Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-temperature-resistant creep-resistant ceramic material and preparation method thereof
The invention belongs to the technical field of ceramic preparation, and particularly relates to a high-temperature-resistant creep-resistant ceramic material and a preparation method thereof.The preparation method comprises the following steps that silicon nitride, a sintering aid, boron nitride, polyethylene glycol and absolute ethyl alcohol are mixed to obtain slurry A; adding silicon carbide whiskers into an absolute ethyl alcohol solution dissolved with isopropanol, and mixing to obtain slurry B; adding the slurry A into the slurry B, and uniformly stirring to obtain slurry C; carrying out granulation treatment on the slurry C to obtain granulated powder; and sintering the granulated powder to obtain the high-temperature-resistant creep-resistant ceramic material. The prepared ceramic sealing material has the following properties: the accumulated creep strain under the thermal load of 1400 DEG C for 40 hours is less than or equal to 2%, the mass change rate of water oxygen oxidation at 1400 DEG C for 20 hours is less than or equal to 0.5%, and the blank of the domestic aerobic ceramic sealing material capable of resisting the temperature of 1400 DEG C for a long time is filled.
本发明属于陶瓷制备技术领域，具体地说涉及一种耐高温抗蠕变陶瓷材料及其制备方法，制备方法包括以下步骤：将氮化硅、烧结助剂、氮化硼、聚乙二醇和无水乙醇混合得到料浆A；将碳化硅晶须加入到溶有异丙醇的无水乙醇溶液中混合得到料浆B；将所述料浆A加入所述料浆B中，搅拌均匀得到料浆C；对所述浆料C进行造粒处理，得到造粒粉体；对所述造粒粉体进行烧结处理得到耐高温抗蠕变陶瓷材料；制备的陶瓷密封材料具有以下性能：1400℃热力载荷下40h累积蠕变应变≤2％，1400℃水氧氧化20h质量变化率小于≤0.5％，填补了国内有氧长时耐温1400℃陶瓷密封材料的空白。
High-temperature-resistant creep-resistant ceramic material and preparation method thereof
The invention belongs to the technical field of ceramic preparation, and particularly relates to a high-temperature-resistant creep-resistant ceramic material and a preparation method thereof.The preparation method comprises the following steps that silicon nitride, a sintering aid, boron nitride, polyethylene glycol and absolute ethyl alcohol are mixed to obtain slurry A; adding silicon carbide whiskers into an absolute ethyl alcohol solution dissolved with isopropanol, and mixing to obtain slurry B; adding the slurry A into the slurry B, and uniformly stirring to obtain slurry C; carrying out granulation treatment on the slurry C to obtain granulated powder; and sintering the granulated powder to obtain the high-temperature-resistant creep-resistant ceramic material. The prepared ceramic sealing material has the following properties: the accumulated creep strain under the thermal load of 1400 DEG C for 40 hours is less than or equal to 2%, the mass change rate of water oxygen oxidation at 1400 DEG C for 20 hours is less than or equal to 0.5%, and the blank of the domestic aerobic ceramic sealing material capable of resisting the temperature of 1400 DEG C for a long time is filled.
本发明属于陶瓷制备技术领域，具体地说涉及一种耐高温抗蠕变陶瓷材料及其制备方法，制备方法包括以下步骤：将氮化硅、烧结助剂、氮化硼、聚乙二醇和无水乙醇混合得到料浆A；将碳化硅晶须加入到溶有异丙醇的无水乙醇溶液中混合得到料浆B；将所述料浆A加入所述料浆B中，搅拌均匀得到料浆C；对所述浆料C进行造粒处理，得到造粒粉体；对所述造粒粉体进行烧结处理得到耐高温抗蠕变陶瓷材料；制备的陶瓷密封材料具有以下性能：1400℃热力载荷下40h累积蠕变应变≤2％，1400℃水氧氧化20h质量变化率小于≤0.5％，填补了国内有氧长时耐温1400℃陶瓷密封材料的空白。
High-temperature-resistant creep-resistant ceramic material and preparation method thereof
一种耐高温抗蠕变陶瓷材料及其制备方法
ZHU BAOXIN (Autor:in) / WANG HONGSHENG (Autor:in) / LUAN QIANG (Autor:in) / WEI QIHONG (Autor:in) / GAI YING (Autor:in) / SHAO CHANGTAO (Autor:in) / JIANG LIPING (Autor:in) / BI WENQI (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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