Ruthenium oxide having a negative thermal expansion coefficient, and useable as a thermal expansion inhibitor

• Main Authors: Takenaka, Koshi, Okamoto, Yoshihiko, Inoue, Naruhiro, Shinoda, Tsubasa
• Format: Patent
• Language: English
• Published: 09.06.2020
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

A ruthenium compound exhibits large negative thermal expansion. The ruthenium oxide is represented by the formula (1) Ca2−xRxRu1−yMyO4+z (wherein R represents at least one element selected from among alkaline earth metals and rare earth elements; M represents at least one element selected from among...