Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Columnar grain high-purity cordierite ceramic as well as preparation method and application thereof
The invention discloses columnar grain high-purity cordierite ceramic as well as a preparation method and application thereof. The cylindrical grain high-purity cordierite ceramic is prepared by the following steps: mixing magnesium oxide, aluminum oxide and silicon dioxide raw materials, granulating, carrying out compression molding on the granulated powder, carrying out rubber removal treatment, carrying out high-temperature reaction to synthesize cordierite, refining, granulating, carrying out compression molding by adopting a mold, carrying out cold isostatic pressing treatment, and carrying out high-temperature sintering, thereby obtaining the cylindrical grain high-purity cordierite ceramic. And sintering at low temperature to obtain the columnar grain high-purity cordierite ceramic. Raw material powder is subjected to compression molding by a mold; particularly, the pressure for compression molding is controlled to be 4-10 MPa, and the pressure maintaining time is 5-15 s, so that the distance between raw material particles can be remarkably reduced, the solid-phase reaction for synthesizing cordierite is fully carried out, the content of a cordierite crystal phase is remarkably increased, and the comprehensive performance of the obtained columnar grain high-purity cordierite ceramic is remarkably improved.
本发明公开了一种柱状形晶粒高纯堇青石陶瓷及其制备方法与应用；柱状形晶粒高纯堇青石陶瓷由氧化镁、氧化铝、二氧化硅原料进行混合后造粒，将造粒粉体压制成型后进行排胶处理，高温反应合成出堇青石，细化后造粒，采用模具压制成型，冷等静压处理，排胶处理后低温烧结得到柱状形晶粒高纯堇青石陶瓷。本发明通过原料粉体采用模具压制成型；特别是控制所述的压制成型的压力为4～10MPa，保压时间5～15s，可显著减小原料颗粒之间的间距，使合成堇青石的固相反应充分进行，显著提高堇青石晶相的含量，并使得所得柱状形晶粒高纯堇青石陶瓷综合性能显著提升。
Columnar grain high-purity cordierite ceramic as well as preparation method and application thereof
The invention discloses columnar grain high-purity cordierite ceramic as well as a preparation method and application thereof. The cylindrical grain high-purity cordierite ceramic is prepared by the following steps: mixing magnesium oxide, aluminum oxide and silicon dioxide raw materials, granulating, carrying out compression molding on the granulated powder, carrying out rubber removal treatment, carrying out high-temperature reaction to synthesize cordierite, refining, granulating, carrying out compression molding by adopting a mold, carrying out cold isostatic pressing treatment, and carrying out high-temperature sintering, thereby obtaining the cylindrical grain high-purity cordierite ceramic. And sintering at low temperature to obtain the columnar grain high-purity cordierite ceramic. Raw material powder is subjected to compression molding by a mold; particularly, the pressure for compression molding is controlled to be 4-10 MPa, and the pressure maintaining time is 5-15 s, so that the distance between raw material particles can be remarkably reduced, the solid-phase reaction for synthesizing cordierite is fully carried out, the content of a cordierite crystal phase is remarkably increased, and the comprehensive performance of the obtained columnar grain high-purity cordierite ceramic is remarkably improved.
本发明公开了一种柱状形晶粒高纯堇青石陶瓷及其制备方法与应用；柱状形晶粒高纯堇青石陶瓷由氧化镁、氧化铝、二氧化硅原料进行混合后造粒，将造粒粉体压制成型后进行排胶处理，高温反应合成出堇青石，细化后造粒，采用模具压制成型，冷等静压处理，排胶处理后低温烧结得到柱状形晶粒高纯堇青石陶瓷。本发明通过原料粉体采用模具压制成型；特别是控制所述的压制成型的压力为4～10MPa，保压时间5～15s，可显著减小原料颗粒之间的间距，使合成堇青石的固相反应充分进行，显著提高堇青石晶相的含量，并使得所得柱状形晶粒高纯堇青石陶瓷综合性能显著提升。
Columnar grain high-purity cordierite ceramic as well as preparation method and application thereof
一种柱状形晶粒高纯堇青石陶瓷及其制备方法与应用
RAO PINGGEN (Autor:in) / LI ZIFAN (Autor:in) / FU CENXIN (Autor:in) / CHEN JINXUAN (Autor:in) / CHEN CHAO (Autor:in) / LYU MING (Autor:in) / YU SHUYAN (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
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