TPL offers a range of titanate powders with controlled size and chemistry.
NanOxideTM Powders are produced via an aqueous, low temperature process that allows for binary and tertiary oxide compositions with controlled stoichiometries. (Standard compositions include barium and strontium titanate). The ultra‐fine particle size of these ceramic powders makes them ideal for ultra‐thin dielectric layers in composites and ceramic capacitors.
The crystalline ceramic powders have uniform spherical morphology and high dielectric constant with sintering temperatures as low as 1000 °C. Powders are available with nominal particle sizes of 50 nm, 200 nm, 400 nm, and 800 nm.
Precise stoichiometry and high chemic purity are also key features. Various dopants can be used with binary compositions to modify properties for a wide range of ferroelectric applications.
HPB and HPS powders have cubic crystallinity less than 200 nm and have tetragonal crystallinity at 200 nm and larger. They are suitable for use in formulating for air fire and reducing atmospheres. In addition, they can be used in formulating base metal electrodes.
Solid solution compositions are fully adjustable to any ratio, from 1% to 99% strontium. Similarly, the primary particle size can be adjusted for the application, in the range of 50 nm to 800 nm.
As such, barium/ strontium titanate formulations are considered a specialty product and are manufactured upon request. The dielectric constant on the barium/ strontium titanate is non‐linear with respect to temperature and voltage with peak values in excess of 15,000.
TPL is dedicated to customer satisfaction and values the necessity of custom formulations in a variety of manufacturing products. TPL’s unique manufacturing process allows tremendous flexibility in the production of ceramic titanates.
As with the HSB, mixed metal titanate formulations can be produced with a wide range of compositions. In addition, the particle size of the powder can be varied from 50 nm to 800 nm.TPL’s versatile manufacturing also means that a wide variety of dopants can be added to any ceramic titanate over a range of concentrations. Dopants can be added homogeneously and heterogeneously to our ceramic titanates.
Homogeneous additions yield solid solutions while heterogeneous additions are designed to yield core/shell structures to MLCC applications. TPL encourages requests for chemical formulations that will meet customer specifications.