A　lead-free　ferroelectric　material,　(K(0.5)B(3)i(0.5))TiO3　(KBT),　was　prepared　by　a　sol-gel　process.　Thermal　analysis　and　X-ray　diffraction　showed　that　perovskite　KBT　powders　with　a　grain　size　of　100-200　nm　were　obtained　by　calcining　dried　gels　above　700　degrees　C.　When　the　calcining　temperature　was　lower　than　650　degrees　C,　only　the　Bi2Ti2O7　phase　was　found　in　the　X-ray　diffraction　patterns.　Moreover,　KBT　ferroelectric　ceramics　was　fabricated　by　traditional　sintering　of　as-prepared　KBT　powders.　The　KBT　ceramics　sintered　at　1050　degrees　C　showed　a　high　density　(91.2%　of　theoretic　density)　and　low　dielectric　loss,　better　than　that　prepared　by　a　solid-state　reaction　method.　The　temperature　dependence　of　dielectric　permittivity　of　KBT　ceramics　showed　a　Curie　temperature　at　385　degrees　C.　(c)　2005　Elsevier　B.V.　All　rights　reserved.