Multicomponent homogeneous alloys and method for making same

Title: Multicomponent homogeneous alloys and method for making same

Full Record
Other Related Research

Abstract

The present application discloses a method for preparing a homogeneous ternary or quaternary alloy from a quaternary melt. The method includes providing a family of phase diagrams for the quaternary melt which shows (i) composition/temperature data, (ii) tie lines connecting equilibrium liquid and solid compositions, and (iii) isotherms representing boundaries of a miscibility gap. Based on the family of phase diagrams, a quaternary melt composition and an alloy growth temperature is selected. A quaternary melt having the selected quaternary melt composition is provided and a ternary or quaternary alloy is grown from the quaternary melt at the selected alloy growth temperature. A method for making homogeneous ternary or quaternary alloy from a ternary or quaternary melt is also disclosed, as are homogeneous quaternary single-crystal alloys which are substantially free from crystal defects and which have the formula A.sub.x B.sub.1-x C.sub.y D.sub.1-y, x and y being the same or different and in the range of 0.001 to 0.999.

Inventors:: Dutta, Partha S.; Miller, Thomas R.

Issue Date:: 2003-09-02

Research Org.:: Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1174469

Patent Number(s):: 6,613,162

Application Number:: 09/696,626

Assignee:: Rensselaer Polytechnic Institute (Troy, NY) OSTI

DOE Contract Number:: AC12-76SN3052

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Dutta, Partha S., and Miller, Thomas R. Multicomponent homogeneous alloys and method for making same.  United States: N. p., 2003. 
        Web.

Copy to clipboard


                    Dutta, Partha S., & Miller, Thomas R. Multicomponent homogeneous alloys and method for making same.  United States.

Copy to clipboard


                    Dutta, Partha S., and Miller, Thomas R. Tue .  
        "Multicomponent homogeneous alloys and method for making same".  United States.  https://www.osti.gov/servlets/purl/1174469.

Copy to clipboard


                    
@article{osti_1174469,

  title        = {Multicomponent homogeneous alloys and method for making same},

  author       = {Dutta, Partha S. and Miller, Thomas R.},

  abstractNote = {The present application discloses a method for preparing a homogeneous ternary or quaternary alloy from a quaternary melt. The method includes providing a family of phase diagrams for the quaternary melt which shows (i) composition/temperature data, (ii) tie lines connecting equilibrium liquid and solid compositions, and (iii) isotherms representing boundaries of a miscibility gap. Based on the family of phase diagrams, a quaternary melt composition and an alloy growth temperature is selected. A quaternary melt having the selected quaternary melt composition is provided and a ternary or quaternary alloy is grown from the quaternary melt at the selected alloy growth temperature. A method for making homogeneous ternary or quaternary alloy from a ternary or quaternary melt is also disclosed, as are homogeneous quaternary single-crystal alloys which are substantially free from crystal defects and which have the formula A.sub.x B.sub.1-x C.sub.y D.sub.1-y, x and y being the same or different and in the range of 0.001 to 0.999.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {9}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Iron-aluminum alloys having high room-temperature and method for making same

Patent Sikka, Vinod K. (Oak Ridge, TN); McKamey, Claudette G. (Knoxville, TN)

Iron-aluminum alloys having selectable room-temperature ductilities of greater than 20%, high resistance to oxidation and sulfidation, resistant pitting and corrosion in aqueous solutions, and possessing relatively high yield and ultimate tensile strengths are described. These alloys comprise 8 to 9.5% aluminum, up to 7% chromium, up to 4% molybdenum, up to 0.05% carbon, up to 0.5% of a carbide former such as zirconium, up to 0.1 yttrium, and the balance iron. These alloys in wrought form are annealed at a selected temperature in the range of 700.degree. C. to about 1100.degree. C. for providing the alloys with selected room-temperature ductilitiesmore » in the range of 20 to about 29%.« less
Full Text Available
Giant magnetoresistive heterogeneous alloys and method of making same

Patent Bernardi, Johannes J. (Berkeley, CA); Thomas, Gareth (Oakland, CA); Huetten, Andreas R. (Berkeley, CA)

The inventive material exhibits giant magnetoresistance upon application of an external magnetic field at room temperature. The hysteresis is minimal. The inventive material has a magnetic phase formed by eutectic decomposition. The bulk material comprises a plurality of regions characterized by a) the presence of magnetic lamellae wherein the lamellae are separated by a distance smaller than the mean free path of the conduction electrons, and b) a matrix composition having nonmagnetic properties that is interposed between the lamellae within the regions. The inventive, rapidly quenched, eutectic alloys form microstructure lamellae having antiparallel antiferromagnetic coupling and give rise to GMRmore »« less
Full Text Available
Giant magnetoresistive heterogeneous alloys and method of making same

Patent Bernardi, Johannes J. (Berkeley, CA); Thomas, Gareth (Oakland, CA); Huetten, Andreas R. (Berkeley, CA)

The inventive material exhibits giant magnetoresistance upon application of an external magnetic field at room temperature. The hysteresis is minimal. The inventive material has a magnetic phase formed by eutectic decomposition. The bulk material comprises a plurality of regions characterized by a) the presence of magnetic lamellae wherein the lamellae are separated by a distance smaller than the mean free path of the conduction electrons, and b) a matrix composition having nonmagnetic properties that is interposed between the lamellae within the regions. The inventive, rapidly quenched, eutectic alloys form microstructure lamellae having antiparallel antiferromagnetic coupling and give rise to GMRmore »« less
Full Text Available
Silicon release coating, method of making same, and method of using same

Patent Jonczyk, Ralf [Wilmington, DE]

A method of making a release coating includes the following steps: forming a mixture that includes (a) solid components comprising (i) 20-99% silicon by weight and (ii) 1-80% silicon nitride by weight and (b) a solvent; applying the mixture to an inner portion of a crucible or graphite board adapted to form an ingot or wafer comprising silicon; and annealing the mixture in a nitrogen atmosphere at a temperature ranging from 1000 to 2000.degree. C. The invention may also relate to release coatings and methods of making a silicon ingot or wafer including the use of a release coating.
Full Text Available
Ductile tungsten-nickel alloy and method for making same

Patent Snyder, Jr., William B. (Knoxville, TN)

The present invention is directed to a ductile, high-density tungsten-nickel alloy which possesses a tensile strength in the range of 100,000 to 140,000 psi and a tensile elongation of 3.1 to 16.5 percent in 1 inch at 25.degree.C. This alloy is prepared by the steps of liquid phase sintering a mixture of tungsten-0.5 to 10.0 weight percent nickel, heat treating the alloy at a temperature above the ordering temperature of approximately 970.degree.C. to stabilize the matrix phase, and thereafter rapidly quenching the alloy in a suitable liquid to maintain the matrix phase in a metastable, face-centered cubic, solid- solution ofmore » tungsten in nickel.« less
Full Text Available

Similar Records