The effect of lanthanide contraction on grain growth in lanthanide-doped BaTiO3

Effect of phosphorus additions on the sintering and transport properties of proton conducting BaZr0.85Y0.15O3−δ

“…The latter analogy implies that Ba-loss would be partially accommodated by dopant partitioning across the A and B sites, leading to resultant decreases in point defect concentrations and impairment of grain growth [36,37]. Note that the latter analogy has also been widely proposed to explain grain-growth inhibition in doped BaTiO 3 materials [38]. At higher amounts of P 2 O 5 ( 44 mol%), the trend is reversed and grain size is slightly increased.…”

Solid Solubility of Cerium in BaTiO3

“…Ce 3ϩ incorporated at Ba sites acts as a donor dopant. and microstructure of BaTiO 3 ceramics, it was concluded Donor dopants have a higher valency than the substituted that Ce could also act as a donor dopant when CeO 2 -doped ions, and therefore their incorporation requires formation BaTiO 3 is sintered in air (5,18). In this case Ce 4ϩ must of effectively negatively charged defects, e.g., cation vacan-be reduce to Ce 3ϩ .…”

Demystifying the role of sintering additives with “complexion”

“…Sir Richard J. Brook performed early pioneering work on both microstructural evolution during sintering, and the optimization of processing and microstructures through the use of additives. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Prof. Brook's classic work on modeling pore-boundary interactions is a mainstay of sintering and grain growth textbooks. 17 Brook maps 17 have provided an easy and convenient way of visualizing a complex problem.…”