intermediate phase

Japanese: intermediate phase（英語表記）intermediatephase

…A compound formed between metallic elements, it is a solid crystal that exhibits metallic properties. Although it is a compound, it is completely different from a gas molecule compound, and is a solid phase that appears in the structure of a metallic material as one of the components (phases) of an alloy, so it is also called an intermediate phase. There are many crystals to which the simple concept of atomic valence cannot be applied. …

From [Solid solution]

…In general solid solutions, there is no regularity in the arrangement of A and B atoms, and they are called disordered or irregular solid solutions. Secondary solid solutions and intermetallic compounds are collectively called intermediate phases in contrast to primary solid solutions. In metallurgy, mixed crystals (Figure 3) can also refer to compounds in which certain lattice points in a compound crystal are occupied by two or more types of atoms, such as In _x Ga _{1- x} ･As. …

*Some of the terminology explanations that refer to the "intermediate phase" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…金属元素と金属元素との間に形成される化合物で，金属的な性質を示す固体結晶である。化合物といっても気体分子化合物とはまったく異なり，合金の構成要素(相)の一つとして金属材料の組織の中に出現する固相であるので，中間相intermediate phaseという呼び方もある。単純な原子価の考え方が適用できない結晶も数多く含まれる。…

【固溶体】より

…一般の固溶体ではふつうA,B原子の配列に規則性はなく，不規則固溶体あるいは無秩序固溶体と呼ばれている。2次固溶体と金属間化合物をまとめて，1次固溶体に対して，中間相intermediate phaseと呼ぶ。また，金属工学では混晶（図3）という場合に，たとえばIn_xGa_1－x･Asのように化合物結晶の特定の格子点が2種以上の原子によって占められるものをさすこともある。…

※「intermediate phase」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

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