JPH0581971B2 - - Google Patents

Info

Publication number

JPH0581971B2

JPH0581971B2 JP61295370A JP29537086A JPH0581971B2 JP H0581971 B2 JPH0581971 B2 JP H0581971B2 JP 61295370 A JP61295370 A JP 61295370A JP 29537086 A JP29537086 A JP 29537086A JP H0581971 B2 JPH0581971 B2 JP H0581971B2

Authority

JP

Japan

Prior art keywords

powder

ferrite

sintered body

hexagonal ferrite

magnetic powder

Prior art date

1986-12-11

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired - Lifetime

Links

• Espacenet
• Global Dossier
• Discuss

• 229910000859 α-Fe Inorganic materials 0.000 claims description 40
• 230000005291 magnetic effect Effects 0.000 claims description 26
• 239000006247 magnetic powder Substances 0.000 claims description 19
• 239000002245 particle Substances 0.000 claims description 15
• 238000004519 manufacturing process Methods 0.000 claims description 13
• 239000000843 powder Substances 0.000 claims description 12
• 239000002253 acid Substances 0.000 claims description 9
• 230000005290 antiferromagnetic effect Effects 0.000 claims description 8
• 238000007496 glass forming Methods 0.000 claims description 8
• 239000000203 mixture Substances 0.000 claims description 8
• 238000010438 heat treatment Methods 0.000 claims description 7
• 229910052751 metal Inorganic materials 0.000 claims description 7
• 239000002184 metal Substances 0.000 claims description 7
• 239000013078 crystal Substances 0.000 claims description 6
• 229910001111 Fine metal Inorganic materials 0.000 claims description 4
• 238000001816 cooling Methods 0.000 claims description 2
• 238000002844 melting Methods 0.000 claims description 2
• 230000008018 melting Effects 0.000 claims description 2
• 239000012768 molten material Substances 0.000 claims description 2
• 238000010298 pulverizing process Methods 0.000 claims description 2
• QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
• 239000010419 fine particle Substances 0.000 description 8
• 230000000694 effects Effects 0.000 description 6
• 238000005054 agglomeration Methods 0.000 description 5
• 230000002776 aggregation Effects 0.000 description 5
• VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
• PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
• 229910052804 chromium Inorganic materials 0.000 description 4
• 239000011651 chromium Substances 0.000 description 4
• 239000011521 glass Substances 0.000 description 4
• 239000000463 material Substances 0.000 description 4
• 238000000034 method Methods 0.000 description 4
• 229910010413 TiO 2 Inorganic materials 0.000 description 3
• 238000007796 conventional method Methods 0.000 description 3
• NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
• 150000007513 acids Chemical class 0.000 description 2
• 150000002500 ions Chemical class 0.000 description 2
• 230000005389 magnetism Effects 0.000 description 2
• 239000000155 melt Substances 0.000 description 2
• 229910052759 nickel Inorganic materials 0.000 description 2
• BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
• 238000000926 separation method Methods 0.000 description 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• 229910020517 Co—Ti Inorganic materials 0.000 description 1
• ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
• 238000010306 acid treatment Methods 0.000 description 1
• 230000002411 adverse Effects 0.000 description 1
• 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
• 238000000576 coating method Methods 0.000 description 1
• 239000000470 constituent Substances 0.000 description 1
• 238000002425 crystallisation Methods 0.000 description 1
• 230000018044 dehydration Effects 0.000 description 1
• 238000006297 dehydration reaction Methods 0.000 description 1
• 238000001035 drying Methods 0.000 description 1
• 229910052738 indium Inorganic materials 0.000 description 1
• 229910052745 lead Inorganic materials 0.000 description 1
• 239000007788 liquid Substances 0.000 description 1
• WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
• 238000002156 mixing Methods 0.000 description 1
• 229910052750 molybdenum Inorganic materials 0.000 description 1
• 239000011733 molybdenum Substances 0.000 description 1
• 229910052758 niobium Inorganic materials 0.000 description 1
• 230000035515 penetration Effects 0.000 description 1
• 229910052697 platinum Inorganic materials 0.000 description 1
• 230000001737 promoting effect Effects 0.000 description 1
• 229920006395 saturated elastomer Polymers 0.000 description 1
• 239000007787 solid Substances 0.000 description 1
• 238000006467 substitution reaction Methods 0.000 description 1
• 238000005406 washing Methods 0.000 description 1
• 238000005303 weighing Methods 0.000 description 1