Abstract The method for slip casting soft ferromagnetic ferrites includes forming a powder of soft ferromagnetic ferrite material, the powder having the formula MeO:Fe2O3 with a molecular ratio of about 1:1. The powder is sized so that it consists of particles having a maximum diameter of about 20 Mu , at least about 5% and no more than about 70 percent by weight of the particles having a diameter smaller than about 2 Mu . The ferrite powder is suspended in an aqueous solution, the solution is adjusted to have a solids concentration of at least about 50 percent by weight. A dispersing agent is added to the suspension. The suspension is introduced into a water-absorbing mold and a wet casting is formed within the mold. The casting is dehydrated, removed from the mold, and then sintered to complete the process.
A METHOD FOR SLIP CASING SOFT FERRITE MATERIAL, COMPRISING THE STEPS OF (1) FORMING A SUSPENSION BY SUSPENDING IN AN AQUEOUS SOLUTION A SOFT FERRITE POWDER IN AN AMOUNT OF 65-80 PERCENT BY WEIGHT THE FERRITE POWDER HAVING THE FORMULA OF MEO:FE2O3, THE MOLECULAR RATIO OF MEO TO FE2O3 BEING ABOUT 1:1 MEO BEING A OXIDE SELECTED FROM THE GROUP CONSISTING OF MNO, MGO, NIO, ZNO, AND CUO AND HAVING A PARTICLE SIZE DISTRIBUTION AS FOLLOWS:
Claim 2
Independent Claim
76 words
A METHOD FOR SLIP CASING SOFT FERRITE MATERIAL, COMPRISING THE STEPS OF (1) FORMING A SUSPENSION BY SUSPENDING IN AN AQUEOUS SOLUTION A SOFT FERRITE POWDER IN AN AMOUNT OF 65-80 PERCENT BY WEIGHT THE FERRITE POWDER HAVING THE FORMULA OF MEO:FE2O3, THE MOLECULAR RATIO OF MEO TO FE2O3 BEING ABOUT 1:1 MEO BEING A OXIDE SELECTED FROM THE GROUP CONSISTING OF MNO, MGO, NIO, ZNO, AND CUO AND HAVING A PARTICLE SIZE DISTRIBUTION AS FOLLOWS:
Claim 3
Dependent Claim
51 words
The invention in claim 1, wherein the step of suspending includes suspending with an organic dispersing agent made up of ammonium alginate in the amount of 0.05 percent to 0.8 percent by weight of the solution and triethylamine in the amount of 0.05 to 0.7 percent by weight of the solution.