Pixelligent Technologies LLC

Ivoclar Vivadent Ag

Yijun Wang

Wei Xu

Xia Bai

Linfeng Gou

Jun Xu

Robert Wiacek

Zehra Serpil Gonen Williams

Selina I Thomas

Dmitri G Brodkin

Rakesh Patel

Ajmal Khan

Anna B Verano

Ling Tang

Peter Sebastian Slusarczyk

Tracey Dianne Ziener

Provided are metal oxide ceramic materials and intermediate materials thereof (e.g., nanozirconia gels, nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles). The nanozirconia gels are formable gels. Also provided are methods of making and using the metal oxide materials and intermediate materials. The nanozirconia gels can be made using, for example, osmotic processing. The nanozirconia gels can be used to make nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental article. The nanozirconia green bodies, pre-sintered ceramic bodies, zirconia dental ceramic materials, and dental articles have desirable properties (e.g., optical properties and mechanical properties).

Metal oxide ceramic nanomaterials and methods of making and using same

Preparation of semiconductor nanocrystals and their dispersions in solvents and other media is described. The nanocrystals described herein have small (1-10 nm) particle size with minimal aggregation and can be synthesized with high yield. The capping agents on the as-synthesized nanocrystals as well as nanocrystals which have undergone cap exchange reactions result in the formation of stable suspensions in polar and nonpolar solvents which may then result in the formation of high quality nanocomposite films.

Synthesis, capping and dispersion of nanocrystals

Zirconia dental ceramics exhibiting opalescence and having a grain size in the range of 10 nm to 300 nm, a density of at least 99.5% of theoretical density, a visible light transmittance at or higher than 45% at 560 nm, and a strength of at least 800 MPa.

Nanocrystalline zirconia and methods of processing thereof

Growing community of inventors

Greenbelt, MD, United States of America

Yijun Wang