JPS5784731A - Preparation of ceramic bead - Google Patents

Preparation of ceramic bead

Info

Publication number
JPS5784731A
JPS5784731A JP55160313A JP16031380A JPS5784731A JP S5784731 A JPS5784731 A JP S5784731A JP 55160313 A JP55160313 A JP 55160313A JP 16031380 A JP16031380 A JP 16031380A JP S5784731 A JPS5784731 A JP S5784731A
Authority
JP
Japan
Prior art keywords
bead
sol
liquid
gel
ceramic
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
JP55160313A
Other languages
Japanese (ja)
Other versions
JPS5846342B2 (en
Inventor
Yoshiharu Ozaki
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.)
Japan Science and Technology Agency
Shingijutsu Kaihatsu Jigyodan
Original Assignee
Research Development Corp of Japan
Shingijutsu Kaihatsu Jigyodan
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 Research Development Corp of Japan, Shingijutsu Kaihatsu Jigyodan filed Critical Research Development Corp of Japan
Priority to JP55160313A priority Critical patent/JPS5846342B2/en
Publication of JPS5784731A publication Critical patent/JPS5784731A/en
Publication of JPS5846342B2 publication Critical patent/JPS5846342B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Silicon Compounds (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Catalysts (AREA)
  • Glanulating (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

PURPOSE: To easily prepare a perfectly round ceramic bead, by dropping a mixture of one or more kinds of ceramic sols into a liquid consisting of two layers with different specific gravities to prepare a bead and make the same gel.
CONSTITUTION: A ceramic sol is prepared by hydrolyzing an alkoxide of a metal such as Al, Mg or Si. The resulting sol is dropped into a two-layered liquid comprising a high b.p. liquid, prepared by adding a surfactant to 2-ethyl-1- hexanol, 2-heptanol or the like, having a specific gravity smaller than that of the sol and immiscible with water and a liquid, such as bromoform or carbon tetrachloride, having a specific gravity larger than that of the sol and smaller than a gel. The sol falls down through the upper high b.p. liquid layer to form a bead and gel. Said sol is held at an interface of the two liquids until it perfectly gels and keeps a bead form and thereafter, a gel bead precipitates through a lower liquid layer as such, which is then separated, dried and baked to prepare a small ceramic bead.
COPYRIGHT: (C)1982,JPO&Japio
JP55160313A 1980-11-14 1980-11-14 Ceramic ball manufacturing method Expired JPS5846342B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55160313A JPS5846342B2 (en) 1980-11-14 1980-11-14 Ceramic ball manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55160313A JPS5846342B2 (en) 1980-11-14 1980-11-14 Ceramic ball manufacturing method

Publications (2)

Publication Number Publication Date
JPS5784731A true JPS5784731A (en) 1982-05-27
JPS5846342B2 JPS5846342B2 (en) 1983-10-15

Family

ID=15712250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55160313A Expired JPS5846342B2 (en) 1980-11-14 1980-11-14 Ceramic ball manufacturing method

Country Status (1)

Country Link
JP (1) JPS5846342B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616503A1 (en) * 1985-05-17 1986-11-20 Mitsubishi Mining & Cement Co. Ltd., Tokio/Tokyo METHOD FOR PRODUCING CERAMIC MICROBALLS
JPS6349247A (en) * 1986-08-14 1988-03-02 Kouranshiya:Kk Formation of powder slurry
US5214884A (en) * 1991-04-23 1993-06-01 Kabushiki Kaisha Toshiba Ball polishing apparatus and method for the same
US7211233B2 (en) * 2001-05-23 2007-05-01 Svenska Rymdaktiebolaget Method of preparing granules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12384416B2 (en) 2019-12-04 2025-08-12 Mitsubishi Electric Corporation Vehicle control device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616503A1 (en) * 1985-05-17 1986-11-20 Mitsubishi Mining & Cement Co. Ltd., Tokio/Tokyo METHOD FOR PRODUCING CERAMIC MICROBALLS
JPS61263628A (en) * 1985-05-17 1986-11-21 Mitsubishi Mining & Cement Co Ltd Production of ceramic microglobe
US4746468A (en) * 1985-05-17 1988-05-24 Mitsubishi Mining & Cement Co., Ltd. Method of preparing ceramic microspheres
JPS6349247A (en) * 1986-08-14 1988-03-02 Kouranshiya:Kk Formation of powder slurry
US5214884A (en) * 1991-04-23 1993-06-01 Kabushiki Kaisha Toshiba Ball polishing apparatus and method for the same
US7211233B2 (en) * 2001-05-23 2007-05-01 Svenska Rymdaktiebolaget Method of preparing granules

Also Published As

Publication number Publication date
JPS5846342B2 (en) 1983-10-15

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