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单词 solid solution
释义
solid solution

Physics
  • A crystalline material that is a mixture of two or more components, with ions, atoms, or molecules of one component replacing some of the ions, atoms, or molecules of the other component in its normal crystal lattice. Solid solutions are found in certain alloys. For example, gold and copper form solid solutions in which some of the copper atoms in the lattice are replaced by gold atoms. In general, the gold atoms are distributed at random, and a range of gold–copper compositions is possible. At a certain composition, the gold and copper atoms can each form regular individual lattices (referred to as superlattices). Mixed crystals of double salts (such as alums) are also examples of solid solutions. Compounds can form solid solutions if they are isomorphous (see isomorphism).


Chemistry
  • A crystalline material that is a mixture of two or more components, with ions, atoms, or molecules of one component replacing some of the ions, atoms, or molecules of the other component in its normal crystal lattice. Solid solutions are found in certain alloys. For example, gold and copper form solid solutions in which some of the copper atoms in the lattice are replaced by gold atoms. In general, the gold atoms are distributed at random, and a range of gold-copper compositions is possible. At a certain composition, the gold and copper atoms can each form regular individual lattices (referred to as superlattices). Mixed crystals of double salts (such as alums) are also examples of solid solutions. Compounds can form solid solutions if they are isomorphous (see isomorphism).


Chemical Engineering
  • A crystalline material in which two or more elements or compounds share a common lattice. Certain alloys such as gold and copper form solid solutions in which some of the copper atoms in the lattice are replaced by gold atoms. Isomorphous compounds can form solid solutions since they have the same crystal structure.


Geology and Earth Sciences
  • Solid crystalline phases representing a mixture of two or more end-members and which may vary in composition within finite limits without the appearance of another phase. A mineral may exhibit solid solution involving atoms of an isomorphous mineral; for example, magnesium and iron ions are similar in size, and complete solid solution occurs between forsterite (Mg2SiO4) and fayalite (Fe2SiO4) end-members of the olivine series, in the most common type of solid solution, known as ‘substitutional solid solution’. See also ionic substitution.


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