skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process

Abstract

This invention relates to an improved process of preparing Bi-Sr-Ca-Cu-O (BSCCO) powders, and more particularly, to a process for preparing BSCCO powders that utilize freeze-drying. The process generally includes splat freezing a nitrate solution of Bi, Pb, Sr, Ca, and Cu to form flakes of the solution; grinding the flakes to form a powder; freeze-drying the frozen powder; heating the powder to form dry green precursor powders; denitrating the powders; and heating the powders to form phase-clean Bi-2223 powders.

Inventors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
450073
Patent Number(s):
PATENTS-US-A8315452
Application Number:
ON: DE97003558; PAN: 8-315,452; TRN: 97:001653
Assignee:
Dept. of Energy
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent Application
Resource Relation:
Other Information: PBD: 1994
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH OXIDES; SYNTHESIS; COPPER OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; INVENTIONS; POWDERS; SUPERCONDUCTORS; LYOPHILIZATION; GRINDING; HEATING; DENITRATION; DOPED MATERIALS; LEAD

Citation Formats

Balachandran, U, Krishnaraj, P, Eror, N G, and Lelovic, M. Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process. United States: N. p., 1994. Web.
Balachandran, U, Krishnaraj, P, Eror, N G, & Lelovic, M. Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process. United States.
Balachandran, U, Krishnaraj, P, Eror, N G, and Lelovic, M. Sat . "Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process". United States. https://www.osti.gov/servlets/purl/450073.
@article{osti_450073,
title = {Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process},
author = {Balachandran, U and Krishnaraj, P and Eror, N G and Lelovic, M},
abstractNote = {This invention relates to an improved process of preparing Bi-Sr-Ca-Cu-O (BSCCO) powders, and more particularly, to a process for preparing BSCCO powders that utilize freeze-drying. The process generally includes splat freezing a nitrate solution of Bi, Pb, Sr, Ca, and Cu to form flakes of the solution; grinding the flakes to form a powder; freeze-drying the frozen powder; heating the powder to form dry green precursor powders; denitrating the powders; and heating the powders to form phase-clean Bi-2223 powders.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {12}
}

Patent Application:

Save / Share: