Low temperature sintering of CCTO using P2O5 as a sintering aid

Effect of ZrO2 Doping on the Microstructure and Dielectric Properties of Ca0.97Y0.03Cu3Ti4-xZrxO12 Ceramics

“…CaCu 3 Ti 4 O 12 (CCTO) ceramics, due to its giant dielectric constant (ε r ) and simple preparation method, have been widely studied [1][2][3][4][5]. However, the practical application of CCTO ceramics is limited due to its high dielectric loss [4][5][6][7][8][9][10][11][12][13][14]. Many experiments focus on the reduction of dielectric loss tangent (tanδ) in CCTO ceramics from the following three methods.…”

“…The liquid phase, the driving force of grain growth, promotes grain growth [5]. By introducing sintering additives such as P 2 O 5 [11], Bi 2 O 3 [7] and halogen element [8], the formation of the liquid phase can be suppressed. Secondly, the tanδ is reduced by enhancing the heterogeneity between grains and grain boundaries.…”

“…These intergranular phases inhibit crystal growth and increase the resistance of grain boundaries. These studies not only provided experimental basis for the mechanism of giant permittivity, but also provided ideas and methods for improving the ε r and reducing the tanδ of CCTO ceramics [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Microstructure and Electric Properties of CaCu3Ti4O12 Multilayer Capacitors

“…Moreover, sintering of CCTO at low temperatures under low‐temperature ceramic cofiring (LTCC) conditions is rarely investigated. Glass sinter additives have been used to facilitate liquid‐phase sintering at temperatures as low as T ≥ 950°C . A temperature as low as 900°C is required though to cofire the dielectric material with Ag electrodes to fabricate MLCCs which might be integrated into complex LTCC modules.…”