Barium titanate (BaTiO3) is the most widely studied and used perovskite ferroelectrics and the internal stress in BaTiO3 ceramics has been paid much attention.

• 摘要钛酸钡是研究最多应用最广泛的钙钛矿型铁电材料，钛酸钡陶瓷中的内应力受到人们的广泛关注。