Barium titanate (BaTiO₃) is a perovskite oxide and one of the classic ferroelectric and piezoelectric ceramics. It is the parent compound of BSCT (Ba₀.₉Sr₀.₀₅Ca₀.₀₅TiO₃), the strontium- and calcium-doped variant described in the Min Xing et al. dossier (Min Xing et al., Sr-Ca-Ba-TiO₃ Toothpaste: Whitening and Remineralization Dossier).
Role in this dossier
BSCT is formed by substituting strontium and calcium for barium on the A-site of the BaTiO₃ perovskite lattice, giving the general formula Ba(1-2x)Sr(x)Ca(x)TiO₃ with a preferred x = 0.05. The piezoelectric behavior that BSCT exploits — polarization under mechanical strain, and the resulting Piezoelectric Catalysis (Piezocatalysis) — is inherited from the BaTiO₃ framework.
The dossier also lists a cluster of patents on calcium-doped barium titanate powders and ceramics (CN118183830, CN116534893, CN120965307, CN115959703, CN113353973, CN114853468, JP4441306), indicating an active patent landscape around doped BaTiO₃ powders. These are listed by title only and are not evidence for the BSCT efficacy claims.
Scope note
This page covers BaTiO₃ only as it appears in this source. The dossier does not provide BaTiO₃'s intrinsic properties, phase-transition temperatures, or comparative piezoelectric coefficients, so none are asserted here.
Source notes & attribution
- https://rexresearch.com/XingBaTiCaToothpaste/XingSrCaBaTiO3Toothpaste.html