Allied Corporation

Metglas, Inc.

Allied Chemical Corporation

Honeywell International Inc.

Alliedsignal Inc.

Solidia Technologies, Inc.

Other

Holcim Technology Ltd

Lafarge

Metzlas, Inc.

Nicholas J DeCristofaro

Amitava Datta

Debasis Bose

Gordon Edward Fish

Peter Joseph Stamatis

Scott M Lindquist

Claude Henschel

Peter Sexton

Carl Eugene Kroger

Vahit Atakan

Sadananda Sahu

Sean Camron Quinn

Davidson M Nathasingh

Anatol Rabinkin

Günther Walenta

Alfred Freilich

Cédric Comparet

Vincent Meyer

Seshu V Tatikola

Ryusuke Hasegawa

Howard Horst Liebermann

Deepak Ravikumar

Lance A Davis

Sastry S Renduchintala

Jordi Marti

Ronald J Martis

Derek Raybould

Richard L Bye, Jr

Dung Anh Ngo

Richard Bye

Shinya Myojin

David F Teller

Jeng S Lin

David W Millure

Chin Fong Chang

Samuel Levinson

Gary B A Schuster

Dale R Walls

Joseph G Cox, Jr

Ryusuke Hasegawwa

Gordan Edward Fish

The invention provides composite materials comprising novel bonding elements exhibiting unique microstructures and chemical compositions, and methods for their manufacture and uses, for example, in a variety of concrete components with or without aggregates in the infrastructure, construction, pavement and landscaping industries.

Composite materials and bonding elements from carbonation of calcium silicate and methods thereof

The invention provides novel, microstructured clinker and cement materials that are characterized by superior grindability and reactivity. The disclosed clinker and cement materials are based on carbonatable calcium silicate and can be made from widely available, low cost raw materials via a process suitable for large-scale production. The method of the invention is flexible in equipment and processing requirements and is readily adaptable to manufacturing facilities of conventional Portland cement.

Microstructured carbonatable calcium silicate clinkers and methods thereof

The invention provides novel carbonatable calcium silicate compositions and carbonatable calcium silicate phases that are made from widely available, low cost raw materials by a process suitable for large-scale production. The method of the invention is flexible in equipment and production requirements and is readily adaptable to manufacturing facilities of conventional cement. The invention offers an exceptional capability to permanently and safely sequesters CO.

Carbonatable calcium silicate compositions and methods thereof

A bulk amorphous metal magnetic component has a plurality of laminations of ferromagnetic amorphous metal strips adhered together to form a generally three-dimensional part having the shape of a polyhedron. The component is formed by stamping, stacking and bonding. The bulk amorphous metal magnetic component may include an arcuate surface, and an implementation may include two arcuate surfaces that are disposed opposite each other. The magnetic component may be operable at frequencies ranging from between approximately 50 Hz and 20,000 Hz. When the component is excited at an excitation frequency 'f' to a peak induction level B, it may exhibit a core-loss less than 'L' wherein L is given by the formula L=0.0074 f (B)+0.000282 f(B), said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.

Bulk stamped amorphous metal magnetic component

A bulk amorphous metal inductive device includes a magnetic core having at least one low-loss bulk ferromagnetic amorphous metal magnetic component forming a magnetic circuit having an air therein. The component has a plurality of similarly shaped layers of amorphous metal strips bonded together to form a polyhedrally shaped part. The device has one or more electrical windings and is easily customized for specialized magnetic applications, e.g. for use as a transformer or inductor in power conditioning electronic circuitry employing switch-mode circuit topologies and switching frequencies ranging from 1 kHz to 200 kHz or more. The low core losses of the device, e.g. a loss of at most about 12 W/kg when excited at a frequency of 5 kHz to a peak induction level of 0.3 T, make it especially useful at frequencies of 1 kHz or more.

Bulk amorphous metal inductive device

A selective etching process cuts shapes from amorphous metal strip feedstock. The etching process comprises depositing a chemically resistant material to one side of the strip in a pattern that defines the requisite shape, mating the metal strip with a carrier strip, exposing at least one side of the metal strip to an etching agent to selectively etch the desired shape, and separating the shape from the strip feedstock. A plurality of layers of the shapes is assembled by adhesive lamination to form a generally polyhedrally shaped bulk amorphous metal magnetic component useful in high efficiency electric motors and inductive devices. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from about 50 Hz to about 20,000 Hz. When the component is operated at an excitation frequency 'f' to a peak induction level B, the component exhibits a core-loss less than about 'L' wherein L is given by the formula L=0.005 f(B)+0.000012 f(B), said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively. Performance characteristics of the bulk amorphous metal magnetic component of the present invention are significantly better than those of silicon-steel components operated over the same frequency range.

Selective etching process for cutting amorphous metal shapes and components made thereof

A unitary amorphous metal magnetic component for an axial flux electric machine such as a motor or generator is formed from a spirally wound annular cylinder of ferromagnetic amorphous metal strips. The cylinder is adhesively bonded and provided with a plurality of slots formed in one of the annular faces of the cylinder and extending from the inner diameter to the outer diameter of the cylinder. The component is preferably employed in constructing a high efficiency, axial flux electric motor. When operated at an excitation frequency 'f' to a peak induction level Bthe unitary amorphous metal magnetic component has a core-loss less than 'L' wherein L is given by the formula L=0.0074f(B)+0.000282f(B), the core loss, excitation frequency and peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.

Method of constructing a unitary amorphous metal component for an electric machine

An amorphous metal stator for a high efficiency radial-flux electric motor has a plurality of segments, each of which includes a plurality of layers of amorphous metal strips. The plural segments are arranged to form a generally cylindrical stator having a plurality of teeth sections or poles protruding radially inward from the inner surface of the stator. In a first embodiment, the stator back-iron and teeth are constructed such that radial flux passing through the stator crosses just one air gap when traversing each segment of the stator. In a second embodiment, the stator back-iron and teeth are constructed such that radial flux passing through the stator traverses each segment without crossing an air gap.

Amorphous metal stator for a radial-flux electric motor

A plurality of parts are brazed using an iron/chromium filler metal. The parts are preferably composed of stainless steel. The brazed assembly forms a heat exchanger characterized by good corrosion resistance and low rates of leaching of Ni, which are further improved by a post-brazing conditioning step in an oxygen-containing atmosphere at a temperature of about 150&#xb0; to 600&#xb0; C. The preferred brazing filler metal consists essentially of a composition having the formula FeCrCoNiMoWBSiwherein the subscripts are in atom percent and total 100%, 'b' is about 5 to 20, 'c' ranges from 0 to about 30, &#x201c;d&#x201d; is 0 to about 20, &#x201c;e&#x201d; is 0 to about 5, &#x201c;f&#x201d; is 0 to about 5, &#x201c;g&#x201d; is about 8 to 15, &#x201c;h&#x201d; is about 8 to 15, the balance being incidental impurities of up to about 1 percent by weight of the total composition.

Iron-chromium base brazing filler metals

A bulk amorphous metal inductive device comprises a magnetic core having at least one low-loss bulk ferromagnetic amorphous metal magnetic component forming a magnetic circuit having an air gap therein. The component comprises a plurality of similarly shaped layers of amorphous metal strips bonded together to form a polyhederally shaped part. The device has one or more electrical windings and is easily customized for specialized magnetic applications, e.g. for use as a transformer or inductor in power conditioning electronic circuitry employing switch-mode circuit topologies and switching frequencies ranging from 1 kHz to 200 kHz or more. The low core losses of the device, e.g. a loss of at most about 12 W/kg when excited at a frequency of 5 kHz to a peak induction level of 0.3 T, make it especially useful at frequencies of 1 kHz or more.

Bulk laminated amorphous metal inductive device

A unitary amorphous metal magnetic component for an axial flux electric machine such as a motor or generator is formed from a spirally wound annular cylinder of ferromagnetic amorphous metal strips. The cylinder is adhesively bonded and provided with a plurality of slots formed in one of the annular faces of the cylinder and extending from the inner diameter to the outer diameter of the cylinder. The component is preferably employed in constructing a high efficiency, axial flux electric motor. When operated at an excitation frequency &ldquo;f&rdquo; to a peak induction level B the unitary amorphous metal magnetic component has a core-loss less than &ldquo;L&rdquo; wherein L is given by the formula L&equals;0.0074 f (B ) &plus;0.000282 f (B ) , the core loss, excitation frequency and peak induction level being measured in watts per kilogram, hertz, and teslas, respectively.

Unitary amorphous metal component for an axial flux electric machine

A high efficiency electric motor has a generally polyhedrally shaped bulk amorphous metal magnetic component in which a plurality of layers of amorphous metal strips are laminated together adhesively to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from about 50 Hz to about 20,000 Hz. When the motor is operated at an excitation frequency &ldquo;f&rdquo; to a peak induction level B , the component exhibits a core-loss less than about &ldquo;L&rdquo; wherein L is given by the formula L&equals;0.005 f (B ) &plus;0.000012 f (B ) , said core loss, said excitation frequency and said peak induction level being measured in watts per kilogram, hertz, and teslas, respectively. Performance characteristics of the bulk amorphous metal magnetic component of the present invention are significantly better than those of silicon-steel components operated over the same frequency range.

Low core loss amorphous metal magnetic components for electric motors

Growing community of inventors

Chatham, NJ, United States of America

Nicholas J DeCristofaro