Ceralink, Inc.
Rensselaer Technology Park
105 Jordan Road
Troy, NY 12180
Phone: 518 283-7733
Fax: 518 283-9134

Strategic Product Development

Nanograined Barium Titanate

Project Description

Ceralink was awarded a NYSERDA contract to develop and commercialize a strategic ceramic powder for a New York State manufacturer. Ferro Corp needed to develop a nanograined barium titanate ceramic powder in order to compete with overseas manufacturers. As electronic products become smaller, the starting materials need to be finer in order to achieve required electrical properties, e.g. six BaTiO3 grains in one layer of a multilayer capacitor.

MAT calcined nano-barium titanate powder

Ceralink used our patented Microwave Assist Technology (MAT™) to develop a calcining process for barium titanate pre-curser powders. Using dielectric property measurements, Ceralink determined that the titania pre-cursor powder preferentially heated over the barium titanate between 700-1000 ºC. Using MAT™, the production of barium titanate can be a self limiting process, where the final product heats less than the pre-cursor materials, and will help avoid grain growth of the final product.

By using MAT™ to process the ceramic powder pre-cursors, we have achieved nanograined barium titanate powders. In addition, these powders are produced with decreased energy consumption, shorter cycle time, and at a lower calcining temperature compared to conventional processing. This process is applicable to may other materials that are produced by the mixed oxide method.

Lead zirconate titanate
Lanthanum strontium magnate
Yttria stabilized zirconia
Titanium bi-boride
Zinc oxide doping

Results: Avg. surface area = 7.6 m2/g -> particle size 130 nm, which gave a range ~25 nm

View our presentations on Self Limiting Microwave Assisted Synthesis of Nano Barium Titanate (1,164 KB) and Microwave Assist Technology for Product Improvement and Energy Efficiency (2,593).

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