Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ytterbium, gadolinium and yttrium three-element co-doped nano zirconia ceramic powder and preparation method thereof
The invention discloses ytterbium, gadolinium and yttrium three-element co-doped nano zirconia ceramic powder and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a mixed solution of ytterbium salt, gadolinium salt, yttrium salt and zirconium salt solution; S2, adding a precipitator into the mixed solution obtained in the step S1, and conducting standing and aging to obtain hydroxide colloid; S3, performing cross-flow washing separation and colloidal particle refinement on the obtained hydroxide colloid to obtain hydroxide precipitate; S4, mixing the obtained hydroxide precipitate with a dispersing agent, and performing distillation and carbonization treatment to obtain powder; S5, carrying out grinding treatment on the powder obtained in the step S4 through a double-roller machine, and then carrying out high-temperature calcination; and S6, subjecting the powder to air jet pulverization, so as to obtain nano-powder. The nano-powder has good high-temperature stability, low thermal conductivity and high thermal expansion coefficient, and the preparation method is simple in process, few in flow, easy in parameter control and suitable for continuous large-scale production.
本发明公开了一种镱、钆和钇三元素共掺纳米氧化锆陶瓷粉体及其制备方法。制备方法包括如下步骤：S1、配制镱盐、钆盐、钇盐和锆盐溶液的混合溶液；S2、向步骤S1得到的混合溶液中加入沉淀剂，静置老化后得到氢氧化物胶体；S3、将获得的氢氧化物胶体进行错流洗涤分离和胶粒细化，获得氢氧化物沉淀；S4、将获得的氢氧化物沉淀与分散剂进行混合后蒸馏和碳化处理，获得粉体；S5、通过对辊机对步骤S4获得粉体进行研磨处理后高温煅烧；S6、将粉体进行气流粉碎得纳米粉体。本发明的纳米粉体且均具有较好的高温稳定性、较低的热导率和较高的热膨胀系数，本发明制备方法工艺简单、流程少、参数易于控制，可适合连续大规模化生产。
Ytterbium, gadolinium and yttrium three-element co-doped nano zirconia ceramic powder and preparation method thereof
The invention discloses ytterbium, gadolinium and yttrium three-element co-doped nano zirconia ceramic powder and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a mixed solution of ytterbium salt, gadolinium salt, yttrium salt and zirconium salt solution; S2, adding a precipitator into the mixed solution obtained in the step S1, and conducting standing and aging to obtain hydroxide colloid; S3, performing cross-flow washing separation and colloidal particle refinement on the obtained hydroxide colloid to obtain hydroxide precipitate; S4, mixing the obtained hydroxide precipitate with a dispersing agent, and performing distillation and carbonization treatment to obtain powder; S5, carrying out grinding treatment on the powder obtained in the step S4 through a double-roller machine, and then carrying out high-temperature calcination; and S6, subjecting the powder to air jet pulverization, so as to obtain nano-powder. The nano-powder has good high-temperature stability, low thermal conductivity and high thermal expansion coefficient, and the preparation method is simple in process, few in flow, easy in parameter control and suitable for continuous large-scale production.
本发明公开了一种镱、钆和钇三元素共掺纳米氧化锆陶瓷粉体及其制备方法。制备方法包括如下步骤：S1、配制镱盐、钆盐、钇盐和锆盐溶液的混合溶液；S2、向步骤S1得到的混合溶液中加入沉淀剂，静置老化后得到氢氧化物胶体；S3、将获得的氢氧化物胶体进行错流洗涤分离和胶粒细化，获得氢氧化物沉淀；S4、将获得的氢氧化物沉淀与分散剂进行混合后蒸馏和碳化处理，获得粉体；S5、通过对辊机对步骤S4获得粉体进行研磨处理后高温煅烧；S6、将粉体进行气流粉碎得纳米粉体。本发明的纳米粉体且均具有较好的高温稳定性、较低的热导率和较高的热膨胀系数，本发明制备方法工艺简单、流程少、参数易于控制，可适合连续大规模化生产。
Ytterbium, gadolinium and yttrium three-element co-doped nano zirconia ceramic powder and preparation method thereof
一种镱、钆和钇三元素共掺纳米氧化锆陶瓷粉体及其制备方法
JIN HONGYUN (Autor:in) / LUO LIRONG (Autor:in) / DUAN SHUAISHUAI (Autor:in) / HOU SHU'EN (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
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