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Preparation method of high-entropy oxide ceramic fiber material
The invention belongs to the technical field of ceramic fiber materials, and discloses a preparation method of a high-entropy oxide ceramic fiber material. The preparation method comprises the steps: preparing high-entropy oxide ceramic fibers through a template impregnation method, taking viscose as a template, and subjecting the viscose to vacuum impregnation in a metal nitrate mixed solution, wherein metal nitrate in the metal nitrate mixed solution is formed by mixing at least four of cerous nitrate, zirconium nitrate, yttrium nitrate, hafnium nitrate, titanium nitrate and lanthanum nitrate in equal molar mass; and after the impregnation,performing washing, centrifuging, drying and heat treatment to obtain the high-entropy oxide ceramic fiber. According to the preparation method, liquid-phase burdening is adopted, the method can guarantee that multiple metal elements are mixed uniformly, the prepared high-entropy oxide ceramic fiber material is uniform in morphology, the phase structure is of a fluorite type, and the proportion of elements contained in the fiber material is close to equal moles.
本发明属于陶瓷纤维材料技术领域，公开了一种高熵氧化物陶瓷纤维材料的制备方法，制备方法采用模板浸渍法制备高熵氧化物陶瓷纤维，以粘胶纤维为模板，将其真空浸渍于金属硝酸盐混合溶液中，其中，金属硝酸盐混合溶液中的金属硝酸盐由硝酸铈、硝酸锆、硝酸钇、硝酸铪、硝酸钛、硝酸镧中的至少四种等摩尔质量混合而成，浸渍后经水洗、离心、烘干、热处理之后高熵氧化物陶瓷纤维。本发明采用液相配料，可确保多种金属元素混合均匀，所制备的高熵氧化物陶瓷纤维材料形貌均匀，相结构为萤石型，所含元素比例接近等摩尔。
Preparation method of high-entropy oxide ceramic fiber material
The invention belongs to the technical field of ceramic fiber materials, and discloses a preparation method of a high-entropy oxide ceramic fiber material. The preparation method comprises the steps: preparing high-entropy oxide ceramic fibers through a template impregnation method, taking viscose as a template, and subjecting the viscose to vacuum impregnation in a metal nitrate mixed solution, wherein metal nitrate in the metal nitrate mixed solution is formed by mixing at least four of cerous nitrate, zirconium nitrate, yttrium nitrate, hafnium nitrate, titanium nitrate and lanthanum nitrate in equal molar mass; and after the impregnation,performing washing, centrifuging, drying and heat treatment to obtain the high-entropy oxide ceramic fiber. According to the preparation method, liquid-phase burdening is adopted, the method can guarantee that multiple metal elements are mixed uniformly, the prepared high-entropy oxide ceramic fiber material is uniform in morphology, the phase structure is of a fluorite type, and the proportion of elements contained in the fiber material is close to equal moles.
本发明属于陶瓷纤维材料技术领域，公开了一种高熵氧化物陶瓷纤维材料的制备方法，制备方法采用模板浸渍法制备高熵氧化物陶瓷纤维，以粘胶纤维为模板，将其真空浸渍于金属硝酸盐混合溶液中，其中，金属硝酸盐混合溶液中的金属硝酸盐由硝酸铈、硝酸锆、硝酸钇、硝酸铪、硝酸钛、硝酸镧中的至少四种等摩尔质量混合而成，浸渍后经水洗、离心、烘干、热处理之后高熵氧化物陶瓷纤维。本发明采用液相配料，可确保多种金属元素混合均匀，所制备的高熵氧化物陶瓷纤维材料形貌均匀，相结构为萤石型，所含元素比例接近等摩尔。
Preparation method of high-entropy oxide ceramic fiber material
一种高熵氧化物陶瓷纤维材料的制备方法
YAN SENWANG (author) / SUN XIAOFEI (author) / WANG GANG (author) / ZHANG LEI (author) / LI HONGYU (author) / LI HONGXIA (author)
2021-12-07
Patent
Electronic Resource
Chinese
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