…Even when the solid is a metal, the same situation occurs in the case of solder. In such cases, the ease of bonding at the interface is related to the ease of mixing between two substances, that is, their mutual solubility, and the amount called the solubility parameter, or sp for short, is a rough guide to adhesion. When a substance consisting of molecule A is cohesive due to intermolecular forces, the energy required to break all intermolecular bonds A-A contained in a unit volume (1 ml) is defined as sp, that is, the square root of the cohesive energy density. … *Some of the terminology that refers to "solubility parameter" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…固体が金属の場合でも,はんだの例では同様な事態が起こっているのである。このような場合には,界面の結合の起りやすさは2物質間相互の混りやすさ,すなわち,相互の間の溶解度に関係し,溶解度パラメーターsolubility parameter,略してspという量が接着性のだいたいの目安になる。分子Aからなる物質が分子間力で凝集しているとき,単位体積(1ml)中に含まれるすべての分子間結合A-Aを切り離すのに必要なエネルギー,すなわち凝集エネルギー密度cohesive energy densityの平方根をspと定義する。… ※「solubility parameter」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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