Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for producing sintered body, and sintered body
The invention provides a method for producing a sintered body and a sintered body. The present invention relates to a method for producing a rare earth element, comprising: a step for preparing a raw material mixture containing oxide particles containing at least one rare earth element (R1, Ce, Al, Ga) selected from the group consisting of Y, La, Gd, and Tb, optionally containing oxide particles containing Sc, in which the total molar ratio of R1 and Ce is 3 and the molar ratio of Ce is the product of a variable m and 3, which is 0.001-0.017 (inclusive) in the composition of the raw material mixture; the total molar ratio of Al, Ga, and Sc is a variable (k) greater than 5.25 and less than 19, the molar ratio of Al is a product of a variable (p) of 0.61-0.90 inclusive and the variable (k), and the molar ratio of Ga is a product of a variable (n) of 0.10-0.39 inclusive and the variable (k); a step for obtaining a molded body by molding the starting material mixture; and a step in which the molded body is fired to obtain a sintered body containing a rare earth aluminate crystal phase and an alumina phase in the range of 2.7-57.0 vol% (inclusive).
本发明提供烧结体的制造方法及烧结体。上述制造方法包括：准备原料混合物的步骤，上述原料混合物包含含有选自Y、La、Gd及Tb中的至少一种稀土类元素R1、Ce、Al、Ga的各元素的各氧化物粒子，任选包含含有Sc的氧化物粒子，在投料组成中，R1和Ce的合计的摩尔比为3，Ce的摩尔比为0.001以上且0.017以下的变量m与3之积，Al、Ga及Sc的合计的摩尔比为大于5.25且小于19的变量k，Al的摩尔比为0.61以上且0.90以下的变量p与变量k之积，Ga的摩尔比为0.10以上且0.39以下的变量n与变量k之积；对原料混合物进行成型而得到成型体的步骤；以及，对成型体进行烧成而得到包含稀土类铝酸盐结晶相和2.7体积％以上且57.0体积％以下的范围内的氧化铝相的烧结体的步骤。
Method for producing sintered body, and sintered body
The invention provides a method for producing a sintered body and a sintered body. The present invention relates to a method for producing a rare earth element, comprising: a step for preparing a raw material mixture containing oxide particles containing at least one rare earth element (R1, Ce, Al, Ga) selected from the group consisting of Y, La, Gd, and Tb, optionally containing oxide particles containing Sc, in which the total molar ratio of R1 and Ce is 3 and the molar ratio of Ce is the product of a variable m and 3, which is 0.001-0.017 (inclusive) in the composition of the raw material mixture; the total molar ratio of Al, Ga, and Sc is a variable (k) greater than 5.25 and less than 19, the molar ratio of Al is a product of a variable (p) of 0.61-0.90 inclusive and the variable (k), and the molar ratio of Ga is a product of a variable (n) of 0.10-0.39 inclusive and the variable (k); a step for obtaining a molded body by molding the starting material mixture; and a step in which the molded body is fired to obtain a sintered body containing a rare earth aluminate crystal phase and an alumina phase in the range of 2.7-57.0 vol% (inclusive).
本发明提供烧结体的制造方法及烧结体。上述制造方法包括：准备原料混合物的步骤，上述原料混合物包含含有选自Y、La、Gd及Tb中的至少一种稀土类元素R1、Ce、Al、Ga的各元素的各氧化物粒子，任选包含含有Sc的氧化物粒子，在投料组成中，R1和Ce的合计的摩尔比为3，Ce的摩尔比为0.001以上且0.017以下的变量m与3之积，Al、Ga及Sc的合计的摩尔比为大于5.25且小于19的变量k，Al的摩尔比为0.61以上且0.90以下的变量p与变量k之积，Ga的摩尔比为0.10以上且0.39以下的变量n与变量k之积；对原料混合物进行成型而得到成型体的步骤；以及，对成型体进行烧成而得到包含稀土类铝酸盐结晶相和2.7体积％以上且57.0体积％以下的范围内的氧化铝相的烧结体的步骤。
Method for producing sintered body, and sintered body
烧结体的制造方法及烧结体
YAMAMOTO TORU (Autor:in) / TAKETOMI SHOZO (Autor:in)
30.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
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G02F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,...
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Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von...
/
G03B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM
,
Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien
Sintered body, method for producing sintered body, powder, and sintered body
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Sintered body, method for producing sintered body, and member comprising sintered body
| Europäisches Patentamt | 2024