公开(公告)号：DE3674332D1

公开(公告)日：1990-10-25

申请号：DE3674332

申请日：1986-10-22

Applicant: IBM

Inventor： CHANDRASHEKHAR G V ,  SHAFER MERRILL WILBERT

IPC: B41J2/135 ,  B41J2/16 ,  C03C17/34 ,  B41J2/14

公开(公告)号：DE1169356B

公开(公告)日：1964-04-30

申请号：DEJ0018906

申请日：1960-10-22

Applicant: IBM

Inventor： SHAFER MERRILL WILBERT

IPC: C04B35/26 ,  H01F1/03 ,  H01F10/18

公开(公告)号：DE3171671D1

公开(公告)日：1985-09-12

申请号：DE3171671

申请日：1981-04-16

Applicant: IBM

Inventor： MITCHELL JOSEPH WILLIAM ,  SHAFER MERRILL WILBERT ,  SAMBUCETTI CARLOS JUAN

IPC: C23C14/08 ,  B41J2/32 ,  B41J2/385 ,  B41J2/395 ,  B41J2/425 ,  C25D7/00 ,  G01D15/06 ,  B41J3/20 ,  C25B11/04

公开(公告)号：DE1242198B

公开(公告)日：1967-06-15

申请号：DEJ0029079

申请日：1965-09-28

Applicant: IBM

Inventor： SHAFER MERRILL WILBERT

IPC: C01B19/00 ,  C01F17/00 ,  H01F1/03

公开(公告)号：DE3062565D1

公开(公告)日：1983-05-11

申请号：DE3062565

申请日：1980-02-01

Applicant: IBM

Inventor： CHANG IFAY FAY ,  SHAFER MERRILL WILBERT

IPC: C09K11/08 ,  C09K11/59 ,  C09K11/63 ,  C09K11/64 ,  C09K11/70 ,  C09K11/71 ,  C09K11/74 ,  C09K11/75 ,  H01J29/20 ,  C09K11/42 ,  C09K11/44 ,  C09K11/447

公开(公告)号：DE1259760B

公开(公告)日：1968-01-25

申请号：DEJ0028283

申请日：1965-06-04

Applicant: IBM

Inventor： SHAFER MERRILL WILBERT

IPC: C01F17/00 ,  C30B11/00 ,  G02F1/00 ,  G02F1/09 ,  H01F1/03

公开(公告)号：DE1244134B

公开(公告)日：1967-07-13

申请号：DEJ0026085

申请日：1964-06-24

Applicant: IBM

Inventor： SHAFER MERRILL WILBERT

IPC: C01B33/20 ,  G02F1/00 ,  G11C13/06 ,  H01F1/03 ,  H01F1/00

Abstract: Europium silicates viz.-EuSiO3, Eu2SiO4 and Eu3SiO5 are prepared by intimately mixing SiO2 with one or any of EuO, EuCO3 or Eu(OH)2, heating the mixture to 800 DEG to 1600 DEG C. in a non-oxidizing atmosphere e.g. in a vacuum or in the absence of oxygen and cooling. Alternatively the mixture may be heated in a reducing atmosphere e.g. N2 + H2, Co + H2 or pure hydrogen, at a temperature between 1500 DEG and 2000 DEG C. using preferably an iridium, a platinum, or a graphite crucible. The above silicates are new magnetic materials, which are optically transparent in single crystal form, and have a Verdet's constant higher by a factor of 10 than previously known materials. The materials find application in magneto-optical instruments (see Division H4) and in transformer cores and memory elements.