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Crystal Structures and Mechanism of Thermal Expansion of High Cordierite and Its Solid Solutions
Author(s) -
IKAWA HIROYUKI,
OTAGIRI TADASHI,
IMAI OSAMU,
SUZUKI MASAHARU,
URABE KAZUYORI,
UDAGAWA SHIGEKAZU
Publication year - 1986
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1986.tb07451.x
Subject(s) - cordierite , solid solution , thermal expansion , octahedron , tetrahedron , crystal structure , materials science , thermal , crystallography , mechanism (biology) , crystal (programming language) , mineralogy , thermodynamics , chemistry , metallurgy , ceramic , physics , computer science , quantum mechanics , programming language
The crystal structure of high cordierite and that of high cordierite solid solutions containing either Mn or Ga or Ge were refined. The structural changes caused by substitutions and the characteristic features of deformations of each T1O 4 , T2O 4 tetrahedron and MO 6 octahedron were clarified. Thorough crystal chemical considerations led to a conclusion that the structure of Mn‐bearing solid solution at room temperature may be regarded as a model structure of high cordierite at an elevated temperature. On the basis of the thermal expansion mechanism derived from this consideration, the thermal expansion behavior of the solid solutions is presented.