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CALCIUM CARBONATE RAW MATERIAL FOR SINTERED BODY, CALCIUM CARBONATE POROUS SINTERED BODY, CALCIUM CARBONATE DENSE SINTERED BODY, AND PRODUCTION METHOD THEREOF
To provide a calcium carbonate raw material for a sintered body in which a sintering temperature range of calcium carbonate is precisely controlled to prevent both discoloration and decrease in mechanical strength of the sintered calcium carbonate.SOLUTION: A calcium carbonate raw material for a sintered body is a mixture of calcium carbonate having a purity of 99.95 mass% or more and a compound of one or more metallic elements selected from the group consisting of calcium, silicon, aluminum, zinc, magnesium, barium, strontium, boron, tin, gallium, iron, titanium, zirconium and rare earth elements. The calcium carbonate sintered body raw material contains 0.01-10 mass% of the metal element compound based on the mass of the calcium carbonate raw material for the sintered body. Also provided are a production method of the calcium carbonate raw material for the sintered body, a dense sintered body of calcium carbonate using the calcium carbonate raw material for the sintered body, a calcium carbonate porous sintered body and a production method thereof.SELECTED DRAWING: Figure 3
【課題】炭酸カルシウム焼結体の変色と、機械的強度の低下とを共に防止するための、炭酸カルシウムの焼結温度域が精密に制御された焼結体原料炭酸カルシウムを提供する。【解決手段】純度が９９．９５質量％以上の炭酸カルシウムと、カルシウム、ケイ素、アルミニウム、亜鉛、マグネシウム、バリウム、ストロンチウム、ホウ素、スズ、ガリウム、鉄、チタン、ジルコニウムおよび希土類元素からなる群より選択される１種以上の金属元素の化合物と、を混合してなる、焼結体原料炭酸カルシウムであって、該金属元素の化合物を、該焼結体原料炭酸カルシウムの質量を基準として０．０１～１０質量％含有している、前記焼結体原料炭酸カルシウムとその製造方法、当該焼結体原料炭酸カルシウムを用いた炭酸カルシウム緻密質焼結体、炭酸カルシウム多孔質焼結体並びにそれらの製造方法を提供する。【選択図】図３
CALCIUM CARBONATE RAW MATERIAL FOR SINTERED BODY, CALCIUM CARBONATE POROUS SINTERED BODY, CALCIUM CARBONATE DENSE SINTERED BODY, AND PRODUCTION METHOD THEREOF
To provide a calcium carbonate raw material for a sintered body in which a sintering temperature range of calcium carbonate is precisely controlled to prevent both discoloration and decrease in mechanical strength of the sintered calcium carbonate.SOLUTION: A calcium carbonate raw material for a sintered body is a mixture of calcium carbonate having a purity of 99.95 mass% or more and a compound of one or more metallic elements selected from the group consisting of calcium, silicon, aluminum, zinc, magnesium, barium, strontium, boron, tin, gallium, iron, titanium, zirconium and rare earth elements. The calcium carbonate sintered body raw material contains 0.01-10 mass% of the metal element compound based on the mass of the calcium carbonate raw material for the sintered body. Also provided are a production method of the calcium carbonate raw material for the sintered body, a dense sintered body of calcium carbonate using the calcium carbonate raw material for the sintered body, a calcium carbonate porous sintered body and a production method thereof.SELECTED DRAWING: Figure 3
【課題】炭酸カルシウム焼結体の変色と、機械的強度の低下とを共に防止するための、炭酸カルシウムの焼結温度域が精密に制御された焼結体原料炭酸カルシウムを提供する。【解決手段】純度が９９．９５質量％以上の炭酸カルシウムと、カルシウム、ケイ素、アルミニウム、亜鉛、マグネシウム、バリウム、ストロンチウム、ホウ素、スズ、ガリウム、鉄、チタン、ジルコニウムおよび希土類元素からなる群より選択される１種以上の金属元素の化合物と、を混合してなる、焼結体原料炭酸カルシウムであって、該金属元素の化合物を、該焼結体原料炭酸カルシウムの質量を基準として０．０１～１０質量％含有している、前記焼結体原料炭酸カルシウムとその製造方法、当該焼結体原料炭酸カルシウムを用いた炭酸カルシウム緻密質焼結体、炭酸カルシウム多孔質焼結体並びにそれらの製造方法を提供する。【選択図】図３
CALCIUM CARBONATE RAW MATERIAL FOR SINTERED BODY, CALCIUM CARBONATE POROUS SINTERED BODY, CALCIUM CARBONATE DENSE SINTERED BODY, AND PRODUCTION METHOD THEREOF
焼結体原料炭酸カルシウム、炭酸カルシウム多孔質焼結体、炭酸カルシウム緻密質焼結体ならびにそれらの製造方法
UMEMOTO SHOTA (author) / UNUMA HIDEO (author)
2023-02-16
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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