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Refractory bricks in a torpedo car used for hauling molten iron. In materials science, a refractory (or refractory material) is a material that is resistant to decomposition by heat or chemical attack and that retains its strength and rigidity at high temperatures. [1]
In the making of firebrick, fire clay is fired in the kiln until it is partly vitrified.For special purposes, the brick may also be glazed. There are two standard sizes of fire brick: 229 mm × 114 mm × 76 mm (9 in × 4 + 1 ⁄ 2 in × 3 in) and 229 mm × 114 mm × 64 mm (9 in × 4 + 1 ⁄ 2 in × 2 + 1 ⁄ 2 in). [2]
Figure 1. An UHTC strake composed of three different sections with different UHTC compositions. [4]Beginning in the early 1960s, demand for high-temperature materials by the nascent aerospace industry prompted the United States Air Force Materials Laboratory to begin funding the development of a new class of materials that could withstand the environment of proposed hypersonic vehicles such as ...
Molybdenum is used in mercury wetted reed relays, because molybdenum does not form amalgams and is therefore resistant to corrosion by liquid mercury. [12] [13] Molybdenum is the most commonly used of the refractory metals. Its most important use is as a strengthening alloy of steel.
The company, first known as Trinity Steel, was founded by C. J. Bender in Dallas in 1933. W. Ray Wallace, an engineering graduate of Louisiana Tech, worked for Dallas's Austin Bridge Company in 1944 before joining the company in 1946 as its seventeenth employee. At the time Trinity Steel manufactured butane tanks in a Dallas County mule barn.
At the end of service Car #25 was donated to the Frontiers of Flight Museum in Dallas, Texas (later scrapped), and Cars #30 and #82 were donated to North Texas Historic Transportation in Fort Worth, Texas (later scrapped). [27] [28] The Museum of the American Railroad retains Car #45 in their collection along with original engineering manuals.