Material class sorts technology materials by their basic physical category, such as a metal, an alloy or a polymer. Wikipedia defines stainless steel as "an iron-based alloy that contains chromium, making it resistant to rust and corrosion," a specific class distinct from a pure metal or a ceramic. This dimension groups materials that belong to the same basic material class.
Facts
Comparison
Main Engineering Branch Field Founding Era Polymer or Plastic
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Sources
1. Wikipedia: Engineering
WikipediaIntroduction, traditional disciplinesQuote, Introduction, traditional disciplines
The traditional disciplines of engineering are civil, mechanical, electrical, and chemical.
2. Wikipedia: Chemical engineering
WikipediaHistory, term origin, circa 1890Quote, History, term origin, circa 1890
History of Science in United States: An Encyclopedia puts the use of the term around 1890.
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