Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of chromium aluminum carbide ceramic, chromium aluminum carbide ceramic and application
The invention relates to a preparation method of chromium aluminum carbide ceramic, the chromium aluminum carbide ceramic and application, and belongs to the technical field of ceramic material preparation. The invention provides a preparation method of chromium aluminum carbide ceramic. The preparation method comprises the following steps: S1, performing pre-ball-milling treatment on chromium powder; s2, aluminum powder, carbon powder and chromium powder obtained through pre-ball-milling treatment are mixed according to the molar ratio of (1-1.1): 1: 2 and then subjected to ball-milling, and mixed powder is obtained; s3, sintering the mixed powder under a protective atmosphere or a vacuum condition to obtain a precursor; s4, crushing the precursor, and carrying out ball milling on the crushed precursor, a solvent, a binder and a dispersant to obtain slurry; and S5, adjusting the pH value of the slurry to be alkaline, and then carrying out spray granulation to obtain the chromium aluminum carbide ceramic. According to the preparation method of the chromium aluminum carbide ceramic, the sphericity degree, the fluidity, the purity, the thermal shock resistance and the high-temperature corrosion resistance of the chromium aluminum carbide ceramic powder can be improved, then the preparation difficulty of a chromium aluminum carbide coating is reduced, and the preparation efficiency and quality of the coating are improved.
本申请涉及一种铬碳化铝陶瓷的制备方法、铬碳化铝陶瓷和应用，属于陶瓷材料制备技术领域。本申请提供的一种铬碳化铝陶瓷的制备方法，包括如下步骤：S1、对铬粉进行预球磨处理；S2、将铝粉、碳粉和预球磨处理得到的铬粉按照摩尔比(1～1.1)：1：2混合后进行球磨，得到混合粉；S3、将混合粉在保护气氛或真空条件下烧结，得到前驱体；S4、将前驱体破碎，将破碎后的前驱体、溶剂、粘结剂及分散剂球磨，得到浆料；S5、调节浆料的pH值至碱性后进行喷雾造粒，得到铬碳化铝陶瓷。上述铬碳化铝陶瓷的制备方法能够提高铬碳化铝陶瓷粉末的球形度、流动性、纯度、抗热震性和抗高温腐蚀性，进而降低铬碳化铝涂层的制备难度，提高涂层的制备效率和质量。
Preparation method of chromium aluminum carbide ceramic, chromium aluminum carbide ceramic and application
The invention relates to a preparation method of chromium aluminum carbide ceramic, the chromium aluminum carbide ceramic and application, and belongs to the technical field of ceramic material preparation. The invention provides a preparation method of chromium aluminum carbide ceramic. The preparation method comprises the following steps: S1, performing pre-ball-milling treatment on chromium powder; s2, aluminum powder, carbon powder and chromium powder obtained through pre-ball-milling treatment are mixed according to the molar ratio of (1-1.1): 1: 2 and then subjected to ball-milling, and mixed powder is obtained; s3, sintering the mixed powder under a protective atmosphere or a vacuum condition to obtain a precursor; s4, crushing the precursor, and carrying out ball milling on the crushed precursor, a solvent, a binder and a dispersant to obtain slurry; and S5, adjusting the pH value of the slurry to be alkaline, and then carrying out spray granulation to obtain the chromium aluminum carbide ceramic. According to the preparation method of the chromium aluminum carbide ceramic, the sphericity degree, the fluidity, the purity, the thermal shock resistance and the high-temperature corrosion resistance of the chromium aluminum carbide ceramic powder can be improved, then the preparation difficulty of a chromium aluminum carbide coating is reduced, and the preparation efficiency and quality of the coating are improved.
本申请涉及一种铬碳化铝陶瓷的制备方法、铬碳化铝陶瓷和应用，属于陶瓷材料制备技术领域。本申请提供的一种铬碳化铝陶瓷的制备方法，包括如下步骤：S1、对铬粉进行预球磨处理；S2、将铝粉、碳粉和预球磨处理得到的铬粉按照摩尔比(1～1.1)：1：2混合后进行球磨，得到混合粉；S3、将混合粉在保护气氛或真空条件下烧结，得到前驱体；S4、将前驱体破碎，将破碎后的前驱体、溶剂、粘结剂及分散剂球磨，得到浆料；S5、调节浆料的pH值至碱性后进行喷雾造粒，得到铬碳化铝陶瓷。上述铬碳化铝陶瓷的制备方法能够提高铬碳化铝陶瓷粉末的球形度、流动性、纯度、抗热震性和抗高温腐蚀性，进而降低铬碳化铝涂层的制备难度，提高涂层的制备效率和质量。
Preparation method of chromium aluminum carbide ceramic, chromium aluminum carbide ceramic and application
铬碳化铝陶瓷的制备方法、铬碳化铝陶瓷和应用
GUO HONGBO (Autor:in) / LI JIMENG (Autor:in) / HE JIAN (Autor:in) / QIAO JIAO (Autor:in) / BAI ZHIMING (Autor:in)
04.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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