University of Rochester

Harvard College

Hong Yang

George M Whitesides

Stephen D Jacobs

Shai Negev Shafrir

Yong Wang

Mimi Wang

Xiaowei Teng

Chunlin Miao

Pascal Deschatelets

Joni Mici

Rui Shen

John C Lambropoulos

A magnetorheological material comprises a magnetic particle and a ceramic material, wherein the magnetorheological material is in a dried form and further wherein a portion of the ceramic material is in the form of a nanocrystalline coating over the entire exterior surface of the magnetic particle and another portion of the ceramic material is in the form of a free nanocrystal. A magnetorheological material comprises a magnetic particle having a ceramic material coating over an external surface thereof as a result of a coating process, and a free nanocrystal of the ceramic material in the form of a residual by-product of the coating process. A sol-gel process for making a magnetorheological product comprises providing a sol of a desired ceramic coating material; combining a desired quantity of carbonyl iron (CI) particles with the sol to coat the CI particles with the ceramic coating material; creating a resulting quantity of nanocrystalline ceramic material-coated CI particles and a quantity of free nanocrystals of the ceramic material; and, drying the resulting quantity of coated CI particles and free nanocrystals to a moisture content equal to or less than 2 wt %.

Magnetorheological materials, method for making, and applications thereof

A method of synthesizing nanoparticles includes: combining at least one stabilizing agent, at least one precursor and an ionic liquid to form a reaction mixture; heating the reaction mixture to a predetermined temperature to form the nanoparticles and cause the nanoparticles to self-separate from the reaction mixture; and collecting the nanoparticles from the reaction mixture. Ionic liquid from which the nanoparticles are separated may be reused.

Synthesis of nano-materials in ionic liquids

The invention provides ceramic molded solid articles and methods for making these articles on the micron scale. Articles are molded from ceramic precursors, optionally using molds including at least one portion that is elastomeric.

Fabrication of ceramic microstructures

Monodisperse core-shell types of metal, metal oxide, and alloy nanoparticles with variable core diameters and shell thicknesses, and controlled synthesis methods for producing such nanoparticles are provided. Nanocomposite materials fabricated from nanoparticles, and methods for producing such nanocomposite materials are also provided.

Core-shell magnetic nanoparticles and nanocomposite materials formed therefrom

Growing community of inventors

Rochester, NY, United States of America

Hong Yang