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Magnesium-stabilized zirconia foamed ceramic and preparation method thereof
The invention belongs to the technical field of zirconium oxide foamed ceramics, and particularly relates to magnesium-stabilized zirconia foamed ceramic and a preparation method thereof. The preparation method comprises the following steps: S1, soaking polyurethane foam in a sodium carboxymethyl cellulose solution after being subjected to alkali washing, and obtaining a foam matrix after drying; s2, mixing the magnesium-stabilized zirconia powder, a PVA aqueous solution, a styrene-maleic anhydride copolymer, xanthan gum and tributyl phosphate, and grinding to obtain ceramic slurry; s3, soaking the foam matrix in the ceramic slurry, and then performing centrifugal spin-drying and drying to obtain a primary product; s4, repeating the step S3 to obtain a semi-finished product; and S5, sintering the semi-finished product for 9-15 hours, and keeping the temperature at 1600 DEG C for 2 hours to obtain the magnesium-stabilized zirconia foamed ceramic. The volume density of the magnesium-stabilized zirconia foamed ceramic prepared by the method is 0.7-1.1 g/cm < 3 >, and the magnesium-stabilized zirconia foamed ceramic has the porosity of 80% or more and the bending strength of 2.45 MPa or more.
本发明属于氧化锆泡沫陶瓷技术领域，特别涉及一种镁稳定氧化锆泡沫陶瓷及其制备方法，包括如下步骤：S1、将聚氨酯泡沫进行碱洗后浸渍在羧甲基纤维素钠溶液中，烘干后获得泡沫基体；S2、将镁稳定氧化锆粉体、PVA水溶液、苯乙烯马来酸酐共聚物、黄原胶和磷酸三丁脂混合并进行研磨，获得陶瓷浆料；S3、将泡沫基体浸渍在陶瓷浆料中，然后离心甩干并烘干，获得初级品；S4、重复S3的步骤，获得半成品；S5、将半成品烧结9～15小时，并在1600℃保温2h，获得镁稳定氧化锆泡沫陶瓷。本发明所制备得到的镁稳定氧化锆泡沫陶瓷体积密度为0.7～1.1g/cm3，具有80％及以上的孔隙率和2.45MPa及以上的抗弯强度。
Magnesium-stabilized zirconia foamed ceramic and preparation method thereof
The invention belongs to the technical field of zirconium oxide foamed ceramics, and particularly relates to magnesium-stabilized zirconia foamed ceramic and a preparation method thereof. The preparation method comprises the following steps: S1, soaking polyurethane foam in a sodium carboxymethyl cellulose solution after being subjected to alkali washing, and obtaining a foam matrix after drying; s2, mixing the magnesium-stabilized zirconia powder, a PVA aqueous solution, a styrene-maleic anhydride copolymer, xanthan gum and tributyl phosphate, and grinding to obtain ceramic slurry; s3, soaking the foam matrix in the ceramic slurry, and then performing centrifugal spin-drying and drying to obtain a primary product; s4, repeating the step S3 to obtain a semi-finished product; and S5, sintering the semi-finished product for 9-15 hours, and keeping the temperature at 1600 DEG C for 2 hours to obtain the magnesium-stabilized zirconia foamed ceramic. The volume density of the magnesium-stabilized zirconia foamed ceramic prepared by the method is 0.7-1.1 g/cm < 3 >, and the magnesium-stabilized zirconia foamed ceramic has the porosity of 80% or more and the bending strength of 2.45 MPa or more.
本发明属于氧化锆泡沫陶瓷技术领域，特别涉及一种镁稳定氧化锆泡沫陶瓷及其制备方法，包括如下步骤：S1、将聚氨酯泡沫进行碱洗后浸渍在羧甲基纤维素钠溶液中，烘干后获得泡沫基体；S2、将镁稳定氧化锆粉体、PVA水溶液、苯乙烯马来酸酐共聚物、黄原胶和磷酸三丁脂混合并进行研磨，获得陶瓷浆料；S3、将泡沫基体浸渍在陶瓷浆料中，然后离心甩干并烘干，获得初级品；S4、重复S3的步骤，获得半成品；S5、将半成品烧结9～15小时，并在1600℃保温2h，获得镁稳定氧化锆泡沫陶瓷。本发明所制备得到的镁稳定氧化锆泡沫陶瓷体积密度为0.7～1.1g/cm3，具有80％及以上的孔隙率和2.45MPa及以上的抗弯强度。
Magnesium-stabilized zirconia foamed ceramic and preparation method thereof
一种镁稳定氧化锆泡沫陶瓷及其制备方法
YANG QIANGWEN (Autor:in) / YOU YONGXIN (Autor:in) / GAO BING (Autor:in) / LIN LIN (Autor:in) / YE LIZHEN (Autor:in)
31.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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