Title:
FERROPHOSPHOR COMPOSITION HAVING IMPROVED CONDUCTIVITY AND PASSIVATION RESISTANCE
Document Type and Number:
Japanese Patent JPS62238301
Kind Code:
A
Abstract:
A ferrophosphorus composition with improved conductivity and passivation resistance is prepared by treating ferrophosphorus particles with an aqueous solution containing a dilute mineral acid and ions of chromium and a metal selected from the group consisting of zinc, strontium, calcium, barium, lead or copper. In a preferred embodiment, the concentration of chromium and zinc ions in the solution is in the range of about 2 grams/liter to about 10 grams/liter, and the treatment time is from about 2 to about 6 minutes. The treated ferrophosphorus particles can be formulated in a suitable resin binder for use as corrosion resistant coatings, weldable coatings, EMI shielding coatings or electrically conductive coatings. The treated ferrophosphorus particles can also be used in powder metallurgy applications.
Inventors:
JIYOOJI TEII MIRAA
JIERARUDO ERU EBUAATSU
JIERARUDO ERU EBUAATSU
Application Number:
JP8280387A
Publication Date:
October 19, 1987
Filing Date:
April 03, 1987
Export Citation:
Assignee:
OCCIDENTAL CHEM CORP
International Classes:
H01B1/02; B22F1/17; C08K3/28; C08K3/32; C08K9/02; C08L1/00; C08L7/00; C08L21/00; C08L27/00; C08L33/00; C08L33/02; C09D5/08; C09D5/24; C23C22/24; H05K9/00; (IPC1-7): B22F1/02; C08K3/32; C08K9/02; C09D5/24; H01B1/02
Attorney, Agent or Firm:
Minoru Nakamura
Previous Patent: THERMAL ENERGY STORAGE MATERIAL COMPOSITION
Next Patent: TOUGHENING METHOD FOR TUNGSTEN CARBIDE SINTERED HARD ALLOY
Next Patent: TOUGHENING METHOD FOR TUNGSTEN CARBIDE SINTERED HARD ALLOY