Abstract: A wire (10) for use in a brazing or soldering operation has an elongated body (12) of a metallic material. The elongated body (12) has an outer surface (18). A channel (14) is formed along a length of the body. The channel (14) has an opening (A1). A flux solution (22) is deposited within the channel (14) and along the length of the body. The flux solution (22) covers a portion of the outer surface (18). A portion of the flux solution (22) is exposed through the opening (A1) in the channel (14).
Abstract: A mechanical structure is provided with a crystalline superelastic alloy that is characterized by an average grain size and that is characterized by a martensitic phase transformation resulting from a mechanical stress input greater than a characteristic first critical stress. A configuration of the superelastic alloy is provided with a geometric structural feature of the alloy that has an extent that is no greater than about 200 micrometers and that is no larger than the average grain size of the alloy. This geometric feature is configured to accept a mechanical stress input.
Type:
Application
Filed:
July 8, 2009
Publication date:
June 10, 2010
Applicant:
Massachusetts Institute of Technology
Inventors:
Christopher A. Schuh, Jose M. San Juan, Ying Chen
Abstract: Nickel-based alloys are provided for use as a positive electrode current collector in a solid cathode, nonaqueous liquid electrolyte, alkali metal anode active electrochemical cell. The nickel-based alloys are characterized by chemical compatibility with aggressive cell environments, high corrosion resistance and resistance to fluorination and passivation at elevated temperatures, thus improving the longevity and performance of the electrochemical cell. The cell can be of either a primary or a secondary configuration.
Type:
Grant
Filed:
December 8, 2004
Date of Patent:
December 16, 2008
Assignee:
Greatbatch Ltd.
Inventors:
Christine Frysz, W. Richard Brown, Peter A. Kreidler, Sally Ann Smesko, Karen Nuwer
Abstract: The present invention is directed to a metal block suitable for machining, the metal block comprising at least two superimposed metal plates, each having a thickness of at least 12.5 mm, wherein the yield strength of the block is at least 75% of the yield strength of the initial metal plate(s). The present invention is further directed to methods for manufacturing such blocks from two or more thick metal plates by explosive welding and other methods. Blocks according to the present invention are useful, for example, for manufacturing aircraft structural components or injection molds for plastics or rubber.
Abstract: A laminated magnetic core assembly and method of manufacture having at least one notch formed along opposite sides of a strip material from which the laminations are formed. The notches on the opposite sides of the strip are punched out and separated from each other by a fixed distance. The notches minimize the amount of scrap material by avoiding the need for increasing the width of the strip from which a narrower strip having precision cut sides is formed.
Type:
Grant
Filed:
August 13, 1993
Date of Patent:
December 26, 2000
Assignee:
Philips Electronics North America Corporation
Abstract: A method for inhibiting the effects of fretting fatique in a pair of opposed titanium alloy mated surfaces through the use of a copper shim insert positioned between and in contact with the mated surfaces.
Type:
Grant
Filed:
May 11, 1978
Date of Patent:
July 29, 1980
Assignee:
The United States of America as represented by the Secretary of the Air Force
Abstract: A catalyst support comprises a stack of metal strips, said strips being coated with a catalyst material. Indentations in the strips maintain uniform spacing between the strips, so that gas can flow between the strips. The indentations are spaced so that the indentations in adjacent strips cannot coincide and nest together, so that adjacent strips cannot collapse together.
Abstract: An explosive-suppressive mass comprises layers of expanded metal of which each layer is arranged in a selected orientation so that its mesh strands are inclined with respect to the mesh strands of the layers adjacent thereto. This gives economic and other advantages in the manufacture of the anti-explosive materials.