Dielectric porcelain materials

Abstract

Abstract PURPOSE:To make to obtain dielectric porcelain materials having a high dielectric constant, stable temperature characteristics, and a large Q-value by making a specified composition and making a component composition to have each specified range by a mole fraction. CONSTITUTION:A composition formula is shown as x BaO-y TiO2-z [(1-m-n)Sm2 O3-m (SrO.CeO2-n (CaO.CeO2)], and a component composition is made to have a range by a mole fraction of 0.10 <= x <= 0.85, 0.60 <= y <= 0.85, 0.05 <= z <=0.30, 0 < m <= 0.80, 0 <= n 0.80, x + y + z = 1, m + n <= 0.80. This enables excellent dielectric porcelain materials to be obtained for e.g. microwave communication equipments, the materials having a large Q-value necessary for application in higher frequencies as well as having a high dielectric constant and stable temperature characteristics adjustable to a temperature coefficient, etc.

Inventors

• 👤 Ayumi Nozaki
• 👤 野崎　歩
• 👤 Hisao Watai
• 👤 渡井　久男
• 👤 Takeo Ido
• 👤 井戸　猛夫

Bibliographic Details