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Chemical Engineering (CE)

Chemical Engineering is an interdisciplinary field involving the core properties of material matter and its applications to machine and product development and the relationship between the structure of materials and their properties.  It includes elements of applied physics and chemistry, chemical, mechanical, electrical engineering.  Chemical engineering is part of the field of mechanical and material engineering involving the properties of material matter and its application and use in tool, machine and product development and the relationship between the structure of materials and their properties.  It includes an understanding of the theoretical, atomic and molecular properties of periodic chemical elements and applied physics and chemistry, as well as metallurgical, chemical, mechanical, civil and electrical engineering, including; nano-science, nano physics and nano-technologies in the recent years. 

At the center of all materials chemical engineering and the atomic, elements (periodic table), defined by the type of atom its associated atomic number; describing the number of protons in its nucleus or the pure chemical, composed of atoms with the same number of protons.  Common pure elements are hydrogen, nitrogen, and carbon that can be mined, extracted, or chemically refined.  There have been 117 elements discovered or observed as of 2008 of which 94 occur naturally on Earth.  Elements above the atomic number 43 - 61 (technetium and promethium) have no stable isotopes, and exhibit radioactive decay and above 82 (i.e,. bismuth and those above), are considered unstable.  Elements up to 94 with no stable nuclei are found in nature, as a result of the natural decay processes of uranium and thorium.  (See periodic table) The atomic, electromagnetic and gravitational properties of these elements including there number atoms and protons (+ positive ) and electrons (- negative) properties and the level of attraction and repulsion forces create stable and unstable bonds and molecules.  These molecules result in solid crystalline or amorphous materials like metals, plastics, glasses, fluids or gases.  

Chemical Engineers manipulate materials in various state phases including crystalline materials such as precipitates, grain boundaries, interstitial atoms, vacancies or substitutional atoms to create new materials with the desired properties.  Materials such as polymers, glasses, some ceramics, and many natural materials are amorphous, not possessing any long-range order in their atomic arrangements, are commonly combined with elements of chemical and statistical thermodynamics to give thermodynamic, rather than mechanical, descriptions of physical properties. Disciplines that form the basis of chemistry and its application to materials science:

  • Thermodynamics, physical chemistry for phase stability, transformations (physical and chemical)
  • Crystallography and chemical bonding, for understanding how atoms in a material are arranged.
  • Glass Science --- any non-crystalline material including inorganic glasses, vitreous metals and non-oxide glasses.
  • Solid-state physics and quantum mechanics, for the understanding of the electronic, thermal, magnetic, chemical, structural and optical properties of materials.
  • Diffraction and wave mechanics, for the characterization of materials.
  • Chemistry and polymer science, for the understanding of plastics, colloids, ceramics, liquid crystals, solid state chemistry, and polymers.
  • Biology, for the integration of materials into biological systems.
  • Continuum mechanics and statistics, for the study of fluid flows and ensemble systems.
  • Mechanics of materials, for the study of the relation between the mechanical behavior of materials and their microstructures.

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