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1. WO2007010831 - イットリア焼結体ならびに耐食性部材、その製造方法

パーマリンク
公開番号 WO/2007/010831
公開日 25.01.2007
国際出願番号 PCT/JP2006/313985
国際出願日 13.07.2006
IPC
C04B 35/50 2006.1
C化学;冶金
04セメント;コンクリート;人造石;セラミックス;耐火物
B石灰;マグネシア;スラグ;セメント;その組成物,例.モルタル,コンクリートまたは類似の建築材料;人造石;セラミックス;耐火物;天然石の処理
35組成に特徴を持つ成形セラミック製品;セラミック組成;セラミック製品を製造するための無機化合物粉末の処理
50希土類化合物を基とするもの
CPC
C04B 2235/3409
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
3409Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
C04B 2235/3821
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3817Carbides
3821Boron carbides
C04B 2235/386
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
30Constituents and secondary phases not being of a fibrous nature
38Non-oxide ceramic constituents or additives
3852Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
386Boron nitrides
C04B 2235/656
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
656characterised by specific heating conditions during heat treatment
C04B 2235/77
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
70Aspects relating to sintered or melt-casted ceramic products
74Physical characteristics
77Density
C04B 2235/80
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
70Aspects relating to sintered or melt-casted ceramic products
80Phases present in the sintered or melt-cast ceramic products other than the main phase
出願人
  • TOTO株式会社 TOTO LTD. [JP]/[JP] (AllExceptUS)
  • 井出 貴之 IDE, Takayuki [JP]/[JP] (UsOnly)
  • 清原 正勝 KIYOHARA, Masakatsu [JP]/[JP] (UsOnly)
発明者
  • 井出 貴之 IDE, Takayuki
  • 清原 正勝 KIYOHARA, Masakatsu
代理人
  • 小山 有 KOYAMA, Yuu
優先権情報
2005-20683015.07.2005JP
2006-19240813.07.2006JP
公開言語 (言語コード) 日本語 (ja)
出願言語 (言語コード) 日本語 (JA)
指定国 (国コード)
発明の名称
(EN) SINTERED YTTRIA, ANTICORROSION MEMBER AND PROCESS FOR PRODUCING THE SAME
(FR) YTTRIA FRITTÉ, ÉLÉMENT ANTICORROSIF ET SON PROCÉDÉ DE PRODUCTION
(JA) イットリア焼結体ならびに耐食性部材、その製造方法
front page image
要約
(EN) [PROBLEMS] To provide a sintered yttria (Y2O3) of high density excelling in plasma resistance. [MEANS FOR SOLVING PROBLEMS] There is provided a sintered yttria (Y2O3) comprising yttria (Y2O3) crystals and Y3BO6 crystals as constituent crystals thereof. This sintered yttria (Y2O3) is obtained by adding 0.02 to less than 10 wt.%, in terms of boron oxide (B2O3), of boron compound to yttria (Y2O3) powder, molding the mixed powder, and sintering the same at 1300° to below 1600°C.
(FR) Le problème à résoudre dans le cadre de la présente invention consiste à fournir un yttria fritté (Y2O3) de haute densité excellent en termes de résistance au plasma. La solution proposée est de fournir un yttria fritté (Y2O3) comprenant des cristaux d’yttria (Y2O3) et des cristaux de Y3BO6 en tant que cristaux constitutifs de celui-ci. Cet yttria fritté (Y2O3) est obtenu en ajoutant de 0,02 à moins de 10 % en poids, sous forme d’oxyde de bore (B2O3), de composé de bore à la poudre d’yttria (Y2O3), en moulant la poudre mélangée, et en frittant celle-ci à une température de 1300 °C à moins de 1600 °C.
(JA) 　 【課題】　高密度で耐プラズマ性に優れたイットリア（Ｙ２Ｏ３）焼結体を提供する。 【解決手段】　イットリア（Ｙ２Ｏ３）焼結体をイットリア（Ｙ２Ｏ３）結晶及びＹ３ＢＯ６結晶をその焼結体の構成結晶として含む構成とする。斯かるイットリア（Ｙ２Ｏ３）焼結体を得るには、イットリア（Ｙ２Ｏ３）粉末にホウ素化合物を酸化ホウ素（Ｂ２Ｏ３）に換算して０．０２ｗｔ以上１０ｗｔ％未満の割合で添加し、この混合粉末を成形した後、１３００°C以上１６００°C未満で焼結させる。
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