KR960022397A - 탄화규소(SiC)질 요도구(窯道具)와 그의 제조방법 - Google Patents

탄화규소(SiC)질 요도구(窯道具)와 그의 제조방법 Download PDF

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KR960022397A
KR960022397A KR1019950005228A KR19950005228A KR960022397A KR 960022397 A KR960022397 A KR 960022397A KR 1019950005228 A KR1019950005228 A KR 1019950005228A KR 19950005228 A KR19950005228 A KR 19950005228A KR 960022397 A KR960022397 A KR 960022397A
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sic
weight
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KR100356736B1 (ko
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히로시 시라카와
오사무 야마카와
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시바타 마사하루
닛폰 가이시 가부시키가이샤
오가와 히로시
엔지케이 아드렉 가부시키가이샤
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    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0031—Treatment baskets for ceramic articles
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Products (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

최대입경이 4㎜ 이하인 SiC 분말에 대해 0.01∼0.7중량%의 V2O5, 0.01∼0.7중량%의 CaO 및 0.01∼5중량%의 점토를 첨가하여 얻은 분말체를 성형하고 이를 소성하여 이루어지는 SiC질 요도구로서, 당해 SiC질 요도구의 표층부와 중심부를 각각 X선 회절로 분말법에 의해 측정하여, CuKa선에 대한 2θ가 34.0°인 탄화규소의 회절피크의 높이에 대한, 2θ가 21.9°인 크리스토발라이트의 회절피크의 높이의 비를 구했을 때, 표충부의 상기 비의 값에 대한 중심부의 상기 비의 값의 비율이 20% 이상이며, 상온에 있어서의 항절강도(抗折强度)가, 1400℃에 있어서의 항절강도의 ±20%의 범위 내에 있음을 특징으로 하는 SiC질 요도구.

Description

탄화규소(SiC)질 요도구(窯道具)와 그의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (4)

  1. 최대입경이 4㎜ 이하인 SiC 분발에 대해 0.,01∼0.7중량%의 V2O5, 0.01∼0.7중량% 의 CaO 및 0.01∼5중량%의 점토를 첨가하여 얻은 분말체를 성형하고 이를 소성하여 이루어지는 SiC질 요도구로서, 당해 SiC질 요도구의 표층부와 중심부를 각각 X선 회절로 분말법에 의해 측정하여, CuKa선에 대한 2θ가 34.0°인 탄화규소의 회절피크의 높이에 대한, 2θ가 21.9°인 크리스토발라이트의 회절피크의 높이의 비를 구했을 때, 표충부의 상기 비의 값에 대한 중심부의 상기 비의 값의 비율이 20% 이상이며, 상온에 잇어서의 항절강도(抗折强度)가, 1400℃에 있어서의 항절강도의 ±20%의 범위 내에 있음을 특징으로 하는 SiC질 요도구.
  2. 최대입경이 4㎜ 이하인 SiC 분말에 대해 0.01∼0.7중량%의 V2O5, 0.01∼0.7중량% 의 CaO 및 0.01∼5중량%의 점토를 첨가하여 얻은 분말체를 적당량의 물 및 유기 바인더와 함게 혼련하여, 이를 소망형상에 성형하고, 얻는 성형체를 건조후, 700∼1100℃의 온도역(域)을 10시간 이상 걸려 승온하면서 소성하고, 다시 최고온도가 1300~1500℃의 범위에 있고, 또 1300℃ 이상의 온도역이 2∼10시간이 되는 조건으로 계속하여 소성을 행하는 것을 특징으로 하는 SiC질 요도구의 제조방법.
  3. 제2항에 있어서, 최대입경이 4㎜ 이하인 SiC 분말에 대해 0.01∼0.7중량%의 V2O5, 0.01∼0.7중량% 의 CaO 및 0.01∼5중량%의 점토를 첨가하여 얻은 분말체에, 다시금 5중량% 이하의 무정형 SiO2를 첨가하는 SiC질 요도구의 제조방법.
  4. 제2항에 있어서, 최대입경이 4㎜ 이하인 SiC 분말의 입도배합이 500μ 이상이 35∼50중량%, 88∼500μ이 20∼30중량%, 88μ 이하가 30∼35중량%인, SiC질 요도구의 제조방법.
    ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019950005228A 1994-12-27 1995-03-14 탄화규소(SiC)질 요도구와 그의 제조방법 KR100356736B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32526794A JP3373312B2 (ja) 1994-12-27 1994-12-27 ＳｉＣ質窯道具とその製造方法
JP94-325267 1994-12-27

Publications (2)

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KR960022397A true KR960022397A (ko) 1996-07-18
KR100356736B1 KR100356736B1 (ko) 2003-01-15

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KR1019950005228A KR100356736B1 (ko) 1994-12-27 1995-03-14 탄화규소(SiC)질 요도구와 그의 제조방법

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JP (1) JP3373312B2 (ko)
KR (1) KR100356736B1 (ko)
CN (1) CN1106565C (ko)
TW (1) TW310316B (ko)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4704111B2 (ja) * 2005-06-01 2011-06-15 日本碍子株式会社 酸化物結合炭化珪素質材料
JP5108311B2 (ja) * 2007-01-19 2012-12-26 日本碍子株式会社 酸化物結合炭化珪素質焼結体、及びその製造方法
EP2138474B1 (en) * 2008-06-23 2018-08-08 Imerys Kiln Furniture Hungary Ltd. Sic material
CN101654362B (zh) * 2009-08-31 2013-01-23 成都蜀冶新材料有限责任公司 一种氧氮化硅结合碳化硅高温陶瓷材料及其制备方法

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CN1106565C (zh) 2003-04-23
JPH08178548A (ja) 1996-07-12
TW310316B (ko) 1997-07-11
KR100356736B1 (ko) 2003-01-15
JP3373312B2 (ja) 2003-02-04
CN1125840A (zh) 1996-07-03

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