JPS5637246A - Ferrite binding glass composition - Google Patents

Ferrite binding glass composition

Info

Publication number
JPS5637246A
JPS5637246A JP10913279A JP10913279A JPS5637246A JP S5637246 A JPS5637246 A JP S5637246A JP 10913279 A JP10913279 A JP 10913279A JP 10913279 A JP10913279 A JP 10913279A JP S5637246 A JPS5637246 A JP S5637246A
Authority
JP
Japan
Prior art keywords
glass
sio
body layer
ferrite
bao
Prior art date
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.)
Granted
Application number
JP10913279A
Other languages
Japanese (ja)
Other versions
JPS6029654B2 (en
Inventor
Shinichi Komatsu
Shoichi Iwanaga
Nobuyuki Sugishita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10913279A priority Critical patent/JPS6029654B2/en
Publication of JPS5637246A publication Critical patent/JPS5637246A/en
Publication of JPS6029654B2 publication Critical patent/JPS6029654B2/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
    • C03C8/24—Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE: To provide the titled composition contg. SiO2, B2O3, ZnO, BaO, Na2O, K2O, Al2O3, etc. in a specified wt. ratio and useful mainly for a video head using SiO2 as a nonmagentic body layer.
CONSTITUTION: Glass having a composition consisting of, by wt., 9W21% SiO2, 22.5W30.5% B2O3, 27W34% ZnO, 8.5W18% BaO, 8.5W12.5% Na2O+K2O and ≤4.5% Al2O3 is used as ferrite binding glass for a magnetic head having a glass reinforced part on the tape sliding surface and using SiO2 as a nonmagnetic body layer. This glass has a thermal expansion coefficient suitable for bindig Mn-Zn ferrite, high wear resistance, sufficient mechanical workability and high hardness. Since this glass can well be freed of bubbles at ≤770°C, glass-ferite interdispersion occurs hardly. In addition, this glass is slightly reactive with SiO2, so it gives high accuracy gap width when used for a head using SiO2 as a nonmagnetic body layer.
COPYRIGHT: (C)1981,JPO&Japio
JP10913279A 1979-08-29 1979-08-29 Magnetic head manufacturing method Expired JPS6029654B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10913279A JPS6029654B2 (en) 1979-08-29 1979-08-29 Magnetic head manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10913279A JPS6029654B2 (en) 1979-08-29 1979-08-29 Magnetic head manufacturing method

Publications (2)

Publication Number Publication Date
JPS5637246A true JPS5637246A (en) 1981-04-10
JPS6029654B2 JPS6029654B2 (en) 1985-07-11

Family

ID=14502380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10913279A Expired JPS6029654B2 (en) 1979-08-29 1979-08-29 Magnetic head manufacturing method

Country Status (1)

Country Link
JP (1) JPS6029654B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011246A (en) * 1983-06-22 1985-01-21 バロ−ス・コ−ポレ−シヨン Glass composition and gas charge display panel
WO1985001724A1 (en) * 1983-10-20 1985-04-25 Eastman Kodak Company Aluminium oxide glass composition and magnetic head incorporating same
WO2011122369A1 (en) * 2010-03-28 2011-10-06 セントラル硝子株式会社 Low-melting-point glass composition, and electrically conductive paste material produced using same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7443684B2 (en) 2019-07-10 2024-03-06 東ソー株式会社 New zeolite and catalyst for producing aromatic hydrocarbons containing it

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6011246A (en) * 1983-06-22 1985-01-21 バロ−ス・コ−ポレ−シヨン Glass composition and gas charge display panel
JPH021100B2 (en) * 1983-06-22 1990-01-10 Unisys Corp
WO1985001724A1 (en) * 1983-10-20 1985-04-25 Eastman Kodak Company Aluminium oxide glass composition and magnetic head incorporating same
US4544974A (en) * 1983-10-20 1985-10-01 Eastman Kodak Company Alumina glass composition and magnetic head incorporating same
GB2158820A (en) * 1983-10-20 1985-11-20 Eastman Kodak Co Aluminium oxide glass composition and magnetic head incorporating same
JPS61500167A (en) * 1983-10-20 1986-01-30 イ−ストマン・コダック・カンパニ− Aluminum oxide glass composition and magnetic head using the composition
JPH0475177B2 (en) * 1983-10-20 1992-11-30
WO2011122369A1 (en) * 2010-03-28 2011-10-06 セントラル硝子株式会社 Low-melting-point glass composition, and electrically conductive paste material produced using same
JP2011207629A (en) * 2010-03-28 2011-10-20 Central Glass Co Ltd Low-melting-point glass composition, and electrically conductive paste material using the same
CN102762509A (en) * 2010-03-28 2012-10-31 中央硝子株式会社 Low-melting-point glass composition, and electrically conductive paste material produced using same

Also Published As

Publication number Publication date
JPS6029654B2 (en) 1985-07-11

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