… Special methods are used to determine the absolute value of pressure in the ultra-high pressure region. The pressure fixed-point method is a representative example, and pressure fixed points (tables) that utilize pressure-induced phase transitions of various elements and compounds have been proposed. The most reliable method for determining the absolute value of pressure fixed points is the ultra-high pressure X-ray diffraction method that conforms to the equation of state of a standard substance (such as NaCl). … *Some of the terminology used in relation to the "pressure fixed point method" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 超高圧領域で圧力の絶対値を決定する際には,特別の手法が採用される。圧力定点法はその代表であり,種々の元素や化合物の圧力誘起の相転移を利用した圧力定点(表)が提唱されている。圧力定点の絶対値を決定するにあたって,もっとも信頼性の高い手法は標準物質(NaClなど)の状態方程式に準拠する超高圧X線回折法である。… ※「圧力定点法」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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