high temperatures and high loads. To withstand alkalis there are magnesite bricks. Firebricks are not good insulators. A special insulating firebrick of highly porous fireclay or kaolin has low conductivity and low heat content but a melting point of only about 1,600°F; to 2,800°F; (870°C;–1,540°C;). It makes a thin, light wall that saves fuel because it heats quickly. A separate layer of insulating material backs up other kinds of firebrick. Refractory mortar binds firebricks together. Additional support comes from metal anchors projecting from the metal casing. Special coatings give bricks extra protection from slags and dust-laden gases. Plastic or castable mixes are used for repairs or special shapes.

firebrick

1. Brick made of a ceramic material which will resist high temperatures; used to line furnaces, fireplaces and chimneys. See also: Brick
2. Brick made of a ceramic material which will resist high temperatures; used to line furnaces, fireplaces and chimneys.

firebrick

[′fīr‚brik]
(materials)
A refractory brick, often made of fireclay, that is able to withstand high temperature (up to 1500-1600°C) without fusion; used to line furnaces, fireplaces, and chimneys.

firebrick

a refractory brick made of fire clay, used for lining furnaces, flues, etc.
References in periodicals archive ?
Because firebrick is so dense, it's tougher to split than regular brick.
I positioned the bolt head on my firebrick platform and placed two additional firebricks behind it, forming an "L".
The inside of the Kerwin's oven is firebrick, while the exterior is made of adobe brick from gray clay hauled from Charlestown.
Some examples of solid packing materials include Chromosorb P, which is sourced from firebrick, and Chromosorb W, which is sourced from Celite Filter Aid.
The morning volume leader was Krosaki Harima, a firebrick manufacturer, rising 3 yen to 349 yen.
Viewers can also appreciate the craftsmanship that goes into installing the firebrick.
Isokern Fireplace Systems makes a 36-inch-wide patio fireplace with options including a firebrick interior and stone, tile, or stucco finish on the exterior.
About twenty-five feet from the front fire door, the kiln narrows to form a smoke trace or underground smoke trail, which carries exhaust gases to a yellow-tan firebrick chimney.
Designed with community participation, this new, lower cost stove - constructed of locally available firebrick and a mixture of earth and molasses - is easily managed and maintained.
These are the same kilns you see in potters' studios: polygons and squares made of firebrick and steel that can withstand heat at 2,300 degrees.
The Carter County Bugle and the Olive Hill Times have never been confused with the New York Times, but such local papers obviously cover the northeastem Kentucky firebrick clay industry, including its baseball team, the Brickies, far better than the paper claiming to publish "all the news fit to print.