firebrick


Also found in: Dictionary, Thesaurus, Wikipedia.

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 ?
The best scenario found throughout this research requires using a firebrick, a clay-based sample holder, with SiC as a thermal enhancer and a processing time of 36 min.
Genius SP-i320 is priced at Rs 1,800 and is available in Blue, Bronze, Firebrick or Olive color.
David Peyton built this massive fireplace from 15 tons of assorted masonry: concrete, stone, concrete block and firebrick. But there's no mortar to glue it all together.
You've probably seen firebrick; it's the light-colored brick often used to line fireplaces.
Outdoor Oven Materials List Detailed instructions for building the outdoor oven are available free at www.MotherEarthNews.com/Build-outdoor-oven Material Quantity Material Quantity Firebrick, 2.5 in.
The inside of the Kerwin's oven is firebrick, while the exterior is made of adobe brick from gray clay hauled from Charlestown.
Next, forensic probes revealed the face brick was not anchored back by way of metal ties to the thick inner firebrick walls of the chimney and large gaps had been left between the face brick and fire brick wall that had not been grouted.
The interior of the chamber is lined with a multi-layer combination of lightweight firebrick and block insulation to minimize heat loss.
The morning volume leader was Krosaki Harima, a firebrick manufacturer, rising 3 yen to 349 yen.
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.
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.