Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides low-temperature sintered silicon oxide ceramic powder, silicon oxide ceramic and a preparation method of the low-temperature sintered silicon oxide ceramic powder. Beta silicon nitride powder is used as a raw material, and low-melting-point glass powder is used as a sintering aid. Beta silicon nitride powder with the content of 75-90 wt% and the particle size range of 0.5-1 [mu] m is selected, and low-melting-point glass powder with the content of 10-25 wt% is added. And carrying out ball milling, drying and tabletting on the mixed powder, carrying out cold isostatic pressing, and carrying out pressureless sintering at 1400-1600 DEG C in a nitrogen atmosphere to obtain the silicon nitride ceramic material. The beta silicon nitride powder provided by the invention can be used for directly firing beta silicon nitride ceramic at low temperature. According to the preparation method of the silicon oxide ceramic, the sintering temperature of silicon nitride is reduced, the preparation efficiency of the silicon nitride ceramic is improved, and the preparation method is mainly applied to fire-resistant and flame-retardant materials.
本发明提供了一种低温烧结氧化硅陶瓷粉体、氧化硅陶瓷及其制备方法，以β氮化硅粉为原料、低熔点玻璃粉为烧结助剂。选用含量75‑90wt％、粒度范围为0.5‑1μm的β氮化硅粉，并添加含量为10‑25wt％的低熔点玻璃粉。将混合粉体球磨、干燥、压片，经过冷等静压，在1400℃‑1600℃下氮气气氛下无压烧结，得到氮化硅陶瓷材料。本发明提供的β氮化硅粉能够直接低温烧制β氮化硅陶瓷。本发明提供的氧化硅陶瓷制备方法降低了氮化硅烧结温度，提高了氮化硅陶瓷的制备效率，主要应用方向为耐火阻燃材料。
The invention provides low-temperature sintered silicon oxide ceramic powder, silicon oxide ceramic and a preparation method of the low-temperature sintered silicon oxide ceramic powder. Beta silicon nitride powder is used as a raw material, and low-melting-point glass powder is used as a sintering aid. Beta silicon nitride powder with the content of 75-90 wt% and the particle size range of 0.5-1 [mu] m is selected, and low-melting-point glass powder with the content of 10-25 wt% is added. And carrying out ball milling, drying and tabletting on the mixed powder, carrying out cold isostatic pressing, and carrying out pressureless sintering at 1400-1600 DEG C in a nitrogen atmosphere to obtain the silicon nitride ceramic material. The beta silicon nitride powder provided by the invention can be used for directly firing beta silicon nitride ceramic at low temperature. According to the preparation method of the silicon oxide ceramic, the sintering temperature of silicon nitride is reduced, the preparation efficiency of the silicon nitride ceramic is improved, and the preparation method is mainly applied to fire-resistant and flame-retardant materials.
本发明提供了一种低温烧结氧化硅陶瓷粉体、氧化硅陶瓷及其制备方法，以β氮化硅粉为原料、低熔点玻璃粉为烧结助剂。选用含量75‑90wt％、粒度范围为0.5‑1μm的β氮化硅粉，并添加含量为10‑25wt％的低熔点玻璃粉。将混合粉体球磨、干燥、压片，经过冷等静压，在1400℃‑1600℃下氮气气氛下无压烧结，得到氮化硅陶瓷材料。本发明提供的β氮化硅粉能够直接低温烧制β氮化硅陶瓷。本发明提供的氧化硅陶瓷制备方法降低了氮化硅烧结温度，提高了氮化硅陶瓷的制备效率，主要应用方向为耐火阻燃材料。
Low-temperature sintered silicon oxide ceramic powder, silicon oxide ceramic and preparation method thereof
一种低温烧结氧化硅陶瓷粉体、氧化硅陶瓷及其制备方法
06.08.2024
Patent
Elektronische Ressource
Chinesisch
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