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Densified cordierite ceramic with pure-phase structure and preparation method of densified cordierite ceramic
The invention provides a densified cordierite ceramic with a pure-phase structure and a preparation method of the densified cordierite ceramic, and belongs to the technical field of ceramic materials. According to the method, the coal gangue is subjected to light burning for carbon removal, so that carbon elements in the coal gangue can be removed, and the influence of excessive carbon element content on the structure and performance of the cordierite ceramic during subsequent high-temperature sintering is avoided; the cordierite ceramic precursor powder is subjected to compression molding, so that most of air in a green body can be removed, and the compactness of the cordierite ceramic is improved; according to the present invention, the rapid sintering of the cordierite ceramic can be achieved by using the rapid heating rate and the rapid cooling rate during the sintering process so as to easily reduce the cost, and the rapid sintering can further achieve the ceramic densification promotion effect; therefore, the densified cordierite ceramic which is comparable with pure chemical reagent synthesis and has a pure-phase structure can be prepared more easily.
本发明提供了一种具有纯相结构的致密化堇青石陶瓷及其制备方法，属于陶瓷材料技术领域。本发明通过对煤矸石进行轻烧除碳，可以去除煤矸石中的碳元素，避免后续高温烧结时碳元素含量过多对堇青石陶瓷的结构和性能产生影响；通过对堇青石陶瓷前驱体粉末进行压制成型，可以去除素胚中大部分的空气，从而提高堇青石陶瓷的致密性；通过在烧结过程中采用极快的升温速率与降温速率，不仅能够实现对堇青石陶瓷的快速烧结，易于降低成本，同时快速烧结还能够起到促进陶瓷致密化的作用，从而更容易制备得到可与纯化学试剂合成相媲美的具有纯相结构的致密化堇青石陶瓷。
Densified cordierite ceramic with pure-phase structure and preparation method of densified cordierite ceramic
The invention provides a densified cordierite ceramic with a pure-phase structure and a preparation method of the densified cordierite ceramic, and belongs to the technical field of ceramic materials. According to the method, the coal gangue is subjected to light burning for carbon removal, so that carbon elements in the coal gangue can be removed, and the influence of excessive carbon element content on the structure and performance of the cordierite ceramic during subsequent high-temperature sintering is avoided; the cordierite ceramic precursor powder is subjected to compression molding, so that most of air in a green body can be removed, and the compactness of the cordierite ceramic is improved; according to the present invention, the rapid sintering of the cordierite ceramic can be achieved by using the rapid heating rate and the rapid cooling rate during the sintering process so as to easily reduce the cost, and the rapid sintering can further achieve the ceramic densification promotion effect; therefore, the densified cordierite ceramic which is comparable with pure chemical reagent synthesis and has a pure-phase structure can be prepared more easily.
本发明提供了一种具有纯相结构的致密化堇青石陶瓷及其制备方法，属于陶瓷材料技术领域。本发明通过对煤矸石进行轻烧除碳，可以去除煤矸石中的碳元素，避免后续高温烧结时碳元素含量过多对堇青石陶瓷的结构和性能产生影响；通过对堇青石陶瓷前驱体粉末进行压制成型，可以去除素胚中大部分的空气，从而提高堇青石陶瓷的致密性；通过在烧结过程中采用极快的升温速率与降温速率，不仅能够实现对堇青石陶瓷的快速烧结，易于降低成本，同时快速烧结还能够起到促进陶瓷致密化的作用，从而更容易制备得到可与纯化学试剂合成相媲美的具有纯相结构的致密化堇青石陶瓷。
Densified cordierite ceramic with pure-phase structure and preparation method of densified cordierite ceramic
一种具有纯相结构的致密化堇青石陶瓷及其制备方法
WANG YONGZHEN (author) / WANG DEYIN (author) / LIU HONGWEI (author) / WANG XIAOMIN (author)
2023-10-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2015