Alkali, Transitional, Ba-K, Trigonal

• B-Ba-K-O-Y
• Ba-K-La-Mn-O
• Ba-F-K-O-Ti
• Ba-K-O-W
• Ba-K-Mo-O
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• phase transitions
• mechanical properties
• transitional
• alkaline
• alkali
• chalcogen