In the Late Classic Period Yaxchilan was one of the most powerful Maya cities along the course of the Usumacinta, with Piedras Negras as its major rival. Architectural styles in subordinate sites in the Usumacinta region demonstrate clear differences that mark a clear boundary between the two kingdoms.
Answered by The Community. Making the world better, one answer at a time. Steel is not usually considered a composite, as it is macroscopically homogeneous. However, some steel types, including classical iron-carbon steel, can be considered as metal-matrix composites, as they contain a second phase... sometimes.
Aluminized steel is basically steel that has been specially treated with an aluminum coating to make it stronger and more durable. Many manufacturers claim that it has all the best qualities of both aluminum and steel â itâs durable, largely heat-resistant, and doesnât corrode under most normal circumstances.luminized steel is basically steel that has been specially treated with an aluminum coating to make it stronger and more durable. Many manufacturers claim that it has all the best qualities of both aluminum and steel â itâs durable, largely heat-resistant, and doesnât corrode under most normal circumstances.