KR20010084475A - Fabrication of low density hollow ceramic ball - Google Patents

Fabrication of low density hollow ceramic ball Download PDF

Info

Publication number
KR20010084475A
KR20010084475A KR1020000009540A KR20000009540A KR20010084475A KR 20010084475 A KR20010084475 A KR 20010084475A KR 1020000009540 A KR1020000009540 A KR 1020000009540A KR 20000009540 A KR20000009540 A KR 20000009540A KR 20010084475 A KR20010084475 A KR 20010084475A
Authority
KR
South Korea
Prior art keywords
ceramic
low density
sio2
binder
hollowed
Prior art date
Application number
KR1020000009540A
Other languages
Korean (ko)
Inventor
송승구
나영수
이송우
이창한
김도한
Original Assignee
송승구
나영수
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 송승구, 나영수 filed Critical 송승구
Priority to KR1020000009540A priority Critical patent/KR20010084475A/en
Publication of KR20010084475A publication Critical patent/KR20010084475A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/91—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics involving the removal of part of the materials of the treated articles, e.g. etching
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6028—Shaping around a core which is removed later

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: Provided is a manufacturing method of low density hollowed ceramic spheres by coating ceramic powder on polymeric beads and heating at high temperature (>600deg.C), which controls diameters of products according to the size of beads and makes hollowed spheres easily. CONSTITUTION: The method comprises the steps of: spreading a binder(B) such as bonds, silicon, etc. which is completely oxidized at high temperature on a polymeric bead(A); coating a ceramic powder(C) on the surface of binder; heating at 600-1500deg.C to remove polymeric bead and binder, and to melt ceramic powder, resulting in a hollowed ceramic sphere(D). The used ceramic powders, being prepared by sol-gel process, are as follows: SiO2, TiO2, ZrO2, Al2O3, BaTiO3, LiNbO3, KTaO3, In2O-SnO, LiAlO3, Na2O-Ba2O3-SiO2, and SiO2-TiO2.

Description

저밀도 중공 세라믹 구의 제조{Fabrication of low density hollow ceramic ball}Fabrication of low density hollow ceramic ball

본 발명의 목적은 가벼운 중공된 세라믹 구를 만드는 것이다.It is an object of the present invention to make light hollow ceramic spheres.

본 발명이 속하는 기존의 기술은 세라믹 속에 발포제나 GAS 등을 주입하여세라믹 구의 내부에 기공을 형성 시켜 저밀도 세라믹 구를 만들었다. 이러한 방법은 공극형성과 입자 크기 및 일정한 밀도를 지닌 세라믹 구를 만드는데 어려움이 많았다. 그러나 본 제조법을 사용한 세라믹 구는 사용된 고분자 bead의 크기에 따라 제품의 직경을 다양하게 변화시킬 수 있고, 직경 분포를 일정하게 유지시키며, 소량의 세라믹 분말을 이용하여 원하는 제품을 만들 수 있어 경제적이다. 그리고 재료의 종류, 승온 온도 등의 제조 조건에 영향을 받지 않는 안정된 내부의 빈 공간을 확보할 수 있어 쉽게 제품 품질을 일정하게 유지할 수 있다.Conventional technology to which the present invention belongs is made of a low density ceramic sphere by injecting a blowing agent or GAS into the ceramic to form pores in the ceramic sphere. This method was difficult to form ceramic spheres with pore formation, particle size and constant density. However, the ceramic sphere using this method is economical because it can vary the diameter of the product according to the size of the polymer bead used, keep the diameter distribution constant, and make the desired product using a small amount of ceramic powder. In addition, it is possible to secure a stable internal empty space that is not affected by the manufacturing conditions such as the type of material, the elevated temperature, it is possible to easily maintain a constant product quality.

본 발명이 이루고자 하는 기술적 과제는 다양하고 넓은 범위에 사용될 수 있는 저밀도 중공 세라믹 구를 만드는 것이다.The technical problem to be achieved by the present invention is to make a low density hollow ceramic sphere that can be used in a wide variety of ranges.

제 1 도는 저밀도 중공 세라믹 구를 만드는 제조 과정을 절단한 형태로 나타낸 것임1 is a cut-away view of the manufacturing process for making a low density hollow ceramic sphere

제 2 도는 제조된 중공 세라믹 구의 사진을 나타냄2 shows a photograph of the manufactured hollow ceramic sphere

(a) 중공 세라믹 구의 전체사진(a) Overall picture of hollow ceramic spheres

(b) 중공 세라믹 구의 껍질의 단면 SEM 사진(b) SEM image of cross section of shell of hollow ceramic sphere

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

A - 고분자 beadA-polymer bead

B - 접착제 물질 ( 각종 본드류, 실리콘 등 )B-adhesive materials (various bonds, silicones, etc.)

C - 세라믹 분말C-ceramic powder

D - 저밀도 중공 세라믹 구D-low density hollow ceramic sphere

이하 본 발명의 실시예를 첨부도면에 따라 공정별로 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail by process according to the accompanying drawings.

도 1은 본 발명의 제조 공정도이며, 도2는 본 발명으로 만들어진 저밀도 세라믹 구의 실제 사진이다. 도 1에서의 공정을 상세히 설명하면, 우선 고온에서 완전 산화되어 없어지는 다양한 크기의 고분자 bead(A)에 각종 접착제 물질(B : 각종 접착제 및 실리콘 등 )을 도포한다(1). 그리고 (2)와 같이 각종 세라믹 분말을(C) 접착성 물질 표면에 또 다시 도포시킨 후 (3)과 같이 고온( 600도 - 1500도 )에서 가열하여 고분자 bead(A)와 접착성물질(B)를 완전히 열분해시켜 제거하고 세라믹의 표면 용융온도( 600도 - 1500도)까지 가열하여 중공 세라믹 구를(D) 제작한다.1 is a manufacturing process diagram of the present invention, Figure 2 is a real picture of a low density ceramic sphere made with the present invention. Referring to the process in Figure 1, first, various adhesive materials (B: various adhesives, silicones, etc.) are applied to polymer beads (A) of various sizes that are completely oxidized at high temperatures (1). Then, as shown in (2), various ceramic powders are applied to the surface of the adhesive material again (C), and then heated at a high temperature (600 to 1500 degrees) as shown in (3) to polymer bead (A) and adhesive material (B). ) Is completely pyrolyzed and heated to the surface melting temperature of the ceramic (600 ° C-1500 ° C) to form a hollow ceramic sphere (D).

각종 sol-gel 법으로 만들어 지는 SiO2, TiO2, ZrO2, Al2O3, BaTiO3, LiNbO3, KTaO3, In2O-SnO, LiAlO3, Na2O-Ba2O3-SiO2, SiO2-TiO2등을 본 발명에서 만들어진 저밀도 중공 세라믹 구의 표면에 도포시켜 소성 시킬 수 있어 다양한 기상과 액상의 촉매반응기에 사용될 수 있으며, 환경처리에 있어 미생물 부착 담체로 사용할 수 있다.SiO 2 , TiO 2 , ZrO 2 , Al 2 O 3 , BaTiO 3 , LiNbO 3 , KTaO 3 , In 2 O-SnO, LiAlO3, Na 2 O-Ba 2 O 3 -SiO 2 , SiO 2 -TiO 2 and the like can be applied to the surface of the low-density hollow ceramic sphere made in the present invention and calcined, and can be used in various gas phase and liquid catalytic reactors, and can be used as a microorganism attachment carrier in environmental treatment.

Claims (1)

고분자 bead에 각종 접착제를 사용하여 다양한 세라믹 분말을 도포시킨 후 고온에서( 600도 이상 ) 내부의 고분자 bead와 접착제를 제거하고, 세라믹 분말의 표면 용융점에서 가열하여 중공된 저밀도 세라믹 구를 만드는 제조법.A method for making hollow low-density ceramic spheres by applying various adhesives to polymer beads using various adhesives, removing the polymer beads and adhesives at high temperatures (more than 600 degrees), and heating them at the surface melting point of ceramic powders.
KR1020000009540A 2000-02-25 2000-02-25 Fabrication of low density hollow ceramic ball KR20010084475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020000009540A KR20010084475A (en) 2000-02-25 2000-02-25 Fabrication of low density hollow ceramic ball

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020000009540A KR20010084475A (en) 2000-02-25 2000-02-25 Fabrication of low density hollow ceramic ball

Publications (1)

Publication Number Publication Date
KR20010084475A true KR20010084475A (en) 2001-09-06

Family

ID=19650279

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020000009540A KR20010084475A (en) 2000-02-25 2000-02-25 Fabrication of low density hollow ceramic ball

Country Status (1)

Country Link
KR (1) KR20010084475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975891A (en) * 2018-08-27 2018-12-11 佛山石湾鹰牌陶瓷有限公司 Ink-jet infiltration spends beautiful matter polished bricks and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055787A (en) * 1979-08-01 1981-03-11 Ass Cement Co Closed cellular hollow refractory spheres
JPS6456137A (en) * 1987-07-22 1989-03-03 Norddeutsche Affinerie Method of manufacturing hollow balls of metal or ceramic
JPH05229881A (en) * 1992-02-18 1993-09-07 Murata Mfg Co Ltd Production of ceramic hollow body
KR960012733A (en) * 1994-09-16 1996-04-20 김광호 Phase locked loop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055787A (en) * 1979-08-01 1981-03-11 Ass Cement Co Closed cellular hollow refractory spheres
JPS6456137A (en) * 1987-07-22 1989-03-03 Norddeutsche Affinerie Method of manufacturing hollow balls of metal or ceramic
JPH05229881A (en) * 1992-02-18 1993-09-07 Murata Mfg Co Ltd Production of ceramic hollow body
KR960012733A (en) * 1994-09-16 1996-04-20 김광호 Phase locked loop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108975891A (en) * 2018-08-27 2018-12-11 佛山石湾鹰牌陶瓷有限公司 Ink-jet infiltration spends beautiful matter polished bricks and preparation method thereof
CN108975891B (en) * 2018-08-27 2021-11-05 佛山石湾鹰牌陶瓷有限公司 Ink-jet flower-penetrating jade polished brick and preparation method thereof

Similar Documents

Publication Publication Date Title
JP7418154B2 (en) Glass components with custom composition profiles and their preparation methods
JP5281879B2 (en) Method for joining parts made of high silica materials
JP2022512327A (en) Engineeringly designed feedstock for additional manufacturing of glass
EP0219383B1 (en) Use of sinterable powders of silicon carbide having a particular grain size distribution for producing porous ceramic filter elements, and ceramics thus obtained
CA2384288A1 (en) Highly filled sio2 dispersion, methods for the production thereof and its use
JP2001072427A (en) Sintered material
WO2016118151A1 (en) Susceptor materials for 3d printing using microwave processing
KR20090068343A (en) Sio2 slurry for the production of quartz glass as well as the application of the slurry
KR100533101B1 (en) SiO2 SHAPED BODY WHICH HAS BEEN DENSIFIED FURTHER BY ELECTROPHORESIS, PROCESS FOR PRODUCING IT AND USE
KR900000789B1 (en) Method of forming a glass or ceramic product
KR20010084475A (en) Fabrication of low density hollow ceramic ball
Chen et al. Obtaining transparent silica glass from nano-silica hydrosol
US5938805A (en) Silica glass monolith fabricating method using sol-gel process
CN114426392B (en) Microscale glass based on three-dimensional direct writing and manufacturing method thereof
KR100288751B1 (en) Method of fabricating sleeve for optical ferrule
KR101523499B1 (en) Method for producing raised marking on a glass object
JP2021513954A (en) Additive manufacturing method for manufacturing glass articles from suits
JP2006231826A (en) Form block for solidifying slurry and shaping method using it
JP2004339056A (en) Method of manufacturing optical fiber
JP2000001379A (en) Production of heat-insulating lightweight porcelain
Dylla-Spears et al. Deposition-based, indirect glass 3D printing
KR101714312B1 (en) Method for manufacturing silicon oxide structure which enable porosity control
JP2003206188A (en) Ceramic composite and method for producing the same
JP3067860B2 (en) How to make a silica-based optical waveguide
JPH0222183A (en) Production of porous ceramics

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application