Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength aluminum oxide ceramic and preparation method thereof
The invention discloses high-strength aluminum oxide ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, and the high-strength aluminum oxide ceramic is prepared from the following raw materials in parts by weight: 80-100 parts of interface phase slurry, 20-30 parts of a fiber carrier, 10-20 parts of modified nano zirconium oxide, 6-10 parts of a plasticizer, 3-5 parts of a cross-linking agent and 60-100 parts of water, the preparation method of the interface phase slurry comprises the following steps: adding nanoscale aluminum oxide powder and hexagonal boron nitride powder into ultrasonic stirring equipment according to a volume ratio of 2: 5, and uniformly mixing. According to the preparation method, aluminum oxide chopped fibers are taken as a matrix, nano aluminum oxide powder and micron-sized hexagonal boron nitride powder are taken as a composite interface phase, a fiber carrier wrapped by the composite interface phase is obtained, micron-sized hexagonal boron nitride is a two-dimensional layered structure material, Van der Waals force between layers is weak, and the surface of the micron-sized hexagonal boron nitride is uniform. And the micron-sized hexagonal boron nitride is easy to slide between layers under the action of shearing force, so that the ceramic body based on the aluminum oxide fiber is prevented from losing the toughening effect in the sintering process.
本发明公开了一种高强度氧化铝陶瓷及其制备方法，属于陶瓷材料技术领域，由以下重量份数的原料制备而成：界面相浆料80‑100份、纤维载体20‑30份、改性纳米氧化锆10‑20份、增塑剂6‑10份、交联剂3‑5份和水60‑100份；所述界面相浆料的制备方法：将纳米级三氧化二铝粉体和六方氮化硼粉体按2：5的体积比加入到超声搅拌设备内混合均匀。本发明中，以三氧化二铝短切纤维为基体，以纳米三氧化二铝粉体和微米级六方氮化硼粉体作为复合界面相，获得了复合界面相包裹的纤维载体，微米级六方氮化硼是一种二维层状结构材料，层与层之间的范德华力偏弱，且微米级六方氮化硼在剪切力的作用下容易发生层间滑动，防止基于三氧化二铝纤维的陶瓷坯体在烧结的过程中失去增韧作。
High-strength aluminum oxide ceramic and preparation method thereof
The invention discloses high-strength aluminum oxide ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, and the high-strength aluminum oxide ceramic is prepared from the following raw materials in parts by weight: 80-100 parts of interface phase slurry, 20-30 parts of a fiber carrier, 10-20 parts of modified nano zirconium oxide, 6-10 parts of a plasticizer, 3-5 parts of a cross-linking agent and 60-100 parts of water, the preparation method of the interface phase slurry comprises the following steps: adding nanoscale aluminum oxide powder and hexagonal boron nitride powder into ultrasonic stirring equipment according to a volume ratio of 2: 5, and uniformly mixing. According to the preparation method, aluminum oxide chopped fibers are taken as a matrix, nano aluminum oxide powder and micron-sized hexagonal boron nitride powder are taken as a composite interface phase, a fiber carrier wrapped by the composite interface phase is obtained, micron-sized hexagonal boron nitride is a two-dimensional layered structure material, Van der Waals force between layers is weak, and the surface of the micron-sized hexagonal boron nitride is uniform. And the micron-sized hexagonal boron nitride is easy to slide between layers under the action of shearing force, so that the ceramic body based on the aluminum oxide fiber is prevented from losing the toughening effect in the sintering process.
本发明公开了一种高强度氧化铝陶瓷及其制备方法，属于陶瓷材料技术领域，由以下重量份数的原料制备而成：界面相浆料80‑100份、纤维载体20‑30份、改性纳米氧化锆10‑20份、增塑剂6‑10份、交联剂3‑5份和水60‑100份；所述界面相浆料的制备方法：将纳米级三氧化二铝粉体和六方氮化硼粉体按2：5的体积比加入到超声搅拌设备内混合均匀。本发明中，以三氧化二铝短切纤维为基体，以纳米三氧化二铝粉体和微米级六方氮化硼粉体作为复合界面相，获得了复合界面相包裹的纤维载体，微米级六方氮化硼是一种二维层状结构材料，层与层之间的范德华力偏弱，且微米级六方氮化硼在剪切力的作用下容易发生层间滑动，防止基于三氧化二铝纤维的陶瓷坯体在烧结的过程中失去增韧作。
High-strength aluminum oxide ceramic and preparation method thereof
一种高强度氧化铝陶瓷及其制备方法
GAN JIANMING (Autor:in)
12.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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